R-90-1530 - 10/23/19901
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CITY OF
ROUND ROCK
PUBLIC WORKS
PROJECT
•411.11•111/
LOOP 384
UTILITY ADJUSTMENTS
PHASE TWO
SPECIFICATIONS AND
CONTRACT DOCUMENTS
1
LOOP 384 UTILITY ADJUSTMENTS
PHASE TWO
Table of Contents
Section Description Page
1.0 Notice to Bidders NB -1
2.0 Bid Documents BD -1
3.0 Post Bid Documents PBD -1
4.0 General Conditions GC -1
5.0 Special Conditions SC -1
6.0 Technical Specifications TS -1
1p2 /h2
1p2dh2
1.0 NOTICE TO BIDDERS
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Round Rock Leader
October 1, 1990
October 8, 1990
October 15, 1990
NOTICE TO BIDDERS
Sealed proposals addressed to the City Secretary, City of
Round Rock, 221 East Main Street, Round Rock, Texas, 78664 for
furnishing all labor, material and equipment and performing all
work required for the project titled LOOP 384 UTILITY ADJUSTMENTS,
PHASE TWO (Project involves adjusting water mains at various
locations along Business Highway 81) will be received until October
16, 1990 at 2:00 P.M. then publicly opened and read aloud on the
3rd floor of City Hall at the same address. Bid envelopes should
state date and time of bid and "LOOP 384 UTILITY ADJUSTMENTS, PHASE
TWO ". No bids may be withdrawn after the scheduled opening time.
Any bids received after scheduled bid opening time will be returned
unopened.
Bids must be submitted on City of Round Rock proposal forms
and must be accompanied by an acceptable bid security as outlined
in the Instructions to Bidders, payable to the City of Round Rock,
Texas, equal to five percent (5%) of the total bid amount. Plans,
Proposal Forms, Specifications, and Instructions to Bidders may be
obtained from the Department of Public Works, 300 South Blair, in
Round Rock, Texas, beginning October 1, 1990, for a non — refundable
charge of $20.00 per set.
In case of ambiguity, duplication, or obscurity in the bids,
the City of Round Rock reserves the right to construe the meaning
thereof. The City of Round Rock further reserves the right to
reject any or all bids and waive any informalities and
irregularities in the bids received.
The successful bidder will be expected to execute the standard
contract prepared by the City of Round Rock, and to furnish
performance and payment bonds as described in the bid documents.
JOANNE LAND
City Secretary
City of Round Rock
Publish Dates: Austin American Statesman
September 30, 1990
October 7, 1990
October 14, 1990
NB -1
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2.0 BID DOCUMENTS
INSTRUCTIONS TO BIDDERS
1. Prior to submitting any proposal, bidders are required to read
the plans, specifications, proposal, contract and bond forms
carefully; to inform themselves by their independent research, test
and investigation of the difficulties to be encountered and judge
for themselves of the accessibility of the work and all attending
circumstances affecting the cost of doing the work and the time
required for its completion and obtain all information required to
make an intelligent proposal.
2. Should the bidder find discrepancies in, or omissions from the
plans, specifications, or other documents, or should he be in doubt
as to their meaning, he should notify at once the Engineer and
obtain clarification or addendum prior to submitting any,bid.
3. It shall be the responsibility of the bidder to see that his
bid is received at the place and time named in the Notice to
Bidders. Bids received after closing time will be returned
unopened.
4. Bids shall be submitted in sealed envelopes plainly marked
"Sealed Bid" and showing the name of the project, the job number
if applicable, and the opening date and time.
5. Bids shall be submitted on proposal forms furnished by the
City of Round Rock.
6. All proposals shall be accompanied by a certified cashier's
check upon a National or State bank in an amount not less than five
percent (5%) of the total maximum bid price, payable without
recourse to the City of Round Rock, or a bid bond in the same
amount from a reliable surety company, as a guarantee that the
bidder will enter into a contract and execute performance and
payment bonds, as stipulated by item 11 below, within ten (10) days
after notice of award of contract to him. Proposal guarantees must
be submitted in the same sealed envelope with the proposal.
Proposals submitted without check or bid bonds will not be
considered.
7. All bid securities will be returned to the respective bidders
within twenty -five (25) days after bids are opened, except those
which the owner elects to hold until the successful bidder has
executed the contract. Thereafter, all remaining securities,
including security of the successful bidder, will be returned
within sixty (60) days.
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BD -1
8. Until the award of the contract, the City of Round Rock
reserves the right to reject any and all proposals and to waive
technicalities; to advertise for new proposals; or to do the work
otherwise when the best interest of the City of Round Rock will be
thereby promoted.
9. In case of ambiguity or lack of clarity in the statement of
prices in the bids, the City of Round Rock reserves the right to
consider the most favorable analysis thereof, or to reject the bid.
Unreasonable (or unbalanced) prices submitted in a bid may result
in rejection of such bid or other bids.
10. Award of the contract, if awarded, will be made within sixty
(60) days after opening of the proposals, and no bidder may
withdraw his proposal within said sixty (60) day period of time
unless a prior award is made.
11. Within ten (10) days after written notification of award of
the contract, the successful bidder must furnish a performance
bond and a payment bond in the amount of one - hundred percent (100 %)
of the total contract price. Provided however, if the contract
price is less than $50,000.00, the bidder shall have the option of
providing a letter of credit in lieu of a performance bond, said
letter of credit in a form acceptable to the City of Round Rock.
Said performance bond, or letter of credit, if applicable, and
payment bond shall be from an approved surety company holding a
permit from the State of Texas to act as surety (and acceptable
according to the latest list of companies holding certificates of
authority from the Security of the Treasury of the United States)
or other surety or sureties acceptable to the Owner, with approval
prior to bid opening.
12. If the total contract price is less than $25,000.00 the
performance and payment bond requirement will be waived by the City
of Round Rock. Payment will be made following completion of the
work.
13. Failure to execute the construction contract within ten (10)
days of written notification of award or failure to furnish the
performance bond, or letter of credit if applicable, and payment
bond as required by item 11 above, shall be just cause for the
annulment of the award. In case of the annulment of the award, the
proposal guarantee shall become the property of the City of Round
Rock, not as a penalty, but as a liquidated damage.
14. No contract shall be binding upon the City of Round Rock unit
it has been signed by its Mayor after having been duly authorized
to do so by the City Council.
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BD -2
15. The Contractor shall not commence work under this contract
until he has furnished certification of all insurance required and
such has been approved by the City of Round Rock, nor shall the
contractor allow any subcontractor to commence work on his
subcontract until proof of all similar insurance that is required
of the subcontractor has been furnished and approved.
16. Any quantities given in any portion of the contract documents,
including the plans, are estimates only, and the actual amount of
work required may differ somewhat from the estimates. The basis
for the payment shall be the actual amount of work done and /or
material furnished.
17. No Texas sales tax shall be included in the prices bid for
work under this contract. This contract is issued by an
organization which is qualified for exemption pursuant to the
provisions of Article 10.04 (h) of the Texas Limited Sales, Excise
and Use Tax Act. The contractor performing this contract may
purchase, rent or lease all materials, supplies, equipment used or
consumed in the performance of this contract by issuing to his
supplier an exemption certificate complying with State
Comptroller's ruling #95 -0.07. Any such exemption certificate
issued by the contractor in lieu of the tax shall be subject to
the provisions of the State Comptroller's ruling #95 -0.09 as
amended to be effective July 1, 1979.
18. No conditional bids will be accepted.
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BD -3
BID BOND
KNOW ALL MEN BY THESE PRESENTS, THAT WE
and
and held and firmly bound unto the
as PRINCIPAL
as SURETY,
hereinafter referred to as
the " OWNER", in the penal sum of five percent (5%) of the total amount
of the bid of the PRINCIPAL submitted to the OWNER, for the work
described below; for the payment of which sum in lawful money of the
United States of America, well and truly to be made, we bind ourselves,
our heirs, executors, administrators, successors and assigns, jointly and
severally, firmly by these presents. In no case shall the liability of the
SURETY hereunder exceed the sum of $
The CONDITIONS OF THIS OBLIGATION ARE SUCH, THAT whereas, said
PRINCIPAL has submitted the above mentioned bid to the OWNER, for
construction for the work under the "SPECIFICATIONS FOR
CONSTRUCTION OF
for which bids are to be
opened at the office of the OWNER on ,1990.
NOW THEREFORE, if the PRINCIPAL is awarded the contract, and within
the time and manner required under the heading "Instructions to Bidders ",
after the prescribed forms are presented to him for signature, enters into
a written agreement, substantially in the form contained in the
Specifications, in accordance with the bid and files the town bonds with
the OWNER, one to guarantee faithful performance and the other to
guarantee payment for labor and matprialq, then this obligation shall be
null and void, otherwise, it shall be and remain in full force and effect.
In the event suit is brought upon this bond by the OWNER and judgement
is recovered, said SURETY shall pay all costs incurred by the OWNER in
such suit, including a reasonable attorney's fee to be fixed by the Court.
In WITNESS WHEREOF, we have hereunto set our hands and mats this
day of ,1990.
Principal: Surety:
By: (Seal) By:
BD-4
bidbondl/1
(Seat)
PROPOSAL BIDDING SHEET
JOB NAME: Loop 384 Utility Adjustments - Phase Two
JOB LOCATION: Round Rock, Williamson County, Texas
OWNER: City of Round Rock, Texas
DATE: October, 1990
Gentlemen:
Pursuant to the foregoing Notice to Bidders and Instructions to
Bidders, the undersigned bidder hereby proposes to do all the work, to
furnish all necessary superintendence, labor, machinery, equipment,
tools, materials, insurance and miscellaneous items, to complete all the
work on which he bids as provided by the attached supplemental
specifications, and as shown on the plans for the construction of Loop
384 Utility Adjustments, Phase Two and binds himself on acceptance of
this proposal to execute a contract and bond for completing said project
within the time stated, for the following prices, to wit:
BASE BID
Bid Item Description Unit
Item Quantity Unit and Written Unit Price Price Amount
1 1 L.S. Approx. Sta. 40137+50: Cut
6" Water Line and Install
Blind Flanges on Existing
Tees, complete in place,
per Lump Sum.
(pbddh2)
for 6 we -n-a c .
Dollars and i, Cents
2 1 L.S. Approx. Sta. 40150 +14:
Vertical Adjustment of 6"
Water Line, complete in
place, per Lump Sum.
for -Yveb .
Dollars and Mo Cents 3 StO 3,SZ.O
3 1 L.S. Approx. Sta. 40163 +00:
Adjust 6" Water Lines as
per Plan Detail "A ", com-
plete in place, per Lump
Sum. / aa
for � u,S q,
Dollars and ub Cents 4 cLD 9 ; b&
BD -5
/, c7:70—
Bid Item Description Unit
Item Quantity Unit and Written Unit Price Price Amount
4 1 L.S. Approx. Sta. 40165 +64:
Horizontal Adjustment of
6" Water Line, complete
in place, per Lump Sum.
for - �LO-J.
Dollars and Cents 2 t5b 2 ca:)
5 1 L.S. Approx. Sta. 40173 +90:
Vertical Adjustment of 12"
Water Line, complete in
place,
' per
� Lump Sum.
for �v� — YI,•4
Dollars and 1,14, Cents __
6 1 L.S. Approx. Sta. 40175 +33:
Horizontal Adjustment of
12" Water Line, complete
in place, per Lump Sum.
forltre,e4LJAaJ
Dollars and niv Cents
7 1 L.S. Approx. Sta. 40178 +80:
Horizontal Adjustment of
12" Water Line, complete
in place, ' per Lump Sum.
for - aurce, - C„cusn 4
Dollars and Aka Cents 3 3,sDo
8 1 L.S. Approic. Sta. 40181 +57:
Horizontal Adjustment of
12" Water Line, complete
in place, per Lump Sum.
V --
f o r , re 2 -['In au.5e.u.at'i�r{.
Dollars and Ku, Cents 3gxG 3,s
9 1 L.S. Approx. Sta. 40186 +20:
Vertical Adjustment of 8"
Water Line, complete in
place, per Lump Sum.
(pbddh2)
forJ,,As - -L.-sc Ctve
Dollars and n.w Cents ZST�� 2,SZX
BD -6
Bid Item Description Unit
Item Quantity Unit and Written Unit Price Price Amount
10 1 L.S. Trench Safety Systems, all
depths exceeding 5 feet,
complete in place, per
Lump Sum. �p
for-kb-To - itou.sa.4,
Dollars and 1WD Cents 2-c Y 2 (pG
ALTERNATE BID
Bid Item Description Unit
Item Quantity Unit and Written Unit Price Price Amount
10A 1 L.S. Approx. Sta. 40173 +90: Bore
and Encasement for 12" Water
Line'and all other work as
per schedule shown in the
Plans, in lieu of item 5 above,
complete in place, per Lump Sum.
forsixlaux 4 Lcuse,1
Dollars and No Cents /(e ' 0 _ / /
11A 1 L.S. Approx. Sta. 40186 +20: Bore
and Encasement for 8" Water
Line and all other work as
per schedule shown in the
Plans, in lieu of item 9 above,
complete in place, per Lump Sum.
Dollars and uo Cents 14 WO X4,1%
TOTAL ALTERNATE BID (Items 1, 2, 3, 4, 6, 7, 8, 10, 10A & 11A) cr --
(pbddh2)
TOTAL BASE BID (Items 1 thru 10) 3 5t
BD -7
If this proposal is accepted, the undersigned agrees to execute the
contract and provide necessary bonds and insurance certification as per
the Instruction to Bidders and commence work within ten (10) days after
written Notice to Proceed. The undersigned further agrees to complete
the work in full within sixty (60) calendar days after the date of the
written Notice to Proceed.
The undersigned certifies that the bid prices contained in the
proposal have been carefully checked and are submitted as correct and
final. The owner reserves the right to reject any or all bids and may
waive any informalities.
Respegt �fuullySub
�.a y3 SUt
Title for:
tted,
ELSE�I (s irs /NC.
Date
(pbddh2)
/6 -/6-
BD -8
Ce - ! 4 K ? b 13
Address
33/ 44'S7
Telephone
Name of Firm Secretary, if Contractor is a
Corporation
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Series 0 Bidding and Contract Requirements
Statement of Bidder's Qualifications Section 00061
All questions must be answered and the data given must be clear and comprehensive. This statement must be notarized. If
necessary, questions may be answered on separate attached sheets. The Bidder may submit any additional information he
desires. f i
1. Name of Bidder. n1 £ s . t 7, ` II ' z-.
2. Permanent main office address and telephone number. P O /3 0 sb(' C Pc-4- "Tx•
`74)(0 13 (s72) 3 44C1
3. When organized 1 . 9 1 1 'TUBE -WBE.
4. If a corporation, where incorporated? �P
5. How many years have you been engaged in the contracting business under your present firm or trade name713. Yeats
6. Contracts on hand: �` ` (Provide a schedule of these, showing name and address of
Owner, amount of each contract and the approximate anticipated dates of completion.)
7. Classification of work performed by your company in which you request prequalitiication by the City as a Prime Contractor
by your experience recorded in:
Airport Buildings _ Airport Construction - Bridges
- Building Remodeling - Buildings Drainage
Electric, Overhead Electric, Underground - Parks
- Power Plants, New Power Plants, Retrofit - Streets
Subdivision Electric - Swimming Pools - Wastewater Plants
- Wastewater Storage and Pumping - Water Plants
I
Water and Wastewater Distr. & Collection - Water Storage and Pumping
- Multiple T.B.M. Tunneling over 10,000 L.F.
- Other (Specify) /
8. Have you completed all contracts awarded to you? V Yes No If no, submit details
9. Has your firm ever been awarded a bonus for early completion of wwRrk? V Yes _ No I1 yes, give details
e s Fe/v l✓ (fl�E es j q CX (CAaAe t Ce,Asf . Vrivu.• Cawi N-)
10. Have you ever defaulted on a oontract? 0 If so, where and why?
11. Is your firm presently engaged in litigation with any City? _ Yes • No If yes, submit description and state case
number, style of case and court in which pending or in which judgement was entered.
12. Has your firm ever been assessed Liquidated Damages on any project? - Yes _ No. If yes, submit details.
13. Attach a list of the more important projects recently completed by your company (six most recent), stating the approximate
cost for each and the month and year completed. Attach name, address and phone number of the person to contact from
each project.
14. Attach a list of your major equipment available for this contract.
15. List experience in construction work similar in importance to this project. Attach name, address and phone number of the
person to contact from each project.
'i{ U. GN Cr4- of f2.cr 4.2ccic 0.5 peNv -e. c eA,ch Ut r
Page 1
04/17/86 00061
PBDDH2
3.0 POST BID DOCUMENTS
AGREEMENT
THE STATE OF TEXAS
KNOW ALL MEN BY THESE PRESENTS
COUNTY OF WILLIAMSON
"I� That this Agreement made and entered into this Z`3 day
of Nove eA A.D., 1990, by and between the CITY OF ROUND R cK,
TEXAS it's Mayor, First Party, h the Owner and hlsrn .
Le.Wis l..G. of the c.44- o-P Ce County at w1l
State of r e s _ Secdnd Party, hereinafter termed Contractor.
WITNESSETH: That for and in consideration of the payments
and agreements hereinafter mentioned to be made and performed by said
First Party (Owner), the said Second Party (Contractor) hereby agrees
with the first Party to commence and complete the construction of
certain improvements at the prices set forth in the Contractor's Proposal
dated / h - / to - q0 for certain improvements described as follows:
LOOP 384 UTILITY ADJUSTMENTS, PHASE TWO
The Contractor shall perform all work shown on the Plans and
described in the Contract and shall meet all requirements of this
Agreement, the General and Special. Conditions of the Contract; and such
Orders and Agreements for Extra Work as may subsequently be entered by
the above named parties to this Agreement.
The Contractor hereby agrees to commence work under this
contract within 10 consecutive calendar days after the date of the Notice
to Proceed and shall cause work to progress in a manner satisfactory to
the Owner. Such work shall be completed in fu]1 within sixty (60) calendar
days after the date of the written Notice to Proceed. Time is of the
essence to this contract.
The Owner agrees to pay the Con actor in current funds, and to
make payments on account, for the performance of the work in
accordance with the Contract, at the prices set forth in the Contractor's
Proposal, subpct to additions and deductions, all as provided in the
General Conditions of the Agreement.
The following documents together with this Agreement, comprise
the Contract, and they are fully a part thereof as if herein repeated in
full:
The Notice to Bidders
The Instruction to Bidders
The Proposal and Bidding Sheets
The Performance & Payment Bonds
The General Conditions
of Agreement
(agreepbd/3)
PBD-1
The Special Conditions of Agreement
The Technical Specifications
Addenda
Change Orders
The Certificate of Insurance
The Plans
AGREEMENT - continued
In WITNESS WHEREOF the Parties to the presents have executed
this Agreement in the year and day first above written.
ATTEST:
agreepbd/4(2) PBD-2
CITY OF ROUND ROCK, TEXAS, OWNER
Mayor
nlP,I 3 , 4c .
Contractor
P, o, J s SSG
Address
Ce-oL r �a^f� !V 78613
33/ 4457
By:L
This Addendum is to that certain Agreement dated the day
of 0V , 6 , 1990 by and between the City of Round Rock,
Texas and Nelson Lewis, Inc. for certain improvements described as
Loop 384 Utility Adjustments, Phase Two.
The parties hereto agree and stipulate that regardless of
anything contained in the aforesaid Agreement to the contrary, payment
to Nelson Lewis, Inc. by the City of Round Rock is not due until (1)
all work is completed and is accepted by the City, and (2) Nelson
Lewis, Inc. has submitted an affidavit that all bills for labor and
materials used on the project have been paid.
Dated this 25 day of OU�w' -
ATTEST:
ATTEST:
ne Land, City Secretary
Secretary
ADDENDUM TO AGREEMENT
, Corporate
OWNER:
, 1990.
CITY OF ROUND ROCK, TEXAS
By: / /may /2/
Mike Robinson, Mayor
By:
CONTRACTOR:
Nelson Lewis, Inc.
its \/trL Presi0(
PERFORMANCE BOND
THE STATE OF TEXAS )
KNOW ALL MEN BY THESE PRESENTS
COUNTY OF WILLIAMSON )
THAT of the City
of County of , and State of
as principal, and
authorized under the law of the State of Texas to act as surety on bonds
for principals, are held and firmly bound unto THE CITY OF ROUND
ROCK, TEXAS, hereinafter called THE CITY, COUNTY OF WILLIAMSON,
TEXAS, (owner), in the penal sum of
Dollars ($ ) for the payment whereof, the
said Principal and Surety bind themselves, and their heirs, administrators,
executors, successors and assigns, jointly and severally, by these presents:
WHEREAS, the principal has entered into a certain written contract with
the Owner dated the day of , 19 to which the
contract is hereby referred to and made a part hereof as fully and to the
same extent as if copied at length herein consisting of:
NOW, THEREFORE, THE CONDITIONS OF THIS OBLIGATION I5 SUCH,
that if the said principal shall faithfully perform said Contract and shall,
in aR respects, duly and faithfully observe and perform all and singular
the convenants, conditions and agreements in and by said Contract,
agreed and convenanted by the Principal to be observed and performed,
including but not limited to, the repair of any and all defects in said
work occasioned by and resulting from defects in materials furnished by
or workmanship of, the Principal in performing the work covered by said
Contract and occurring within a period of twelve (12) months from the
date of the Contract Completion Certificate and all other covenants and
conditions, according to the true intent and meaning of said Contract and
the Plans and Specifications hereto annexed, then this obligation shall be
void; otherwise to remain in full force and effect;
PROVIDED, HOWEVER, that this bond is executed pursuant to the
provisions of Article 5160 of the Revised Civil Statutes of Texas as
amended and all liabilities on this bond shall be determined in accordance
with the provisions of said Article to the same extent as if it were
copied at length herein.
perf5 PBD-3
PERFORMANCE BOND (CONTINUED)
Surety, for value received, stipulates and agrees that no change,
extension of time, alteration or addition to the term of the contract, or
to the work performed thereunder, or the plans, specifications, or
drawings accompanying the same, shall in anywise affect its obligation on
this bond, and it does hereby waive notice of any such change, extension
of time, alteration or addition to the terms of the contract, or to the
work to be performed thereunder.
IN WITNESS WHEREOF, the said Principal and Surety have signed and
sealed this instrument this day of ,19
Principal
By By
Surety
Title Title
Address Address
The name and address of the Resident Agent of Surety is
PBD-4
1
1 PAYMENT BOND
THE STATE OF TEXAS
KNOW ALL MEN BY THESE PRESENTS
COUNTY OF WILLIAMSON
THAT,
1 of the City of
County of and State of
as Principal, and
1 authorized under the laws of the State of Texas to act as surety on bonds for principals,
are held and firmly bound unto THE CITY OF ROUND ROCK, hereinafter called THE CITY,
COUNTY OF WILLIAMSON, TEXAS (OWNER), in the penal sum of
1 Dollars ($ ) for the payment whereof, the said
Principal and Surety bind themselves, and their heirs, administrators, executors, successors
and assigns, jointly and severally, by these presents:
1 WHEREAS, the Principal has entered into a certain written contract with the Owner, dated
the day of , 19 , to which contract is hereby referred to and made a part
hereof as fully and to the same extent as if copied at length herein.
1 NOW THEREFORE, THE CONDITION OF THIS OBLIGATION IS SUCH, THAT IF THE SAID
Principal shall pay all claimants supplying labor and material to him or a subcontractor in
the prosecution of the work provided for in said contract, then, this obligation shall be void;
'
otherwise to remain in full force and effect;
PROVIDED, HOWEVER, that this bond is executed pursuant to the provisions of Article 5160
1 of the Revised Civil Statutes of Texas as amended and all liabilities on this bond shall be
determined in accordance with the provisions of said Article to the same extent as if it
were copied at length herein.
' Surety, for value received, stipulates and agrees that no change, extension of time,
alteration or addition to the terms of the contract, or to the work performed thereunder, or
the plans, specifications or drawings accompanying the same shall in anywise affect its
1 obligation on this bond, and it does hereby waive notice of any such change, extension of
time, alteration or addition to the terms of the contract, or to the work to be performed
thereunder.
1 IN WITNESS WHEREOF, the said Principal and Surety have signed and sealrxi this Instrument
this day cf , 1989.
1 Principal Surety
1 BY
Title
' Address
The name and address of the Resident Agent of Surety is -
1 dhpaybd/6 PBD- 5
1
h., COVERAG E S .
CERTIFICATE HOLbER
ACORO 75 S t S5)
ISSUE DATE (MM /DD/YY)
10
THIS IS TO CERTIFY THAT POLICIES OF INSURANCE LISTED BELOW HAVE BEEN ISSUED TO THE INSURED NAMED ABOVE FOR THE POLICY PERIOD INDICATED,
NOTWITHSTANDING ANY REQUIREMENT, TERM OR CONDITION OF ANY CONTRACT OR OTHER DOCUMENT WITH RESPECT TO WHICH THIS CERTIFICATE MAY
BE ISSUED OR MAY PERTAIN, THE INSURANCE AFFORDED BY THE POLICIES DESCRIBED HEREIN I5 SUBJECT TO ALL THE TERMS, EXCLUSIONS, AND CONDI-
TIONS OF SUCH POLICIES.
CO
LTR TYPE OF INSURANCE
GENERAL LIABILITY
A X COMMERCIAL GENERAL LIABILITY
CLAIMS MADE ®OCCURRENCE
OWNER S 8 CONTRACTORS PROTECTIVE
AUTOMOBILE LIABILITY
A ANY AUTO
ALL OWNED AUTOS
SCHEDULED AUTOS
HIRES AUTOS
NONAWNEO AUTOS
GARAGE LIABILITY
EXCESS LIABILITY
OTHER
OTHER THAN UMBRELLA FORM
WORKERS' COMPENSATION
AND
EMPLOYERS' LIABILITY
POLICY NUMBER
TPP 2049994$4
BUA 471!1010
POLICY EFFECTIVE
001E (MMGOIYIT
3 /31 /90
3/311/90
POLICY EXPIRATION
DATE (MMNOMT
3 /31/91
3/31 /91 $ 00
GENERAL AGGREGATE
PRODUCTS COMP/OPS AGGREGATE
PERSONAL P. ADVERTISING INJURY
EACH OCCURRENCE
FIRE DAMAG (ANY ONE FIRM
MEDICAL EXPENSE (ANY ONE PERSON)
STATUTORY
$
$
EACH
OCCURRENCE
DESCRIPTION OF OPERATIONS/ LOCATIONSIVEHICLESYRESTRICTIONS !SPECIAL ITEMS
Additional Insured - City of Round Rock Waiver of gubrogation
221 East Main St. City of Ro>Xnd Rock
Round Rock, Texas 7$664
AGGREGATE
,Oa tA34s Pile
(EACH ACCIDENT)
(DISEASE POLICY LIMIT)
(DISEASE EACH EMPLOYEE)
CANCELLATION , n . .c
SHOULD ANY OF THE ABOVE DESCRIBED POLICIES BE CANCELLED BEFORE THE EX.
PIRATION DATE THEREOF, THE ISSUING COMPANY WILL EiPagenala
MAIL 30 DAYS WRITTEN NOTICE TO THE CERTIFICATE HOLDER NAMED TO THE
LEFT, BUT FAILURE TO MAIL SUCH NOTICE SHALL IMPOSE NO OBLIGATION OR
LIABILITY OF ANY KIND UPON THE COMPANY, ITS AGENTS OR REPRESENTATIVES.
AUTHORIZED REE 8 SEN IVE �(
V ' a le m eJndURGYIWC'
,0 1IRlA C9R9C ORPORATI ON 1Bl ,
COMPANY B
LETTER
PRODUCER
Cen Tex Ins Agy
PO Box 397
Burnet, Texas 7$611
INSURED
Nelson Lewis, Inc.
314 Main
Marble. Falls, Texas 7$654
THIS CERTIFICATE I5 ISSUED AS A MATTER OF INFORMATION ONLY AND CONFERS
NO RIGHTS UPON THE CERTIFICATE HOLDER. THIS CERTIFICATE DOES NOT AMEND,
EXTEND OR ALTER THE COVERAGE AFFORDED BY THE POLICIES BELOW.
COMPANIES AFFORDING COVERAGE
LETTER COMPANY A CNA Insurance Company
COMPANY `.
LETTER
COMPANY D
LETTER
COMPANY E
LETTER
1
1
1
1
1
1
1
1
1
1
''!CP• 3118 -89)
Texas Workers' Compensation Assigned Risk Pool
8303 MoPac Expressway North —Suite 310 • Austin, Texas 78759 -8396 • (512) 345 - 1222
Date: I — 9,p
RE: Letter of Acknowledgement of Coverage
To Whom It May Concern:
Due to the mechanization of the functions of the Assigned Risk Pool, New and
Renewal Binders are now issued by computer.
This letter is evidence of binding of your Texas Workers' Compensation
coverage.
Name of Insured:
Effective Date of Coverage:
Servicing Company Assigned:
0 J) cvr, 0A, u. 'J) OfY1 C
I c)
Car o3
A thirty (30) day computer Binder will be issued and mailed to the insured,
agent, and servicing carrier.
The servicing carrier will issue the policy. For questions or service of this
account, we respectfully request that you contact them directly.
Texas Workers' Compensation Assigned Risk Pool
.4'2. 10 .. , 004
Examiner
66a Ptd. in US . 79. copyright 1987 Na:ionoi Council on Compensation Insurance INSURED'S COPY
0165
WC 00 00 014
TAC
C3 53 15 39 1
CIGNA INSURANCE COMPANY OF TEXAS
' ® New; ❑ Renewal; ❑ Rewrite
��/�
CIGNA
SYM
of:
PREVIOUS POLICY NO
"NCCI (aARRIER CODE: 15377
' WORKERS COMPENSATION AND EMPLOYERS
LIABILITY INSURANCE POLICY
INFORMATION PAGE
' Item 1. [NELSON LEWIS, INC. Inter /Intrastate Identification No.:BF #NONE
The
Insured P.O. BOX 217
MARBLE FALLS, TEXAS 78611 PRODUCER BILLED
Mailing ❑ Individual ❑ Partnership
Address LIELEPHONE # ( 512) 693 -5888 POOL #294948 ®Corporation ❑
Employer's Identification No.:
Other workplaces not shown above: AS PER ENDORSEMENT ATTACHED
Item 2. Policy period from 10 -31 -90 to 10 -31 -91 12:01 A.M., standard lime at the insured's mailing address.
Item 3. A.Workers Compensation Insurance: Part One of the policy applies to the Workers Compensation Law of the states listed here:
TEXAS
B. Employers Liability Insurance: Part Two of the policy applies to work in each state listed in Item 3.A.
The limits of our liability under Part Two are: Bodily Injury by Accident $ 100 , 000 each accident
Bodily Injury by Disease $ 500,000 policy limit
Bodily Injury by Disease $ 100,000 each employee
C. Other States Insurance: Part Three of the policy applies to the states, if any. listed here:
Item 4. The premium for this policy will be determined by our Manual of Rules, Classifications, Rates and Rating Plans. All information
required below is subject to verification and change by audit.
Classifications
Premium Basis
Rate
RTICLE 5.76 -1 OF THE TEXAS INSURANCE CODE REQUIRES
•ROVIDE AND MAINTAIN ACCIDENT PREVENTION FACILITIES
ONTACT YOUR INSURANCE COMPANY FOR FURTHER INFORMATION.
WATER MAIN CONSTR E D ,=
EXECUTIVE OFFICERS NOC— PERFORMING
CLERICAL OR OUTSIDE SALESPERSONS DUTIES
'ONLY
I 15 ?,POOL RATE DIFFERENTIAL
LOSS CONSTANT ( $10. IF APPLICABLE)
ESTIMATED STANDARD POLICY PREMIUM
(INCLUDED IN POLICY PREMIUM OF
Code
No.
6319
8809
$1756)
Estimated Total
Annual Remuneration
THAT YOUR
TO YOU THE
30000.
33000.
Per S100 of
Remuneration
INSURAN
POLICYHOLDER.
20.33
.78
Estimated
Annual Premium
E COMPANY
6099.
I 257.
952.
0.
7308.
Minimum Premium $ 500. Total Estimated Annual Premium $
f Indicated here, interim adjust— (PAGE 1'CONTINUED)
ents of premium will be made: ❑ Semi— Annually ❑ Quarterly XJ Monthly Deposit Premium $ 1671.
0030 420301A
This policy includes these endorsements and schedules: WC 000202 420306 000310 0 �0314
• GENCY NO. 9975BN 0 AUS
EN TEX INS AGY
.0. BOX 397
URNET TX 78611
EKE -42
�
Countersigned By .� � ��d(s�
(Authorized Agent)
MARKETING OFFICE:
TEXAS ASGN. RISK WC. 90316 DOC 6176A TAY
66a Ptd. in US . 79. copyright 1987 Na:ionoi Council on Compensation Insurance INSURED'S COPY
0165
WC 00 00 014
0117
opyright 1987 National Council on Compensation insurance INSURED'S COPY
WC 00 00 01A .
SYM
POLICY NUMBER
'
TAC
C3 53
15 39 1
® New; ❑ Renewal; ❑ Rewrite of;
CIGNA INSURANCE COMPANY OF TEXAS
SYM
PREVIOUS POLICY
NCCI CARRIER CODE: 15377 V�W'1
CIGNA.
1
NO.
WORKERS COMPENSATION AND EMPLOYERS
1 LIABILITY INSURANCE POLICY
INFORMATION PAGE
Item 1. NELSON LEWIS, INC. Inter /Intrastate Identification No.: BF#NONE
The
'insured P.O. BOX 217
MARBLE FALLS, TEXAS 78611 PRODUCER BILLED
Mailing ❑ individual ❑ Partnership
Address 'TELEPHONE #( 512) 693 -5888 POOL #294948 ® corporation ❑
_myti
Jth w places Iden not shown fication No.: above: AS PER ENDORSEMENT ATTACHED
tem 2. Policy period from 10 - 31 - 90 to 10 - 31 - 91 12:0 A.M., standard time at the Insured's mailing address.
tem 3. A.Workers Compensation Insurance: Part One of the policy applies to the Workers Compensation Law of the states listed here:
TEXAS
B. Employers Liability Insurance: Part Two of the policy applies to work in each state listed in Item 3 A
' The limits of our liability under Part Two are: Bodily Injury by Accident $ 100,000 each accident
Bodily Injury by Disease $ 500, 000 policy limit I
Bodily Injury by Disease $ 100 , 000 each employee
'
C. Other States Insurance: Part Three of the policy applies to the states, if any, listed here:
required below is subject to verification and change by audit.
I tem 4. The premium for this policy will be determined by our Manual of Rules, Classifications, Rates and Rating Plans. All information
Classifications
Premium Basis
Rate
'
EXPENSE CONSTANT
1
1
1
1
1
Code
No
0900
Estimated Total
Annual Remuneration
Per $100 of
Remuneration
Estimated
Annual Premium
85,
I inimum Premium $ 500. Total Estimated Annual Premium $
Indicated here, interim adjust— • ( PAGE 2 LAST PAGE )
nents of premium will be made: ❑ Semi Annually ❑ Quarterly ® Monthly Deposit Premium $ 1671.
,his policy includes these endorsements and schedules: WC 000202 420306 000310 000308 420301A
\GENCY NO. 9975BN 0 AUS
IfN TEX INS AGY
1
Countersigned By
1 10. BOX 397 •
URNET TX 78611
Cauthorlaet1 Agent/
MARKETING OFFICE.
TEXAS ASGN. RISK WC. 90316 DOC 6176A TAY
0117
opyright 1987 National Council on Compensation insurance INSURED'S COPY
WC 00 00 01A .
TYPE OF POLICY EFFECTIVE EXPIRATION LIMITS OF
INSURANCE NO. DATE DATE LIABILITY
CERTIFICATE OF INSURANCE
TO: City of Round Rock Date:
221 East Main Street Description of work:
Round Rock, Texas 78664
THIS IS TO CERTIFY THAT is, at the date of this
certificate, insured by this company with respect tb the business operations hereinafter
described, for the types of insurance and in accordance with the provisions of the standard
policies used by this company, and further hereinafter described. Exceptions to standard
polices are noted on the reverse side hereof.
Satutory, State
Workmen's of Texas,$
Compensation Employer's
Liability
Comprehensive Bodily Injury
General $ each person
Liability $ each person
Includes
Contractual
Liability
Covers Property Damage
Independent $ each accident
Contractors $ aggregate
Owner's Bodily Injury
Protective $ each person
$ each accident
Property Damage
$ each accident
$ aggregate
Comprehensive Bodily Injury
Automobile $ each person
Liability $ each accident
Owned
Vehicles Property Damage
Hired $ each accident
Vehicles
Non-owned
Vehicles
Includes
Contractual
Liability
certsns /6
PBD-6
CERTIFICATE OF INSURANCE (CONTINUED)
The above policies either in the body thereof or by appropriate endorsement provide that
they may not be changed or cancelled by the insurer in less than ten (10) days after the
insured has received written notice cf such change or cancellation.
This certificate of Insurance neither affirmatively cr negatively amends, extends, or alters
the coverage afforded by policy cr policies indicated by this r rtifi ate.
certins /6
(Name of Insurer)
By:
Title:
Address:
PBD-7
BOND NUMBER
That we,
MAINTENANCE BOND
AMOUNT
KNOW ALL MEN BY THESE PRESENTS,
(hereinafter called the "Principal ")
as principal, and the
a Corporation duly organized under the laws of the State of
and duly licensed to transact business in the State of
(hereinafter called the "Surety "), as Surety, are held and firmly bound unto
THE CITY OF ROUND ROCK, TEXAS (hereinafter called the "Obligee "), in the sum
of dollars ($ ) for the
payment of which sum well and truly to be made, we, the said Principal and
the said Surety, bind ourselves, our heirs, executors, administrators,
successors and assigns, jointly and severally, firmly by these presents.
Sealed with our seals an dated this day of
A.D. nineteen hundred and
WHEREAS, the said Principal has heretofore entered into a contract with
Dated , 19 , for construction of
WHEREAS, the said principal is required to guarantee the construction of all
improvements installed under said contract, against defects in materials or
workmanship, which may develop during the period of year(s) from
the date of acceptance of the project above described, by owner:
NOW, THEREFORE, THE CONDITIONS OF THE OBLIGATIONS IS SUCH, that if said
Principal shall faithfully carry out and perform the said guarantee, and
shall, on due notice, repair and make good at its own expense any and all
defects in materials or workmanship in the said work which may develop during
the period of year(s) from the date of acceptance of the project
above described, by owner:
Principal
by
maintbd /dh2
THE CITY OF ROUND ROCK, TEXAS
THE CITY OF ROUND ROCK, TEXAS
or shall pay over, make good and reimburse to the said Obligee all loss and
damage which said Obligee may sustain by reason of failure or default of said
Principal so to do, then this obligation shall be null and void; otherwise
shall remain in full force and effect.
PBD-8
Surety
by
4.0 GENERAL WNDITIONS
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Contents
1. Definition of Terms
1.01 Owner, Contractor and Engineer
1.02 Contract Documents
1.03 Sub - Contractor
1.04 Sub-Subcontractor
1.05 Written Notice
1.06 Work
. 1.07 Extra Work
1.08 Working Day
1.09 Calendar Day
1.10 Substantially Completed
2. Responsibilities of the Engineer and the Contractor
2.01 Owner - Engineer Relationship
2.02 Professional Inspection by Engineer
2.03 Payments for Work
2.04 Initial Determinations
2.05 Objections
2.06 Lines and Grades
2.07 Contractor's Duty and Superintendence
2.08 Contractor's Understanding
2.09 Character of Workmen
2.10 Contractor's Buildings
2.11 Sanitation
2.12 Shop Drawings
2.13 Preliminary Approval .
2.14 Defects and Their Remedies
2.15 Changes and Alterations
2.16 Inspectors
3. General Obligations and Responsibilities
3.01 Keeping of Plans and Specifications Accessible
3.02 Ownership of Drawings
3.03 Adequacy of Design
3.04 Right of Entry
3.05 Collateral Contracts
3.06 Discrepancies and Omissions
3.07 Equipment, Materials and Construction Plant
3.08 Damages
3.09 Protection Against Accident to Employees and the Public
3.10 Performance and Payment Bonds
3.11 Losses from Natural Causes
3.12 Protection of Adjoining. Property
General Conditions of Agreement
GC -1
3.13 Protection Against Claims of Sub - Contractors, etc.
3.14 Protection Against Royalties or Patented Invention
3.15 Laws and Ordinances
3.16 Assignment and Subletting
3.17 Indemnification
3.18 Insurance
3.19 Final Clean -Up
3.20 Guarantee Against Defective Work
4. Prosecution and Progress
4.01 Time and Order of Completion
4.02 Extension of Time
4.03 Hindrances and Delays
5. Measurement and Payment
5.01 Quantities and Measurements
5.02 Estimated Quantities
5.03 Price of Work
5.04 Partial Payments
5.05 Use of Completed Portions
5.06 Final Completion and Acceptance
5.07 Final Payment
5.08 Payments Withheld
5.09 Delayed Payments
6. Extra Work and Claims
6.01 Change Orders
6.02 Minor Changes
6.03 Extra Work
6.04 Time of Filing Claims
6.05 Arbitration
7. Abandonment of Contract
7.01 Abandonment by Contractor
7.02 Abandonment by Owner
8. Subcontractors
8.01 Award of Subcontracts for Portions of the Work
8.02 Subcontractual Relations
8.03 Payments to Subcontractors
9. Separate Contracts
9.01 Owner's Right to Award Separate Contracts
9.02 Mutual Responsibility of Contracts
9.03 Cutting and Patching Under Separate Contracts
10. Protection of Persons and Property
10.01 Safety Precautions and Programs
10.02 Safety of Persons and Property
10.03 Location and Protection of Utilities
GC -2
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1
General Conditions of Agreement
1. Definition of Terms
1.01 Owner, Contractor and Engineer
The Owner, the Contractor and the Engineer are those persons or organizations identified as such in the
Agreement and are referred to throughout the Contract Documents as if singular in number and mascu-
line in gender. The term Engineer means the Engineer or his duly authorized representative. The Engi-
neer shall be understood to be the Engineer of the Owner, and nothing contained in the Contract Docu-
ments shall create any contractual or agency relationship between the Engineer and the Contractor.
1.02 Contract Documents
The Contract Documents shall consist of the Notice to Contractors, Instructions to Bidders, Proposal,
Signed Agreement, Performance and Payment Bonds (when required), Special Bonds (when required),
General Conditions of the Agreement, Construction Specifications, Plans, and all modifications thereof
incorporated in any of the documents before the execution of the agreement.
The Contract Documents are complementary, and what is called for by any one shall be as binding as if
called for by all. In case of conflict between any of the Contract Documents, priority of interpretation
shall be in the following order: Signed Agreement, Performance and Payment Bonds, Special Bonds (if
any), Proposal, Special Conditions of Agreement, Notice to Contractors, Technical Specifications, Plans,
and General Conditions of Agreement.
1.03 Sub - contractor
The term Sub- Contractor, as employed herein, includes only those having a direct contract with the
Contractor and it includes one who furnishes material worked to a special design according to the plans
or specifications of this work, but does not include one who merely furnishes material not so worked.
1.04 Sub - subcontractor •
The term SubSubcontractor means one who has a direct or indirect contract with a sub-contractor to
perform any of the work at the site and includes one who furnishes material worked to a special design
according to the plans or specifications of this work, but does not include one who merely furnishes
material not so worked.
1.05 Written Notice
Written notice shall be deemed to have been duly served if delivered in person to the individual or to a
member of the firm or to an officer of the corporation for whom it is intended, or if delivered at or sent
by registered mail to the last business address known to him who gives the notice.
1.06 Work
The Contractor shall provide and pay for all materials, supplies, machinery, equipment, tools, superin-
tendence, labor, services, insurance, and all water, light, power, fuel, transportation and other facilities
necessary for the execution and completion of the work covered by the contract documents. Unless
otherwise specified, all materials shall be new and both workmanship and materials shall be of a good
quality. The Contractor shall if required, furnish satisfactory evidence as to the kind and quality of
GC-3
materials. Materials or work described in words which so applied have a well known technical or trade
meaning shall be held to refer to such recognized standards.
1
"Calendar Day" is any day of the week or month, no days being excepted.
1
1
1
The Engineer shall make periodic visits to the site to familiarize himself generally with the progress of
1.07 Extra Work
The term "Extra Work" as used in this contract shall be understood to mean and include all work that
may be required by the Engineer or Owner to be done by the Contractor to accomplish any change,
alteration or addition to the work shown upon the plans, or reasonably implied by the specifications, and
not covered by the Contractor's Proposal, except as provided under "Changes and Alterations," herein.
1.08 Working Day .
A "Working Day" is defined as any day not including Saturdays, Sundays or any legal holidays, in
which weather or other conditions, not under the control of the Contractor, will permit construction of
the principal units of the work for a period of not less than seven (7) hours between 7:00 a.m. and 6:00
p.m.
1.09 Calendar Day
1.10 Substantially Completed
By the term "substantially completed" is meant that the structure has been made suitable for use or oc-
cupancy or the facility is in condition to carve its intended purpose, but still may require minor miscel-
laneous work and adjustment.
2. Responsibilities of the Engineer and the Contractor
2.01 Owner - Engineer Relationship
The Engineer will be the Owner's representative during construction. The duties, responsibilities and
limitations of authority of the Engineer as the Owner's representative during construction are as set
forth in the Contract Documents and shall not be extended or limited without written consent of the
Owner and Engineer. The Engineer will advise and consult with the Owner, and all of Owner's instruc-
tions to the Contractor shall be issued through the Engineer.
2.02 Professional Inspection by Engineer
2.03 Payments for Work
The Engineer shall review Contractor's applications for payment and supporting data, determine the
amount owed to the Contractor and approve, in writing, payment to Contractor in such amounts; such
approval of payment to Contractor constitutes a representation to the Owner of Engineer's professional
GC-4
the executed work and to determine if such work generally meets the essential performance and design
features and the technical and functional engineering requirements of the Contract Documents; provided
and except, however, that the Engineer shall not be responsible for making any detailed, exhaustive,
comprehensive or continuous on -site inspection of the quality or quantity of the work or be in any way
responsible, directly or indirectly, for the construction means, methods, techniques, sequences, quality,
procedures, programs, safety precautions or lack of same incident thereto or in connection therewith.
Notwithstanding any other provision of this agreement or any other Contract Document, the Engineer
shall not be in any way responsible or liable for any acts, errors, omissions or negligence of the Contrac-
tor,
any subcontractor or any of the Contractor's or subcontractor's agents, servants or employees or
any other person, firm or corporation performing or attempting to perform any of the work.
I
J
1
1
judgment that the work has progressed to the point indicated to the best of his knowledge, information
and belief, but such approval of an application for payment to Contractor shall not be deemed as a repre-
sentation by Engineer that Engineer has made any examination to determine how or for what purpose
Contractor has used the moneys paid on account of the Contract price.
2.04 Initial Determinations
The Engineer initially shall determine all claims disputes and other matters in question between the
Contractor and the Owner relating to the execution or progress of the work or the interpretation of the
Contract Documents and the Engineer's decision shall be rendered in writing within a reasonable time,
which shall not be construed to be less than ten days, appeal to arbitration may be taken as if his deci-
sion had been rendered against the party appealing.
2.05 Objections
In the event the Engineer renders any decision which, in the opinion of either party hereto, is not in ac-
cordance with the meaning and intent of this contract, either party may file with the Engineer within
thirty days his written objection to the decision, and by such action may reserve the right to submit the
question so raised to arbitration as hereinafter provided.
2.06 Lines and Grades
Unless otherwise specified, all lines and grades shall be furnished by the Engineer or his representative.
Whenever necessary, construction work shall be suspended to permit performance of this work, but such
suspension will be as brief as practicable and the Contractor shall be allowed no extra compensation
therefor. The Contractor shall give the Engineer ample notice of the time and place where lines and
grades will be needed. All stakes, marks, etc., shall be carefully preserved by the Contractor, and in case
of careless destruction or removal by him or his employees, such stakes, marks, etc., shall be replaced at
the Contractor's expense.
2.07 Contractor's Duty and Superintendence
The Contractor shall give adequate attention to the faithful prosecution and completion of this contract
and shall keep on the work, during its progress, a competent English. speaking superintendent and any
necessary assistants to supervise and direct the work. The superintendent shall represent the Contractor
in his absence and all directions given to him shall be as binding as if given to the Contractor.
The Contractor is and at all times shall remain an independent contractor, solely responsible for the
manner and method of completing his work under this contract, with full power and authority to select
the means, method and manner of performing such work, so long as such methods do not adversely
affect the completed improvements, the Owner and Engineer being interested only in the result obtained
and conformity of such completed improvements to the plans, specifications and contract.
Likewise, the Contractor shall be solely responsible for the safety of himself, his employees and other
persons, as well as for the protection of the safety of the improvements being erected and the property of
himself or any other person, as a result of his operations hereunder. Engineering construction drawings
and specifications as well as any additional information concerning the work to be performed passing
from or through the Engineer shall not be interpreted as requiring or allowing Contractor to deviate
from the plans and specifications, the intent of such drawings, specifications and any other such instruc-
tions being to define with specificity the agreement of the parties as to the work the Contractor is to
perform. Contractor shall 'be fully and completely liable, at his own expense, for design, construction,
installation and use, or non -use, of all items and methods incident to performance of the contract, and
for all loss, damage or injury incident thereto, either to person or property, including, without limitation,
the adequacy of all temporary supports, shoring, bracing, scaffolding, machinery or equipment, safety
precautions or devices, and similar items or devices used by him during construction.
Any review of work in process, or any visit or observation during construction, or any clarification of
plans and specifications, by the Engineer or Owner, or any agent, employee, or representative of either
of them, whether through personal observation on the project site or by means of approval of shop draw-
= GC -5
1
ings for temporary construction or construction processes, or by other means or method, is agreed by
the Contractor to be for the purpose of observing the extent and nature of work completed or being per-
formed, as measured against the drawings and specifications constituting the contract, or for the
purpose of enabling Contractor to more fully understand the plans and specifications so that the com-
pleted construction work will conform thereto, and shall in no way relieve the Contractor from full and
complete responsibility for the proper performance of his work on the project, including but not limited
to the propriety of means and methods of the Contractor in performing said contract, and the adequacy
of any designs, plans or other facilities for accomplishing such performance. Deviation by the Contractor
from plans and specifications that may have been in evidence during any such visitation or observation
by the Engineer, or any of his representatives, whether called to the Contractor's attention or not shall
in no way relieve Contractor from his responsibility to complete all work in accordance with said plans
and specifications.
2.08 Contractor's Understanding
It is understood and agreed that the Contractor has, by careful examination, satisfied himself as to the
nature and location of the work, the conformation of the ground, the character, quality and quantity of
the materials to be encountered, the character of equipment and facilities needed preliminary to and
during the prosecution of the work, the general and local conditions, and all other matters which can in
any way affect the work under this contract. No verbal agreement or conversation with any officer,
agent or employee of the Owner or Engineer either before or after the execution of this contract, shall
affect or modify any of the terms or obligations herein contained.
2.09 Character of Workmen
The Contractor agrees to employ only orderly and competent men, skillful in the performance of the type
of work required under this contract, to do the work: and agrees that whenever the Engineer shall
inform him in writing that any man or men on the work are, in his opinion, incompetent, unfaithful or
disorderly, such man or men shall be discharged from the work and shall not again be employed on the
work without the Engineer's written consent. No illegal alien may be employed by any Contractor for
tst
work on this project, and a penalty of $500.00 per day will be assessed for each day and for each illegal
alien who works for the Coy, tractor at this project.
-2.10 Contractor's Buildings
The building of structures for housing men, or the erection of tents or other forms of protection, will be
permitted only at such places as the Engineer shall direct, and the sanitary conditions of the grounds in
or about such structures shall at all times be maintained in a manner satisfactory to the Engineer.
2.11 Sanitation
Necessary sanitary conveniences for the use of laborers on the work, properly secluded from public ob-
servation, shall be constructed and maintained by the Contractor in such manner and at such points as
shall be approved by the Engineer, and their use shall be strictly enforced.
2.12 Shop Drawings
The Contractor shall submit to the Engineer, with such promptness as to cause no delay in his own work
or in that of any other Contractor, four checked copies, unless otherwise specified, of all shop and /or set-
ting drawings and schedules required for the work of the various trades, and the Engineer shall pass
upon them with reasonable promptness, making desired corrections. The Contractor shall make any cor-
rections required by the Engineer, file with him two corrected copies and furnish such other copies as
may be needed. The Engineer's approval of such drawings or schedule shall not relieve the Contractor
from responsibility for deviations from drawings or specifications, unless he has in writing called the
Engineer's attention to such deviations at the time of submission, nor shall it relieve him from responsi-
bility for errors of any sort in shop drawings or schedules. It shall be the Contractor's responsibility to
fully and completely review all shop drawings to ascertain their effect on his ability to perform the
required contract work in accordance with the plans and specifications and within the contract time.
Such review by the Engineer shall be for the sole purpose of determining the sufficiency of said drawings
GC-6 a.r.r.r.rs
1
i
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1
1
1
1
1
i ,:,.:
as
1
1
or schedules to result in finished improvements in conformity with the plans and specifications, and
shall not relieve the Contractor of his duty as an independent contractor as previously set forth, it being
expressly understood and agreed that the Engineer does not assume any duty to pass upon the
propriety or adequacy of such drawings or schedules, or any means or methods reflected thereby, in rela-
tion to the safety of either person or property during Contractor's performance hereunder.
2.13 Preliminary Approval
The Engineer shall not have the power to waive the obligations of this contract for the furnishing by the
Contractor of good material, and of his performing good work as herein described, and in full accordance
with the plans and specifications. No failure or omission of the Engineer to discover, object to or
condemn any defective work or material shall release the Contractor from the obligations to fully and
properly perform the contract, including without limitations, the obligation to at once tear out, remove
and properly replace the same at any time prior to final acceptance upon the discovery of said defective
work or material; provided, however, that the Engineer shall, upon request of the Contractor, inspect
and accept or reject any material furnished, and in event the material has been once accepted by the
Engineer, such acceptance shall be binding on the Owner, unless it can be clearly shown that such
material furnished does not meet the specifications for this work.
Any questioned work may be ordered taken up or removed for re-examination, by the Engineer, prior to
final acceptance, and if found not in accordance with the plans and /or specifications for said work, all
expense of removing, re -examination and replacement shall be borne by the Contractor, otherwise the
expense thus incurred shall be allowed as Extra Work, and shall be paid for by the Owner: provided
that, where inspection or approval is specifically required by the specifications prior to performance of
certain work, should the Contractor proceed with such work without requesting prior inspection or
approval he shall bear all expense of taking up, removing, and replacing this work if so directed by the
Engineer.
2.14 Defects and Their Remedies
It is further agreed that if the work or any part thereof, or any material brought on the site of the work
for use in the work or selected for the same, shall be deemed by the Engineer as unsuitable or not in
conformity with the plans, specifications, or the intent thereof, the Contractor shall, after receipt of
written notice thereof from the Engineer, forthwith remove such material and rebuild or otherwise
remedy such work so that it shall be in full accordance with this contract.
2.15 Changes and Alterations
The Contractor further agrees that the Owner may make such changes and alterations as the Owner
may see fit, in the line, grade, form, dimensions, plans or materials for the work herein contemplated, or
any part thereof, either before or after the beginning of the construction, without affecting the validity
of this contract and the accompanying Performance and Payment Bonds.
If such changes or alterations diminish the quantity of the work to be done, they shall not constitute the
basis for a claim for damages, or anticipated profits on the work that may be dispensed with, except as
provided for unit price items under Section 5 "Measurement and Payment." If the amount of work is
increased, and the work can fairly be classified under the specifications, such increase shall be paid for
according to the quantity actually done and at the unit price, if any, established for such work under
this contract, except as provided for unit price items under Section 5 "Measurement and Payment ";
otherwise, such additional work shall be paid for as provided under Extra Work. In case the Owner shall
make such changes or alterations as shall make useless any work already done or material already
furnished or used in said work, then the Owner shall recompense the Contractor for any material or labor
so used, and for any actual loss occasioned by such change, due to actual expenses incurred in prepara-
tion for the work as originally planned. -
2.16 Inspectors
The Engineer may provide one (or more) field inspectors at the work site for the limited purpose of
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observing the work in progress and reporting back to the Engineer on the extent, nature, manner and
performance of the work so that the Engineer may more effectively perform his duties hereunder. Such
inspectors may also communicate between Engineer and Contrator their respective reports, opinions,
questions, answers and clarifications concerning the plans, specifications and work but shall be deemed
the agent of the Contractor for all purposes in communicating such matters.
Such inspector may confer with the Contractor or Contractor's superintendent concerning the prosecu-
tion of the work and its conformity with the plans and specifications but shall never be, in whole or part,
responsible for, charged with, nor shall he assume, any authority or responsibility for the means,
methods or manner of completing the work or of the superintendence of the work or of the Contractor's
employees. It is expressly understood and agreed that any such inspector is not authorized by the Engi-
neer or Owner to independently act for either or answer on behalf of either, any inquiries of the Con-
tractor concerning the plans, specifications or work. No inspector's opinion; advice; interpretation of the
plans or specifications of this contract; apparent or express approval of the means, methods or manner
of Contractor's performance of work in progress or completed; or discovery or failure to discover or
object to defective work of materials shall release Contractor from his duty to complete all work in strict
accordance with the plans and specifications or estop the Owner or Engineer from requiring that all
work be fully and properly performed including, if necessary, removal of defective or otherwise unaccep-
table work and the redoing of such work.
3. General Obligations and Responsibilities
3.01 Keeping of Plans and Specifications Accessible
The Engineer shall furnish the Contractor with an adequate and reasonable number of copies of all plans
and specifications without expense to him, and the Contractor shall keep one copy of the same con-
stantly accessible on the work, with the latest revisions noted thereon.
3.02 Ownership of Drawings
All drawings, specifications and copies thereof furnished by the Engineer shall not be reused on other
work, and, with the exception of the signed contract sets, are to be returned to him on request, at the
completion of the work. All models are the property of the Owner.
3.03 Adequacy of Design
It is understood that the Owner believes it has employed competent engineers and designers. It is there-
fore agreed that the Owner shall be responsible for the adequacy of the design, sufficiency of the
Contract Documents, the safety of the structure and the practicability of the operations of the
completed project; provided the Contractor has complied with the requirements of the said Contract
Documents, all approved modifications thereof, and additions and alterations thereto approved in
writing by the Owner. The burden of proof of such compliance shall be upon the Contractor to show that
he has complied with the said requirements of the Contract Documents, approved modifications thereof
and all approved additions and alterations thereto.
• 3.04 Right of Entry
The Owner reserves the right to enter the property or location on which the works herein contracted for
are to be constructed or installed, by such agent or agents as he may elect, for the purpose of inspecting
the work, or for the purpose of constructing or installing such collateral work as said Owner may desire.
3.05 Collateral Contracts
The Owner agrees to provide by separate contract or otherwise, all labor and material essential to the
completion of the work specifically excluded from this contract, in such manner as not to delay the
progress of the work, or damage said Contractor, except where such delays are specifically mentioned
elsewhere in the Contract Documents. The Owner will attempt to coordinate the collateral work of utility
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companies regulated by City franchises, but the City shall not be responsible for delays or other
damages to the Contractor which may result from their acts or omissions.
3.06 Discrepancies and Omissions
It is further agreed that it is the intent of this contract that all work must be done and all material must
be furnished in accordance with the generally accepted practice, and in the event of any discrepancies
between the separate contract documents, the priority of interpretation defined under "Contract Docu-
ments" shall govern. In the event that there is still any doubt as to the meaning and intent of any por-
tion of the contract, specifications or drawings, the Engineer shall define which is intended to apply to
the work.
3.07 Equipment, Materials and Construction Plant
The Contractor shall be responsible for the care, preservation, conservation, and protection of all mate-
rials, supplies, machinery, equipment, tools, apparatus, accessories, facilities, all means of construction.
and any and all parts of the work, whether the Contractor has been paid, partially paid, or not paid for
such work, until the entire work is completed and accepted.
3.08 Damages
In the event the Contractor is damaged in the course of completion of the work by the act, neglect, omis-
sion, mistake or default of the Owner or Engineer, thereby causing loss to the Contractor, the Owner
agrees that he will reimburse the Contractor for such loss. In the event the Owner is damaged in the
course of the work by the act, negligence, omission, mistake or default of the Contractor, or should the
Contractor unreasonably delay the progress of the work being done by others on the job so as to cause
loss for which the Owner becomes liable, then the Contractor shall reimburse the Owner for such loss.
3.09 Protection against Accident to Employees and the Public
The Contractor shall at all times exercise reasonable precautions for the safety of employees and others
on or near the work and shall comply with all applicable provisions of Federal, State, and Municipal
safety laws and building and construction codes. All machinery and equipment and other physical
hazards shall be guarded in accordance with the "Manual of Accident Prevention in Construction" of
the Associated General Contractors of America except where incompatible with Federal, State, or
Municipal laws or regulations. The Contractor shall provide such machinery guards, safe walkways,
ladders, bridges, gangplanks, and other safety devices. The safety precautions actually taken and their
adequacy shall be the sole responsibility of the Contractor, acting at his discretion as an independent
contractor.
3.10 Performance and Payment Bonds
Unless otherwise specified, it is further agreed by the Parties to the Ortract that the Contractor
will execute separate perfanarxe and payare nt tans, each in the sun of one taidred (1008) pmt
of the total ontract price, in standard forms for this purpose, guaranteeing faithful perfauenee
of the work and the fulfillment of any guarantee required, and further guaranteeing payment to all
persss .2rplying labor and materials or ft¢niting him any equipment in the execution of
the Ca If the =tract price is lei than $50,000.00, a letter of credit may be fivnithad
in lieu of a performance lard. It is agreed that the C.ntrac t stall not Le in effect until rut
performance bad (s) cr letter (s) of credit, and payment. bad (s) are furnished and approved bj
the miner.
Thiess otherwise specified, the oast of the premium for the performance bad or letters of credit,
and payment lxrn, doll be includes in the price bid by the a ntractrr for the wok crier this
Q retract, and no extra payment for sudn bads or letters of credit will be made by the Ownen
lhless otherwise approved in writing by the Owner, the surety O31any traerwriting the bands cc
letter of credit shall be aooeptable according to the latest list of carp ties holding certificates
of authority f ear. the Secretary of the Tceasay of the thited states and than be licersea
to write sxh ban a
s or letters of credit in the State of 1 s. GC -9
3.12 Losses from Natural Causes
•
Unless otherwise specified, all loss or damage to the Contractor arising out of the nature of the work to
be done, or from the action of the elements, or from any unforeseen circumstance in the prosecution of
the same, or from unusual obstructions or difficulties which may be encountered in the prosecution of
the work, shall be sustained and borne by the Contractor at his own cost and expense.
3.11 Protection of Adjoining Property
The said Contractor shall take proper means to protect the adjacent or adjoining property or properties
in any way encountered, which might be injured or seriously affected by any process of construction to
be undertaken under this Agreement, from any damage or injury by reason of said process of construc-
tion; and. he shall be liable for any and all claims for such damage on account of his failure to fully
protect all adjoining property. The Contractor agrees to indemnify, save and hold harmless the Owner
and Engineer against any claim or claims for damages due to any injury to any adjacent or adjoining
property, arising or growing out of the performance of the contract regardless of whether or not it is
caused in part by a party indemnified hereunder, but any such indemnity shall not apply to any claim of
any kind arising solely out of the existence or character of the work.
3.13 Protection against Claims of Sub - contractors, Laborers,
Materialmen and Furnishers of Machinery, Equipment and Supplies
The Contractor agrees that he will indemnify and save the Owner and Engineer harmless from all claims
growing out of the lawful demands of sub - contractors, laborers, workmen, mechanics, materialmen and
furnishers of machinery and parts thereof, equipment, power tools, and all supplies, including commis-
sary, incurred in the furtherance of the performance of this contract. When so desired by the Owner, the
Contractor shall furnish satisfactory evidence that all obligations of the nature hereinabove designated
have been paid, discharged or waived. If the Contractor fails to do so, then the Owner may at the option
of the Contractor either pay directly any unpaid bills, of which the Owner has written notice, or withhold
from the Contractor's unpaid compensation a sum of money deemed reasonably sufficient to liquidate
any and all such lawful claims until satisfactory evidence is furnished that all liabilities have been fully
discharged, whereupon payments to the Contractor shall be resumed in full, in accordance with the
terms of this contract, but in no event shall the provisions of this sentence be construed to impose any
obligation upon the Owner by either the Contractor or his Surety.
3.14 Protection against Royalties or Patented Invention
The Contractor shall pay all royalties and license fees, and shall provide for the use of any design,
device, material or process covered by letter patent or copyright by suitable legal agreement with the
patentee or owner. The Contractor shall defend all suits or claims for infringement of any patent or copy-
right rights and shall indemnify and save the Owner and Engineer harmless from any loss on account
thereof, except that the Owner shall defend all such suits and claims and shall be responsible for all such
loss when a particular design, device, material or process or the product of a particular manufacturer or
manufacturers is specified or required by the Onwer; provided, however, if choice of alternate design,
device, material or process is allowed to the Contractor, then Contractor shall indemnify and save Owner
harmless from any loss on account thereof. If the material or process specified or required by the Owner
is an infringement, the Contractor shall be responsible for such loss unless he promptly gives such
information to the Owner.
3.15 Laws and Ordinances
The Contractor shall at all times observe and comply with all Federal, State and local laws, ordinances
and regulations, which in any manner affect the contract or the work, and shall indemnify and save
harmless the Owner and Engineer against any claim arising from the violation of any such laws, ordi-
nances, and regulations whether by the Contractor or his employees, except where such violations are
called for by the provisions of the Contract Documents. If the Contractor observes that the plans and
specifications are at variance therewith, he shall promptly notify the Engineer in writing, and any neces-
sary changes shall be adjusted as provided in the contract for changes in the work. If the Contractor
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performs any work knowing it to be contrary to such laws, ordinances, rules and regulations, and with-
out such notice to the Engineer, he shall bear all costs arising therefrom. In case the Owner is a body
politic and corporate, the law from which it derives its powers, insofar as the same regulates the objects
for which, or the manner in which, or the conditions under which the Owner may enter into contract,
shall be controlling, and shall be considered as part of this contract, to the same effect as though
embodied herein.
3.16 Assignment and Subletting
The Contractor further agrees that he will retain personal control and will give his personal attention to
the fulfillment of this contract and that he will not assign by Power of Attorney, or otherwise, or sublet
said contract without the written consent of the Engineer, and that no part or feature of the work will be
sublet to anyone objectionable to the Engineer or the Owner. The Contractor further agrees that the
subletting of any portion or feature of the work, or materials required in the performance of this con-
tract, shall not relieve the Contractor from his full obligations to the Owner, as provided by this Agree-
ment.
3.17 Indemnification
The Contractor shall defend, indemnify and hold harmless the Owner and the Engineer and their respec-
tive officers, agents and employees, from and against all damages, claims, losses, demands, suits, judg-
ments and costs, including reasonable attorneys' fees and expenses, arising out of or resulting from the
performance of the work, provided that any such damages, claim, loss, demand, suit, judgment, cost or
expense:
(1) Is attributable to bodily injury, sickness, disease or death to any person including Contractor's
employees and any Subcontractor's employees and any Sub-Subcontractor's employees or to
• injury to or destruction of tangible property including Contractor's property (other than the
work itself) and the property of any Subcontractor or Sub-Subcontractor including the loss of
use resulting therefrom; and,
(2) Is caused in whole or in part by any intentional or negligent act or omission of the Contractor,
any Sub-Subcontractor, anyone directly or indirectly employed by any one of them or anyone
for whose acts any of them may be liable, regardless of whether or not it is caused in part by a
party indemnified hereunder.
The obligation of the Contractor under this Paragraph shall not extend to the liability of the Engineer,
his agents or employees arising out of the preparation or approval of maps, drawings, reports, surveys.
Change Orders, designs or specifications, or approval of maps, drawings, reports, surveys,-Change
Orders, designs or specifications, or the giving of or the failure to give directions or instructions by the
Engineer, his agents or employees, provided such giving or failure to give is the sole cause of the injury
or damage.
In any and all claims against the Owner or the Engineer or any of their agents or employees by any
employee of the Contractor, any Subcontractor, any Sub-Subcontractor, anyone directly or indirectly
employed by any of them or anyone for whose acts any of them may be liable, the indemnification obli-
gation under Paragraph 3.17 shall not be limited in any way by any limitation on the amount or type of
damages, compensation or benefits payable by or for the Contractor or any Sub - Contractor or Sub-
Subcontractor under workmen's compensation acts, disability benefit acts or other employee benefit
acts.
3.18 Insurance
The Contractor shall carry inurance as follows for the duration of this contract.
A. Statutory Workmen's Compensation
B. Comprehensive General Liability Insurance with minimum Bodily Injury limits of 5300,000 for
each occurrence including like coverage for acts and omissions of Subcontractors and
contractual liability coverage.
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C. Property Damage Insurance with minimum limits of $50,000 for each occurrence including like
coverage for acts -and omissions of Subcontractors and contractual liability coverage.
D. Automobile Liability Insurance for all owned, non - owned, and hired vehicles with minimum
limits for Bodily Injury of $100,000 for each person and $300,000 for each occurrence and
Property Damage minimum limits of $50,000 for each occurrence. Contractor shall require sub-
contractors to provide Automobile Liability Insurance with same minimum limits.
The Contractor shall not commence work at the site under this contract until he has obtained all re-
quired insurance and until such insurance has been approved by the Owner and Engineer. The Contrac-
tor shall not allow any Subcontractors to commence work until all insurance required has been obtained
and approved. Approval of the insurance by the Owner and Engineer shall not relieve or decrease the
liability of the Contractor hereunder.
The required insurance must be written by a company licensed to do business in Texas at the time the
policy is issued. In addition, the company must be acceptable to the Owner and all insurance (other than
workmen's compensation) shall be endorsed to include the Owner as an additional insured thereunder.
The Contractor shall not cause any insurance to be cancelled nor permit any insurance to lapse. All in-
surance certificates shall include a clause to the effect that the policy shall not be cancelled or reduced,
restricted or limited until ten (10) days after the Owner has received written notice as evidenced by
return receipt of registered or certified letter. Certificates of Insurance shall contain transcripts from the
proper office of the insurer, evidencing in particular those insured, the extent of the insurance, the loca-
tion and the operations to which the insurance applies, the expiration date, and the above mentioned
notice of cancellation clause.
3.19 Final Clean-up
Upon the completion of the work and before acceptance and final payment will be made, the Contractor
shall clean and remove from the site of the work, surplus and discarded materials, temporary structures
and debris of every kind. He shall leave the site of the work in a neat and orderly condition at least equal
to that which originally existed. Surplus and waste materials removed from the site of the work shall be
disposed of at locations satisfactory to the Engineer.
In the event Contractor fails or refuses to clean and remove surplus materials and debris as above
provided, the Owner or Engineer may do so, or cause same to be done, at the Contractor's expense and
the reasonable cost thereof shall be deducted from the final payment.
3.20 Guarantee Against Defective Work
The contractor warrants the materials and workmanship and that the work is in conformance with the
plans and specifications included in this contract for a period of one year from the date of acceptance of the
project. Said warranty binds the contractor to correct any work that does not conform with such plans and
specifications or any defects in workmanship or materials furnished under this contract which may be dis-
covered within the said one year period. The Contractor shall at his own expense correct such defect within
thirty days after receiving written notice of such defect from the Owner or Engineer by repairing same to
the condition called for in the contract documents and plans and specifications. Should the Contractor fail
or refuse to repair such defect within the said thirty day period or to provide acceptable assurances that
such repair work will be completed within a reasonable time thereafter, the Owner may repair or cause to
be repaired any such defect at the Contractor's expense.
3.21 Testing of Materials
Unless otherwise specified, testing of all materials to be incorporated into the project will be as directed by
the Engineer at the expense of the Owner. All retesting for work rejected on the basis of test results will be
at the expense of the Contractor and the extent of the retesting shall be determined by the Engineer. The
Engineer may require additional testing for failing tests and may require two passing retests before ac-
ceptance will be made by the Owner. The testing laboratory will be designated by the Owner.
All materials to be incorporated into the project must meet the requirements of these specifications. For
manufactured materials such as reinforcing steel, expansion joint materials, concrete pipe, cement, mis-
cellaneous steel, cast iron materials, etc., the Contractor will be required to furnish a manufacturer's cer-
tificate stating that the material meets the requirements specified for this project.
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4. Prosecution and Progress
4.01 Time and Order of Completion
It is the meaning and intent of this contract, unless otherwise herein specifically provided, that the Con-
tractor shall be allowed to prosecute his work at such times and seasons, in such order of precedence,
and in such manner as shall be most conducive to economy of construction; provided, however, that the
order and the time of prosecution shall be such that the work shall be substantially completed as a whole
and in part, in accordance with this contract, the plans and specifications, and within the time of com-
pletion designated in the Proposal; provided, also, that when the Owner is having other work done,
either by contract or by his own force, the Engineer may direct the time and manner of constructing the
work done under this contract, so that conflict will be avoided and the construction of the various works
being done for the Owner shall be harmonized.
The Contractor shall submit, at such times as may reasonably be requested by the Engineer, schedules
which shall show the order in which the Contractor proposes to carry on the work, with dates at which
the Contractor will start the several parts of the work, and estimated dates of completion of the several
parts.
4.02 Extension of Time
Should the Contractor be delayed in the completion of the work by any act or neglect of the Owner or
Engineer, or of any employee of either, or by other contractors employed by the Owner, or by changes
ordered in the work, or by strikes, lockouts, fires, and unusual delays by common carriers, or unavoid-
able cause or causes beyond the Contractor's control, or by any cause which the Engineer shall decide
justifies the delay, then an extension of time shall be allowed for completing the work, sufficient to com-
pensate for the delay, the amount of the extension to be determined by the Engineer, provided, however,
that the Contractor shall give the Engineer prompt notice in writing of the cause of such delay.
Frv2r veether osditions will rot be justification= for extension of tine on "CalerOar Lays" ca-tracts.
4.03 Hindrances and Delays .
No claims shall be made by the Contractor for damages resulting from hindrances or delays from any
cause (except where the work is stopped by order of and for the convenience of the Owner) during the
progress of any portion of the work embraced in this contract. In case said work shall be stopped by the
act of the Owner, then such expense as in the judgment of the Engineer is caused by such stoppage of
said work shall be paid by the Owner to the Contractor.
5. Measurement and Payment
5.01 Quantities and Measurements
No extra or customary measurements of any kind will be allowed, but the actual measured and /or com-
puted length, area, solid contents, number and weight only shall be considered, unless otherwise spe-
cifically provided.
5.02 Estimated Quantities
This agreement, including the specifications, plans and estimate, is intended to show clearly all work to
be done and material to be furnished hereunder. Where the estimated quantities are shown for the
various classes of work to be done and material to be furnished under this contract, they are approxi-
mate and are to be used only as a basis for estimating the probable cost of the work and for comparing
the proposals offered for the work. It is understood and agreed that the actual amount of work to be
done and material to be furnished under this contract may differ somewhat from these estimates, and
that where the basis for payment under this contract is the unit price method, payment shall be for the .
1 actual amount of such work done and the material furnished.
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Where payment is based on the unit price method, the Contractor agrees that he will make no claim for
damages, anticipated profits or otherwise on account of any differences which may be found between the
quantities of work actually done, the material actually furnished under this contract and the estimated
quantities contemplated and contained in the proposal; provided, however, that in case the actual quan-
tity of any major item should become as much as 20% more than, or 20% less than the estimated or con-
templated quantity for such items, then either party to this Agreement, upon demand, shall be entitled
to a revised consideration upon the portion of the work above or below 20% of the estimated quantity.
A "Major Item" shall be construed to be any individual bid item incurred in the proposal that has a
total cost equal to or greater than five (5) per cent of the total contract cost, computed on the basis of
the proposal quantities and the contract unit prices.
Any revised consideration is to be determined by agreement between the parties, otherwise by the terms
of this Agreement, as provided under "Extra Work."
5.03 Price of Work
In consideration of the furnishing of all the necessary labor, equipment and material, and the completion
of all work by the Contractor, and on the completion of all work and on the delivery of all material em-
braced in this Contract in full conformity with the specifications and stipulations herein contained, the
Owner agrees to pay the Contractor the prices set forth in the Proposal hereto attached, which has been
made a part of this contract. The Contractor hereby agrees to receive such prices in full for furnishing all
material and all labor required for the aforesaid work, also for all expense incurred by him, and for well
and truly performing the same and the whole thereof in the manner and according to this Agreement.
5.04 Partial Payments
On or before the 1st day of each month, the Contractor shall submit to the Engineer a statement showing
the total value of the work performed up to and including the 25th day of the preceding month. The state-
ment shall also include the value of all sound materials delivered on the job site and to be included in the
work all partially completed work whether bid as a lump sum or a unit item which in the opinion of the
Engineer is acceptable. The Engineer shall examine and approve or modify anrl approve such statement.
The Owner shall then pay the Contractor on or before the 20th day of the current month the total
amount of the approved statement, less 10 per cent of the amount thereof, which 10 per cent shall be
retained until final payment, and further less all previous payments and all further sums that may be
retained by the Owner under the terms of this Agreement. It is understood, however, that in case the
whole work be near to completion and some unexpected and unusual delay occurs due to no fault or
neglect on the part of the Contractor, the Owner may —upon written recommendation of the Engineer —
pay a reasonable and equitable portion of the retained percentage to the Contractor: or the Contractor at
the Owner's option, may be relieved of the obligation to fully complete the work and, thereupon, the
Contractor shall receive payment of the balance due him under the contract subject only to the condi-
tions stated under "Final Payment."
5.05 Use of Completed Portions
The Owner shall have the right to take possession of and use any completed or partially completed por-
tions of the work, notwithstanding the time for completing the entire work or such portions may not
have expired but such taking possession and use shall not be deemed an acceptance of any work not
completed in accordance with the Contract Documents. If such prior use increases the cost of or delays
the work, the Contractor shall be entitled to such extra compensation, or extension of time, or both, as
the Engineer may determine.
The Contractor shall notify the Engineer when, in the Contractor's opinion, the contract is "substan-
tially completed" and when so notifying the Engineer, the Contractor shall furnish to the Engineer in
writing a detailed list of unfinished work. The Engineer will review the Contractor's list of unfinished
work and will add thereto such items as the Contractor has failed to include. The "substantial comple-
tion" of the structure or facility shall not excuse the Contractor from performing all of the work under-
taken, whether of a minor or major nature, and thereby completing the structure or facility in accor-
dance with the Contract Documents.
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5.06 Final Completion and Acceptance
Within ten (10) days after the Contractor has given the Engineer written notice that the work has been
completed, or substantially completed, the Engineer and the Owner shall inspect the work and within
said time, if the work be found to be completed in accordance with the Contract Documents, the Engi-
neer shall issue to the Owner and the Contractor his Certificate of Completion, and thereupon it shall be
the duty of the Owner - to issue a Certificate of Acceptance of the work to the Con-
tractor or to advise the Contractor in writing of the reason for non - acceptance.
5.07 Final Payment
Upon the issuance of the Certificate of Completion, the Engineer shall proceed to make final measure-
ments arid prepare final statement for the value of all work performed and materials furnished under the
terms of the Agreement and shall certify same to the Owner, who shall pay to the Contractor on or
before the 30th day, and before the 35th day, after the date of the Certificate of Completion, the balance
due the Contractor under the terms of this contract; and said payment shall become due in any event
upon said performance by the Contractor. Neither the Certificate of Acceptance nor the final payment,
nor any provision in the Contract Documents, shall relieve the Contractor of the obligation for fulfill-
ment of any warranty which may be required.
5.08 Payments Withheld
The Owner may, on account of subsequently discovered evidence, withhold or nullify the whole or part
of any certificate to such extent as may be necessary to protect himself from loss on account of:
(a) Defective work not remedied or other obligations hereunder not done.
(b) Claims filed or reasonable evidence indicating probable filing of claims.
(c) Failure of the Contractor to make payments properly to subcontractors or for material or labor.
(d) Damage to another contractor.
(e) Reasonable doubt that the work can be completed for the unpaid balance of the contract amount.
(f) Reasonable indication that the work will not be completed within the contract time.
When the above grounds are removed or the Contractor provides a Surety Bond satisfactory to the
Owner, which will protect the Owner in the amount withheld, payment shall be made for amounts
withheld because of them.
5.09 Delayed Payments
Should the Owner fail to make payment to the Contractor of the sum named in any partial or final state-
ment, when payment is due, then the Owner shall pay to the Contractor, in addition to the sum shown as
due by such statement, interest thereon at the rate of 6% per annum, unless otherwise specified, from date
due as provided under 'partial payments' and 'final payments,' until fully paid, which shall fully liquidate
any injury to the contractor growing out of such delay in payment. It is expressly agreed that delay by the
Owner in making payment to the Contractor of the sum named in any partial or final statement shall not
constitute a breach of this contract on the part of the Owner nor an abandonment thereof nor shall it to
any extent or for any time relieve the Contractor of his obligations to fully and completely perform here.
under.
6. Extra Work and Claims
6.01 Change Orders
Without invalidating this Agreement, the Owner may, at any time or from time to time, order additions,
deletions or revisions to the work; such changes will be authorized by Change Order to be prepared by
the Engineer for execution by the Owner and the Contractor. The Change Order shall set forth the basis
for any change in contract price, as hereinafter set forth for Extra Work, and any change in contract
time which may result from the change.
Rey. 7.145
GC -15
In the event the Contractor shall refuse to execute a Change Order which has been prepared by the
Engineer and executed by the Owner, the Engineer may in writing instruct the Contractor to proceed
with the work as set forth in the Change Order and the Contractor may make claim against' the Owner
for Extra Work involved therein, as hereinafter provided.
6.02 Minor Changes
The Engineer may authorize minor changes in the work not inconsistent with the overall intent of the
Contract Documents and not involving an increase in Contract Price. If the Contractor believes that any
minor change or alteration authorized by the Engineer involves Extra Work and entitles him to an in-
crease in the Contract Price, the Contractor shall make written request to the Engineer for a written
Field Order.
In such case, the Contractor by copy of his communication to the Engineer or otherwise in writing shall
advise the Owner of his request to the Engineer for a written Field Order and that work involved may
result in an increase in the Contract Price.
Any request by the Contractor for a change in Contract Price shall be made prior to beginning the work
covered by the proposed change.
6.03 Extra Work
It is agreed that the basis of compensation to the Contractor for work either added or deleted by a
Change Order or for which a claim for Extra Work is made shall be determined by the unit prices upon
which this contract was bid to the extent such work can be fairly classified within the various work item
descriptions and for work items that cannot be so classified by one or more of the following methwds:
Method (A) •
By agreed unit prices; or
Method (B)
By agreed lump sum; or
Method (C)
If neither Method (A) nor Method (B) be agreed upon before the Extra Work is commenced,
then the Contractor shall be paid the "actual field cost" of the work, plus fifteen (15) percent.
In the event said Extra Work be performed and paid for under Method (C), then the provisions of this
paragraph shall apply and the "actual field cost" is hereby defined to include the cost to the Contractor
of all workmen, such as foreman, timekeepers, mechanics and laborers, and materials, supplies, trucks,
rentals on machinery and equipment, for the time actually employed or used on such Extra Work, plus
actual equipment, for the time actually employed or used on such Extra Work, plus actual transporta-
tion charges necessarily incurred, together with all power, fuel, lubricants, water and similar operating
expenses, also all necessary incidental expenses incurred directly on account of such Extra Work,
including Social Security, Old Age Benefits and other payroll taxes, and, a rateable proportion of
premiums on Performance and Payment Bonds and Maintenance Bonds, Public Liability and Property
Damage and Workmen's Compensation, and all other insurance as may be required by any law or
ordinance, or directed by the Owner, or by them agreed to. The Engineer may direct the form in which
accounts of the "actual field cost" shall be kept and the records of these accounts shall be made avail-
able to the Engineer. The Engineer or Owner may also specify in writing, before the work commences,
the method of doing the work and the type and kind of machinery and equipment to be used; otherwise
these matters shall be determined by the Contractor. Unless otherwise agreed upon, the prices for the
use of machinery and equipment shall be determined by using 100 per cent, unless otherwise specified, of
the latest schedule of Equipment Ownership Expense adopted by the Associated General Contractors of
America. Where practicable the terms and prices for the use of machinery and equipment shall be incor-
porated in the Written Extra Work Order. The fifteen (15 %) per cent of the "actual field cost" to be paid
the Contractor shall cover and compensate him for his profit, overhead, general superintendence and
field office expense, and all other elements of cost and expense not embraced within the "actual field
cost" as herein defined, save that where the Contractor's Camp or Field Office must be maintained pri-
GC -16
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warily on account of such Extra Work; then the cost to maintain and operate the same shall be included
in the "actual field post." .
No claim for Extra Work of any kind will be allowed unless ordered in writing by the Engineer. In case
any orders or instructions, either oral or written, appear to the Contractor to involve Extra Work for
which he should receive compensation or an adjustment in the construction time, he shall make written
request to the Engineer for written order authorizing such Extra Work. Should a difference of opinion
arise as to what does or does not constitute Extra Work, or as to the payment therefor, and the
Engineer insists upon its performance, the Contractor shall proceed with the work after making written
request for written order and shall keep an accurate account of the "actual field cost" thereof, as pro-
vided under Method (C). The Contractor will thereby preserve the right to submit the matter of
payment to arbitration, as hereinbelow provided.
6.04 Time of Filing Claims
It is further agreed by both parties hereto that all questions of dispute or adjustment presented by the
Contractor shall be in writing and filed with the Engineer within thirty (30) days after the Engineer has
given any directions, order or instruction to which the Contractor desires to take exception. The
Engineer shall reply within thirty (30) days to such written exceptions by the Contractor and render his
final decision in writing. In case the Contractor should appeal from the Engineer's decision, any demand
for arbitration shall be filed with the Engineer and the Owner in writing within ten (10) days after the
date of delivery to Contractor of the Engineer's final decision. It is further agreed that final acceptance
of the work by the Owner and the acceptance by the Contractor of the final payment shall be a bar to
any claims by either party, except claims by Owner for defective work or enforcement of warranties and
except as noted otherwise in the contract documents.
6.05 Arbitration
All questions of dispute under this Agreement shall be submitted to arbitration at the request of either
party to the dispute. The parties may agree upon one arbiter, otherwise, there shall be three, one named
in writing by each party, and the third chosen by the two arbiters so selected; or if the arbiters fail to
select a third within ten (10) days, he shall be chosen by a District Judge serving the County in which
the major portion of the project is located, unless otherwise specified. Should the party demanding
arbitration fail to name an arbiter within ten (10) days of the demand, his right to arbitrate shall lapse,
and the decision of the Engineer shall be final and binding on him. Should the other party fail to choose
an arbiter within ten (10) days, the Engineer shall appoint such arbiter. Should either party refuse or
neglect to supply the arbiters with any papers or information demanded in writing, the arbiters are
empowered by both parties to take ex parte proceedings.
The arbiters shall act with promptness. The decision of any two shall be binding on both parties to the
contract. The decision of the arbiters upon any questions submitted to arbitration under this contract
shall be a condition precedent to any right of legal action. The decision of the arbiter or arbiters may be
filed in court to carry it into effect.
The arbiters, if they deem the case demands it, are authorized to award the party whose contention is
sustained, such sums as they deem proper for the time, expense and trouble incident to the appeal, and
if the appeal was taken without reasonable cause, they may award damages for any delay occasioned
thereby. The arbiters shall fix their own compensation unless otherwise provided by agreement, and
shall assess the cost and charges of the arbitration upon either or both parties. The award of the arbiters
must be made in writing.
7. Abandonment of Contract
7.01 Abandonment by Contractor -
In case the Contractor should abandon and fail or refuse to resume work within ten (10) days after writ-
ten notification from the Owner, or the Engineer, or if the Contractor fails to comply with the orders of
GC.17
the Engineer, when such orders are consistent with the Contract Documents, then, and in that case,
where performance and payment bonds exist, the Sureties on these bonds shall be notified in writing and
directed to complete the work, and a copy of said notice shall be delivered to the Contractor.
After receiving said notice of abandonment the Contractor shall not remove from the work any machin-
ery, equipment, tools, materials or supplies then on the job, but the same, together with any materials
and equipment under contract for the work, may be held for use on the work by the Owner or the Surety
on the performance bond, or another contractor in completion of the work; and the Contractor shall not
receive any rental or credit therefor (except when used in connection with Extra Work, where credit shall
be allowed as provided for under Section 6, Extra Work and Claims), it being understood that the use of
such equipment and materials will ultimately reduce the cost to complete the work and be reflected in
the final settlement.
Where there is no performance bond provided or in case the Surety should fail to commence compliance
with the notice for completion hereinbefore provided for, within ten (10) days after service of such notice,
then the Owner may provide for completion of the work in either of the following elective manners:
(1) The Owner may thereupon employ such force of men and use such machinery, equipment, tools,
materials and supplies as said Owner may deem necessary to complete the work and charge
the expense of such labor, machinery, equipment, tools, materials and supplies to said Con-
tractor, and expense so charged shall be deducted and paid by the Owner out of such moneys
as may be due, or that may thereafter at any time become due to the Contractor under and
by virtue of this Agreement. In case such expense is less than the sum which would have
been payable under this contract, if the same had been completed by the Contractor, then
said Contractor shall receive the difference. In case such expense is greater than the sum
which would have been payable under this contract, if the same had been completed by said
Contractor, then the Contractor and /or his Surety shall pay the amount of such excess to the
Owner, or
(2) The Owner under competitive bids, taken after notice published as required by law, may let the
contract for the completion of the work under substantially the same terms and conditions
which are provided in this contract. In case there is any increase in cost to the Owner under
the new contract as compared to what would have been the cost under this contract, such
increase shall be charged to the Contractor and the Surety shall be and remain bound there-
for. However, should the cost to complete any such contract prove to be less than would
have been the cost to complete under this contract, the Contractor and /or his Surety shall
be credited therewith.
When the work shall have been substantially completed the Contractor and his Surety shall be so noti•
fied and Certificates of Completion and Acceptance, as provided in Paragraph 5.06 hereinabove, shall be
issued. A complete itemized statement of the contract accounts, certified to by the Engineer as being
correct, shall then be prepared and delivered to the Contractor and his Surety, whereupon the Con-
tractor and /or his Surety, or the Owner as the case may be, shall pay the balance due as reflected by
said statement, within fifteen (15) days after the date of such Certificate of Completion.
In the event the statement of accounts shows that the cost to complete the work is less than that which
wouldhave been the cost to the Owner had the work been completed by the Contractor under the terms
of this contract; or when the Contractor and /or his Surety shall pay the balance shown to be due by
them to the owner, then all machinery, equipment, tools, materials or supplies Left on the site of the
work shall be turned over to the Contractor and /or his Surety. Should the cost to complete the work
exceed the contract price, and the Contractor and /or his Surety fail to pay the amount due the Owner
within the time designated hereinabove, and there remains any machinery, equipment, tools, materials
or supplies on the site of the work, notice thereof, together with an itemized list of such equipment and
materials, shall be mailed to the Contractor and his Surety at the respective addresses designated in this
contract, provided, however, that actual written notice given in any manner will satisfy this condition.
After mailing, or other giving of such notice, such property shall be held at the risk of the Contractor
and his Surety subject only to the duty of the Owner to exercise ordinary care to protect such property.
After fifteen (15) days from the date of said notice the Owner may sell such machinery, equipment,
tools, materials or supplies and apply the net sum derived from such sale to the credit of the Contractor
and his Surety. Such sale may be made at either public or private sale, with or without notice, as the
GC -18
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Owner may elect. The Owner shall release any machinery, equipment, tools, materials, or supplies, which
remain on the work, and belong to persons other than the Contractor or his Surety, to their proper
owners. The books on all operations provided herein shall be opened to the Contractor and his Surety.
7.02 Abandonment by Owner
In case the Owner shall fail to comply with the terms of this contract, and should fail to comply with
said terms within ten (10) days after written notification by the Contractor, then the Contractor may
suspend or wholly abandon the work, and may remove therefrom all machinery, tools and equipment,
and all materials on the site of work that have not been included in payments to the Contractor and
have not been wrought into the work. And thereupon the Engineer shall make an estimate of the total
amount earned by the Contractor, which estimate shall include the value of all work actually completed
by said Contractor (at the prices stated in the attached proposal where unit prices are used), the value of .
all partially completed work at a fair and equitable price, and the amount of all Extra Work performed
at the prices agreed upon, or provided for by the terms of this contract, and a reasonable sum to cover
the cost of any provisions made by the Contractor to carry the whole work to completion and which
cannot be utilized. The Engineer shall then make a final statement of the balance due the Contractor by
deducting from the above estimate all previous payments by the Owner and all other sums that may be
retained by the Owner under the terms of this Agreement and shall certify same to the Owner who shall
pay to the Contractor on or before thirty (30) days after the date of the notification by the Contractor
the balance shown by said final statement as due the Contractor, under the terms of this Agreement.
8. Subcontractors
8.01 Award of Subcontracts for Portions of the Work
Unless otherwise specified in the Contract Documents or in the Instructions to Bidders, the Contractor,
as soon as practicable after the award of the Contract, shall furnish to the Engineer in writing for accep-
tance by the Owner and the Engineer a list of the names of the Subcontractors proposed for the
principal portions of the work. The Engineer shall promptly notify the Contractor in writing if either the
Owner or the Engineer, after due investigation, has reasonable objection to any Subcontractor on such
list and does not accept him. Failure of the Owner or Engineer to make objection promptly to any Sub-
contractor on the list shall constitute acceptance of such Subcontractor.
The Contractor shall not contract with any Subcontractor or any person or organization (including those
who are to furnish materials or equipment fabricated to a special design) proposed for portions of the
work designated in the Contract Documents or in the Instructions to Bidders or, if none is so desig-
nated, with any Subcontractor proposed for the principal portions of the work who has been rejected by
the Owner and the Engineer. The Contractor will not be required to contract with any Subcontractor or
person or organization against whom he has a reasonable objection.
If the Owner or Engineer refuses to accept any Subcontractor or person or organization on a list sub-
mitted by the Contractor in response to the requirements of the Contract Documents or the Instructions
to Bidders, the Contractor shall submit an acceptable substitute and the Contract amount shall be
increased or decreased by the difference in cost occasioned by such substitution and an appropriate
change order shall be issued; however, no increase in the Contract amount shall be allowed for any such
substitution unless the Contractor has acted promptly and responsively in submitting for acceptance
any list or lists of names as required by the Contract Documents or the Instructions to Bidders.
If the Owner or the Engineer requires a change of any proposed Subcontractor or person or organization
previously accepted by them, the Contract amount shall be increased or decreased by the difference in
cost occasioned by such change and an appropriate Change Order shall be issued.
The Contractor shall not make any substitution for any Subcontractor or person or organization who
has been accepted by the Owner and the Engineer, unless the substitution is acceptable to the Owner
and the Engineer.
'GC-19
8.02 Subcontractual Relations
All work performed for the Contractor by a Subcontractor shall be pursuant to an appropriate' written
agreement between the Contractor and the Subcontractor land where appropriate between Subcontrac-
tors and Sub - subcontractors) which shall contain provisions that:
(1) preserve and protect the rights of the Owner and Engineer under the Contract with respect to
the work to be performed under the subcontract so that the subcontracting thereof will not
prejudice such rights;
(2) require that such work be performed in accordance with the requirements of the Contract Docu-
ments;
(3) require submission to the Contractor of the applications for payment under each subcontract
to which the Contractor is a party, in reasonable time to enable the Contractor to apply for
payment in accordance with this contract;
(4) require that all claims for additional costs, extensions of time, damages for delays or otherwise
with respect to subcontracted portions of the work shall be submitted to the Contractor (via
any Subcontractor or Sub - subcontractor where appropriate) in sufficient time so that the
Contractor may comply in the manner provided in the Contract Documents for like claims
by the Contractor upon the Owner;
(5) obligate each subcontractor specifically to consent to the provisions of this section.
A copy of all such Subcontract Agreements shall be filed by the Contractor with the Engineer before the
Subcontractor shall be allowed to commence work.
9. Separate Contracts
9.01 Owner's Right to Award Separate Contracts
The Owner reserves the right to award other contracts in connection with other portions of the project
under these or similar conditions of the Contract.
When separate contracts are awarded for different portions of the Project, "The Contractor" in the
contract documents in each case shall be the contractor who signs each separate contract.
9.02 Mutual Responsibility of Contractors
The Contractor shall afford other contractors reasonable opportunity for the introduction and storage of
their materials and equipment and the execution of their work, and shall properly connect and coor-
dinate his work with theirs.
GC -20
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8.03 Payments to Subcontractors
The Contractor shall pay each Subcontractor, upon receipt of payment from the Owner, an amount
directly based upon the value of the work performed and allowed to the Contractor on account of such
Subcontractor's work, less the percentage retained from payments to the Contractor. The Contractor
shall also require each Subcontractor to make similar payments to his subcontractors.
If the Engineer fails to approve a payment for any cause which is the fault of the Contractor and not the
fault of a particular Subcontractor, the Contractor shall pay the Subcontractor on demand, made at any
time after the Certificate for Payment should otherwise have been issued, for his work to the extent com-
pleted, less the retained percentage.
The Engineer may, on request and at his discretion, furnish to any Subcontractor, if practicable,
information regarding percentages of completion certified to the Contractor on account of work done by
such Subcontractors.
Neither the Owner nor the Engineer shall have any obligation to pay or to see to the payment of any
moneys to such Subcontractor except as may otherwise be required.
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If any part of the Contractor's work depends for proper execution or results upon the work of any other
separate contractor, the Contractor shall inspect and promptly report to the Engineer any apparent
discrepancies or defects in such work that render it unsuitable for such proper execution and results.
Failure of the Contractor so to inspect and report shall constitute an acceptance of the other contractor's
work as fit and proper to receive his Work, except as to defects which may develop in the other separate
contractor's work after the'execution of the Contractor's Work.
Should the Contractor cause damage to the work or property of any separate contractor on the project,
the Contractor shall, upon due notice, settle with such other contractor by agreement or arbitration, if
he will so settle. If such separate contractor sues the Owner or initiates an arbitration proceeding on
account of any damage alleged to have been so sustained, the Owner shall notify the Contractor who
shall defend such proceedings at the Contractor's expense, and if any judgment or award against the
Owner arises therefrom the Contractor shall pay or satisfy it and shall reimburse the Owner for all
attorney's fees and court or arbitration costs which the Owner has incurred.
9.03 Cutting and Patching under Separate Contracts
• The Contractor shall be responsible for any cutting, fitting and patching that may be required to com-
plete his work except as otherwise specifically provided in the Contract Documents. The Contractor
shall not endanger any work of any other contractors by cutting, excavating or otherwise altering any
work and shall not cut or alter the work of any other contractor except with the written consent of the
Engineer.
Any costs caused by defective or ill-timed work shall be borne by the party responsible therefor.
10. Protection of Persons and Property
10.01 Safety Precautions and Programs
The Contractor shall be responsible for initiating, maintaining and supervising all safety precautions
and programs in connection with the work.
10.02 Safety of Persons and Property
The Contractor shall take all reasonable precautions for the safety of, and shall provide all reasonable
protection to prevent damage, injury, or loss to:
(1) all employees on the work and all other persons who may be affected thereby;
(2) all the work and all materials and equipment to be incorporated therein, whether in storage or
or off the site, under the care, custody or control of the Contractor or any of his
Subcontractors or SubSubcontractors; and
(3) other property at the site or adjacent thereto, including trees, shrubs, lawns, walks, pave-
ments, fences, roadways, structures and utilities not designated for removal, relocation or
replacement in the course of construction.
The Contractor shall comply with all applicable laws, ordinances, rules, regulations and lawful orders of
any public authority having jurisdiction for the safety of persons or property or to protect them from
damage, injury or loss. He shall erect and maintain, as required by existing conditions and progress of
the work, all reasonable safeguards for safety and protection, including posting danger signs and other
warnings against hazards, promulgating safety regulations and notifying owners and users of adjacent
utilities.
When the use or storage of explosives or other hazardous materials or equipment is necessary for the
execution of the work, the Contractor shall exercise the utmost care and shall carry on such activities
under the supervision of properly qualified personnel.
x...7.1.75
- GC -21
All Blasting, Including methods of storing and handling explosives and highly inflammable materials,
shall conform to Federal, State, Local Laws and Ordinances. All City Ordinances shall be complied with
even though some or all of the blasting is done outside the City Limits unless the applicable Ordinance is
in conflict with the law of the jurisdiction where the action is being taken.
The following is a list of requirements in addition to Federal, State, and Local Laws and Ordinances.
1. The Contractor shall furnish the City of Austin with a Certificate of Blasting Insurance in the
amount of $300,000.00 for each contract, at Least twenty.four hours prior to using explosives.
A blasting permit must be obtained from the City at least five (5) days prior to use of explo-
sives. If Blasting is covered under the Contractor's General Insurance Certificate for each
• contract, a separate blasting certificate will not be required.
2. The following public utility companies and City Department will be notified by the Contractor, on
every occasion, at least twenty -four (24) hours prior to the use of explosives: Water and
Wastewater, Electric, Gas, Telephone and the City Engineering Department.
3. Explosive materials to be used shall be limited to blasting agents and dynamite, unless prior ap-
proval of other materials is obtained in writing from the Engineering Department.
4. During blasting, all reasonable precautions shall be taken to protect pedestrians, passing vehicles,
and public or private property. Blasting mats or protective cover shall be used when required
by the City Inspector, the permit, or by safe blasting practices.
5. All explosives shall be stored in accordance with Chapter 38, Article 11, Section 38-11.201, of the
City Code.
6. The Director of Engineering orhis representative shall have the right to limit the use of explosives
and /or blasting methods which in his opinion are dangerous to the public or nearby property
of any kind.
7. The Contractor, at his expense, shall promptly repair or replace all items known to be damaged as
a result of blasting. All claims of damage shall be investigated by the City or by Consulting •
Firms approved by the City.
8. The Contractor shall maintain accurate records throughout the Blasting operations showing the
type explosive used, number of holes, pounds per hole, depth of hole, total pounds per shot,
delays used, date and time of blast and initials of the Inspector. The Contractor is fully re-
sponsible for all claims resulting from his blasting operation.
All damage or loss to any property referred to in this article caused in whole or in part by the Contrac-
tor, any Subcontractor, any Sub - subcontractor, or anyone directly or indirectly employed by any of
them, or by anyone for whose acts any of them may be liable, shall be remedied by the Contractor,
except damage or loss attributable solely to faulty Drawings or Specifications or solely to the acts or
omissions of the Owner or Engineer or anyone employed by either of them, and not attributable in any
degree to the fault or negligence of the Contractor.
The contractor shall designate a responsible member of his organization at the site whose duty shall be
the' prevention of accidents. This person shall be the Contractor's superintendent unless otherwise desig-
nated in writing by the Contractor to the Owner and the Engineer.
10.03 Location and Protection of Utilities
Notwithstanding any other provision of this contract, the Contractor shall be solely responsible for the
location and protection of any and all public utility lines and utility customer service lines in the work
area. The Contractor shall exercise due care to locate and to mark, uncover or otherwise protect all such
lines in the construction zone and any of the Contractor's work or storage areas. Upon request, the
Owner shall provide such information as it has about the location and grade of water, sewer, gas, and
telephone and electric lines and other utilities in the work area but such information shall not relieve or
be deemed to be in satisfaction of the Contractor's obligation hereunder, which shall be primary and
nondelegable. Any such lines damaged by the Contractor's operations shall be immediately repaired by
the Contractor or he shall cause such damage to be repaired at his expense.
GC -22
4.
Rev. 74.75
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5.0 SPECIAL CONDITIONS
SECTION 01- INFORMATION
01 -01 ENGINEER
The word "Engineer" in these Specifications shall be
understood as referring to the City of Round Rock, 221
East Main Street, Round Rock, Texas 78664, Engineer of the
Owner, or the Engineer's authorized representative to act in
any particular position for the Owner.
01 -02 COPIES OF PLANS AND SPECIFICATIONS FURNISHED
The Agreement will be prepared in not less than five (5)
counterpart (original signed) sets. Owner will furnish
Contractor two (2) sets of conforming Contract Documents,
Technical Specifications and Plans free of charge, and
additional sets will be obtained from the Engineer at
cannercial reproduction rates plus 20% for handling.
01 -03 GOVERNING CODES
All construction as provided for under these Plans and
Specifications shall be governed by any existing Resolutions,
Codes and Ordinances, and any subsequent amendments or
revisions thereto as set forth by the Owner.
01 -04 LIQUIDATED DAMAGES FOR FAILURE TO COMPLETE ON TIME
The Contractor agrees that time is of the essence for this
Contract and that the definite value of damages which would
result from delay would be incapable of ascertainment and
uncertain, so that for each day of delay beyond the number of
days herein agreed upon for the completion of the work herein
specified and contracted for, after due allowance for such
extension of time as is provided for under the provisions of
Section 4.02 of the General Conditions, the Owner may withold
permanently from the Contractor's total compensation, not as
penalty but as liquidated damages, the sum of $100.00 per
calendar day.
01 -05 LOCATION
specialc /2
The location of work shall be as mentioned in the Notice to
Bidders and as indicated on Plans.
SC -1
01 -06 , USAGE OF WATER
All water used during construction shall be provided by the
City. The City shall specify the location from which the
Contractor is to procure water. The Contractor shall be
responsible for providing all apparatus necessary for
procuring, storing, transporting and using water during
construction. The Contractor shall strive to use that amount
of water which is reasonable to perform the work associated
with this contract and shall endeavor to avoid excessive
waste. The Contractor will be required to pay for all water
used if it is found that unnecessary or excesive waste is
occurring during construction.
01 - PAY ESTIMATES
If pay estimates from the Contractor are not received by the
Engineer on or before the time specified in Section 5.04 of
the General Conditions, then the pay estimate will not be
processed and will be returned to Contractor.
SECTION 02- SPECIAL CONSIDERATIONS
02 -01 CROSSING UTILITIES
Prior to commencing the work associated with this contract,it
shall be the Contractor's responsibility to make arrangements
with the Owners of such utility companies to uncover their
particular utility lines or otherwise confirm their location.
Certain utility companies perform such services at their own
expense, however, where such is not the case, the Contractor
will cause such work to be done at his awn expense.
02 -02 UTILITY SERVICES FOR CONSTRUCTION
The Contractor will be responsible for providing his own
utility services while performing the work associated with
this contract. No additional payment will be made for this
item.
02 -03 GUARANTEES
The Contractor warrants the materials and workmanship and
that the work is in conformance with the plans and
specifications included in this contract for the period that
the Maintenance Bond, as outlined in Section 04 of the
Special Conditions, is in effect. Upon notice from Owner, the
Contractor shall repair defects in all construction or
materials which develop during specified period and at no
cost to Owner. Neither final acceptance, Certificate of
Completion, final payment ( continued next page)
specialc /2
SC -2
-nor any provision in Contract Documents relieves Contractor
of above guarantee. Notice of observed defects will be given
with reasonable promptness. Failure to repair or replace
defect upon notice entitles Owner to repair or replace same
and recover reasonable cost thereof from Contractor.
02 -04 M NIMIJM WAGE SCALE
Minimum wage scale as specified and regulated by the State of
Texas and the Federal Government.
02 -05 LIMIT OF FINANCIAL RESOURCES
The Owner has a limited amount of financial resources
carmitted to this Project; therefore, it shall be understood
by all bidders that the Owner may be required to change
and/or delete any items which he may feel is necessary to
accomplish all or part of the scope of work within its limit
of financial resources. Contractor shall be entitled to no
claim for damages for anticipated profits on any portion of
work that may be omitted. At any time during the duration of
this contract, the Owner reserves the right to snit any work
from this contract. Unit prices for all items previously
approved in this contract shall be used to delete or add work
per change order.
02 -06 CONSTRUCTION REVIEW
The Owner shall provide a project representative to review
the quality of materials and workmanship.
02 -07 LIMITS OF WORK AND PAYMENT
It shall be the obligation of the Contractor to wupiete all
work included in this contract, so authorized by the Owner,
as described in the contract documents and technical
specifications. All items of work not specifically paid for
in the bid proposal shall be included in the unit price bids.
Any question arising as to the limits of work shall be left
up to the interpretation of the Engineer.
02 -08 PAYMENT FOR MATERIALS ON NAND
Owner will not pay for materials on hand. Payment will be
made for work completed in accordance with monthly estimate
procedure stipulated in the General Conditions of the
Agreement.
specialc /2
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02 -09 . "AS- BUILTS" DRAWINGS
The Contractor shall mark all changes and revisions on all of
his copies of the working drawings during the course of the
Project as they occur. Upon completion of the Project and
prior to final acceptance and payment, the Contractor shall
submit to the Engineer one set of his working drawings, dated
and signed by himself and his project superintendent and
]ailed as "As-Builts ", that shows all changes and revisions
outlined above and that shows field locations of all above
ground appurtenances including but not limited to valves, fire
hydrants and manholes. These as -built drawings shall become
the property of the Owner. Each appurtenance shall be
located by at ]east two (2) horizontal distances measured
from existing, aacily identifiahle, immovable appurtenances
such as fire hydrants or valves. Property pins can be used for
as- builts tie -ins provided no existing utilities as previously
described are available. Costs for delivering as -built drawings
sha]1 be subsidiary to other bid items.
02 -10 LAND FOR WORK
Owner provides, as indicated on Drawings, land upon which
work is to be done, right-of-way for access to same and such
other ]ands which are designated for use of Contractor.
Contractor provides, at his expense and without liability of
Owner, any additional land and access thereto that may be
required for his construction operations, temporary
construction facilities, or for storage of materials.
02 -11 DEVIATIONS OCCASIONED BY UTILITY STRUCTURES
Whenever existing utilitues, not indicated on Plans, present
obstructions to grade and alignment of proposed,
improvements immediately notify engineer, who without delay,
will determine if existing utilities are to be relocated, or
grade and alignment of proposed improvements changed.
Where necessary to move existing services, poles, guy wires,
pipelines, etc., as determined by the Engineer, the Contractor
will make arrangements with the owner of the utility to be
moved and have it moved. The costs of any utility relocations
will be at the Contractor's sole expense. Owner will not be
liable for relocations casts or damages on account of delays
due to changes made by owners of privately owned utilities
which hinder progress of the work.
SC-4
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02 -12 - CONSTRUCTION STAKING
All construction staking required to complete the work
associated with this contract shall be provided by the
Contractor. The Contractor shall be responsible for
determining the layout and extent of staking necessary to
construct the improvements to the lines and grades shown in
the Plans. This item shall not be paid for separately and shall
be considered subsidiary to other bid items
SECTION 03- TRAFFIC CONTROL
Access shall be provided for residents and emergency vehicles
at all times. When it becomes necessary to restrict access,
the Contractor shall notify all applicable agencies (ie. Fire
Department, E.M.S., Public Works, etc.). At the end of each
day two lanes of traffic shall be opened to the public. The
Contractor shall be responsible for all maintenance, signing
and safety precautions necessary for traffic controL This
item shall be considered subsidiary to other bid items and no
additional compensation shall be given for complying with this
Special Condition.
SECTION 04 MAINTENANCE BOND
Per city of Round Rock Ordinance, a two (2) year
Maintenance Bond naming the City of Round Rock as obligee
will be required for public streets constructed without lime
stabilization of subgrade matPrisl when the Plasticity Index
of the subgrade is above 24. Maintenance Bond shall remain
in effect for two (2) years from date of City of Round Rock
acceptance of improvements.
A one (1) year Mainteance Bond in the amount of one
hundred (100%) percent of the cou(iact price will be required
for all other improvements and shall be submitted prior to
final payment. Such bonds shall be from an approved surety
company holding a permit from the State of Texas to act as
surety (and acceptable according to the latest list of
companies holding certificates of authority from the Security
of the Treasury of the United States) or other surety or
sureties acceptable to the Owner prior to final payment.
constk/4
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SECTION 5 INSURANCE
Section 3.18 of-the General Conditions of the Agreement is hereby
amended to include the following:
3.18 Insurance
Contractor shall carry insurance in the following types and
amounts for the duration of this Contract, which shall include
items owned by Owner in care, custody and control of Contractor
prior and during construction and warranty period, and furnish
Certificates of Insurance along with copies of policy
declaration pages and all policy endorsements as evidence
thereof:
a. Statutory Workers' Compensation and minimum $100,000
Employers Liability Insurance.
b. Commercial General Liability Insurance with minimum
limits of $500,000 per occurrence and $1,000,000
Aggregate or $500,000 for this designated project and
$100,000 Fire Damage.
c. Automobile Liability Insurance for all owned, nonowned
and hired vehicles with minimum limits for Bodily
Injury of $250,000 for each person and $500,000 for
each occurrence and Property Damage limits of $100,000
or a Combined'Single Limit of $600,000.
d. On all new or remodeling building projects; All Risk
Builders Risk Insurance for insurable building
projects shall be insured in the amount bf the
contract price for such improvements'. Owner and
Contractor waive all rights against each other for
damages caused by fire or other perils to the extent
covered by Builders Risk Insurance required under this
section, except as to such rights as they may have in
the proceeds of such insurance. Contractor shall
require similar waivers by Subcontractors and
Sub - subcontractors.
e. Owner and Contractor's Protective, Policy. The
Contractor shall provide and maintain during the life
of this contract and until all work under said
contract has been completed and accepted by the Owner,
an Owner's and Contractor's Protective Policy which
co- insures the Owner and the Owner's agents and
employees with the same Commercial General Liability
coverage as described above, entitled "Commercial
General Liability Insurance."
When offsite storage is permitted, policy will be endorsed for
transit and off site storage in amounts sufficient to protect
property being transported or stored.
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This insurance shall include, as insured, City of Round Rock,
Contractor, Subcontractors and Sub - subcontractors in the work,
as their respective interest may appear.
If insurance policies are not written for amount specified in b.
and c. above, Contractor is required to carry an Excess
Liability Insurance Policy for any difference in amounts
specified.
Contractor shall be responsible for deductibles and self insured
retentions, if any, stated in policies. Any self.insured
retention shall not exceed ten percent of minimum required
limits. All deftibles or self insured retentions shall be
disclosed on Certificate of Insurance required above.
Contractor shall not commence work at site under this Contract
until he has obtained required insurance and until such
insurance has been reviewed by Owner's Contract Administration
Office. Contractor shall not allow any Subcontractors to
commence work until insurance required has been obtained and
approved. Approval of insurance by Owner shall not relieve or
decrease liability of Contractor hereunder.
Insurance to be written by a company licensed to do business in
the State of Texas at the time policy is issued and acceptable
to Owner.
Contractor shall produce an endorsement to each effected policy:
1. Naming City of Round Rock, 221 East Main Street, Round
Rock, Texas 78664 as additional insured (except
Workers' Compensation and Builders Risk).
2. That obligates the insurance company to notify Joanne
Land, City Secretary, City of Round Rock, 221 East
Main Street, Round Rock, Texas 78664 of any and all
changes to policy 30 days prior to change.
That the "other" insurance clause shall not apply to
Owner where City of Round Rock is an additional
insured shown on policy. It is intended that policies
required in this agreement, covering both Owner and
Contractor, shall be considered primary coverage as
applicable.
Contractor shall not cause any insurance to be canceled nor
permit any insurance to lapse during term of this Contract or as
required in the Contract.
If Contractor is underwritten on a claim -made basis, the
retroactive date shall be prior to, or coincident with, the date
of this Contract and the Certificate of Insurance shall state
that coverage is claims made and also the retroactive date.
Contractor shall maintain coverage for duration of this Contract
and for two years following completion of this Contract.
3.
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Contractor shall provide the City annually a Certificate pf
Insurance -as evidence of such insurance. It is further agreed
that Contractor shall provide Owner a 30 day notice of aggregate
erosion, an advance of the retroactive date, cancellation and /or
renewal.
It is also agreed that Contractor will invoke the tail option at
request of Owner and the Extended Reporting Period,(ERP) premium
shall be paid by Contractor.
Owner reserves the right to review insurance requirements of
this section during effective period of the Contract and to make
reasonable adjustments to insurance coverages and their limits
when deemed necessary and prudent by Owner based upon changes in
statutory law, court decisions or the claims history of the
industry as well as Contractor.
Owner shall be entitled, upon request, and without expene, to
receive copies of policies and all endorsements thereto and may
make any reasonable requests for deletion or revision or
modification of particular policy terms, conditions, limitations
or exclusions, except where policy provisions are established by
law or regulation binding upon either of the parties hereto or
the underwriter on any of such policies.
Actual losses not covered by insurance as required by this
section shall be paid by Contractor.
6.0 TECHNICAL SPECIFICATIONS
ITEM 1
1.01
(techspec /6)
- GENERAL DESCRIPTION
SCOPE OF WORK
The work covered by these Specifications consists of
furnishing all labor, equipment, appliances, materials and
performing all operations in connection with the installation
of utility adjustment improvements complete in accordance
with the Plans, and subject to the terms and conditions of the
Contract Documents.
1.02 GOVERNING TECHNICAL SPECIFICATIONS
STREET, WATER, SEWER AND DRAINAGE IMPROVEMENTS
The current City of Austin Standard Specifications as adopted
and amended by the City of Round Rock and the current City of
Austin Erosion and Sedimentation Control Manual, are
incorporated into this project and they shall be applied to
this project except as modified in these Specifications and on
the Plans.
Wherever the term "City of Austin" is used in the Austin
Specifications, it shall be construed to mean City of Round
Rock.
Wherever the term "Engineer" is used in the Austin
Specifications, it shall be construed to mean the City of
Round Rock, Texas.
ITEM 2 CONTROL OF WORK
2.01 CLEAN -UP
2.01.1 CONSTRUCTION SITE
During construction the Contractor shall keep the site free
and clean from all rubbish and debris and shall clean-up the
site promptly when notified to do so by the Engineer.
The Contractor shall, at his own expense, maintain the streets
and roads free from dust, mud, excess earth or debris which
constitutes a nuisance or danger to the public using the
thoroughfare, or the occupants of adjacent properties.
Care shall be taken to prevent spillage on streets and roads
over which hauling is done, and any such spillage or debris
deposited on streets, due to the Contractor's operations,
shall be immediately removed.
TS -1
2.01.2 - BACKWORK
The Contractor shall coordinate his operations in such a
manner as to prevent the amount of clean-up and canpletion of
back works from becoming excessive. Should such a condition
exist, the Engineer may order all or portions of the work to
cease and refuse to allow any work to carnence until the back
work is done to the Engineer's satisfaction.
2.02 GRADING
The Contractor shall do such grading in and adjacent to
the construction area associated with this contract as may be
necessary to leave such areas in a neat and satisfactory
condition approved by the Engineer.
ITEM 3 EXAMINATION AND REVIEW
3.01 EXANIINATION OF WORK
The work covered under this Contract shall be examined and
reviewed by the Engineer, representatives of all governmental
entities which have jurisdiction, and the Owner's authorized
representative. The quality of material and the quality of
installation of the improvements shall be to the satisfaction
of the Engineer. It shall be the Contractor's responsibility
for the construction methods and safety precautions in the
undertaking of this Contract.
3.02 NOTIFICATION
The Engineer and Owner must be notified a minimum of 24 -hours
in advance of beginning construction, testing, or requiring
presence of the Engineer, project representative, or Owner's
representative.
3.03 CONSTRUCTION STAKING
The Engineer shall furnish the Contractor reference points and
benchmarks for utility adjustments as necessary.
3.04 PROTECTION OF STAKES, MARKS, ETC.
A11 engineering and surveyor's stakes, marks, property
corners, etc., shall be carefully preserved by the Contractor,
and in case of destruction or removal during the course of
this project, such stakes, marks, property corners, etc.,
shall be replaced by the Contractor at the Contractor's sole
expense.
(techspec /6)
TS -2
ITEM 4 .PROTECTION AND PRECAUTION
4.01 WORK IN FREEZING WEATHER
Portions of the work may continue as directed by the Engineer.
4.02 PROTECTION? OF TREES, PLANTS AND SHRUBS
The Contractor shall take necessary precautions to preserve
all existing trees, plants and shrubs but where it is
justifiable and necessary the Contractor may remove trees and
plants for construction right- of-way but only with approval of
the Engineer.
4.03 TRAFFIC CONTROL MEASURES AND BARRICADES
Traffic control measures and barricades shall be installed in
accordance with the Texas Manual of Uniform Traffic Control
Devices and in other locations deemed necessary ' by the
Engineer, for the protection life and property. Under no
circumstances will any existing road be permitted to remain
closed over a weekend. No separate pay will be made for this
item. Costs for this item shall be subsidiary to other items
of work.
4.04 PROPERTY LINES AND MONUMENTS
The Contractor shall be responsible for the protection,
reference and resetting of property corner monuments if
disturbed.
4.05 DISPOSAL OF SURPLUS MATERIAL
The Contractor shall at his own expense, make arrangement for
the disposal of surplus material, such as rock, trees, brush
and other unwanted backfill materials.
4.06 CONTRACTOR'S USE OF PREMISES
The Contractor shall, at his own expense, provide additional
space as necessary for his operations and storage of
materials.
ITEM 5 MATERIALS
5.01 TRADE NAMES
Except as specified otherwise, wherever in the specifications
an article or class of material is designated by a trade name
or by the name or catalog number of any maker, patentee,
manufacturer, or dealer, such designations shall be taken as
(techspec /6)
TS -3
- intending to mean and specify the articles described or
another equal thereto in quality, finish, and serviceability
for the purpose intended, as may be determined and judged by
the Engineer in his sole discretion.
5.02 MATERIALS AND WORENANSHIP
No material which has been used by the Contractor for any
temporary purpose whatever is to be incorporated in the
permanent structure without the written consent of the
Engineer. Where materials or equipment are specified by a
trade or brand name, it is not the intention of the owner to
discriminate against an equal product of another manufacturer,
but rather to set a definite standard of quality for
performance, and to establish an equal basis for the
evaluation of bids. Where the words "equivalent ", "proper" or
"equal to" are used, they shall be understood to mean that the
item referred to shall be "proper ", the "equivalent" of, or
"equal to" some other item, in the opinion or judgement of the .
Engineer. Unless otherwise specified, all materials shall be
the best of their respective kinds and shall be in all cases
fully equal to approved samples. Notwithstanding that the
words "or equal to" or other such expressions may be used in
the specifications in connection with a material, manufactured
article or process, the material, article or process
specifically designated shall be used, unless a substitute is
approved in writing by the Engineer, and the Engineer will
have the right to require the use of such specifically
designated material, article or process.
ITEM 6 RESTORATION, REVEGETATION, AND EROSION CONTROL MFASURFG
This item shall govern the furnishing, placing, maintaining
and removal of all erosion control measures, site work,
restoration work, grading, shaping and seeding for all
disturbed areas.
(techspec /6)
Temporary erosion control measures shall include but not be
limited to: Silt Fences, Rock Berms, land Grading and Storm
Inlet Sediment Traps.
The Contractor is alerted to the fact that his construction
operations may cause undue sedimentation at various locations
and erosion of the land in an around the constuction area.
Such areas of erosion and sedimentation are difficult to
predict and are best determined in the field as construction
progresses. The Contractor should be aware that such areas of
erosion and sedimentation generally include but are not
limited to: drainage outlets, steep slopes and in areas where
TS -4
- vegetation has been removed. The Contractor should be prepared
to take remedial measures and to install erosion and
sedimentation control devices as necessary to correct all
adverse erosion and sedimentation.
The extent and location of erosion control neasureshall be
as determined in the field by the Engineer or his designated
representative. The contractor shall be responsible for
providing all materials, labor and equipment necessary for the
construction of erosion control measures. The Contractor shall
maintain all erosion control neasures until final acceptance
and shall remove them after final acceptance of the project.
The restoration of disturbed areas and spoil sites shall
include spreading of topsoil and shaping; replacement of road
base (where applicable); and, revegetation (where applicable).
This item will not be measured and paid for separately. Costs
for this item shall be subsidiary to other items of work.
ITEM 7 CONCRETE STRUCTURES AND MISCELLANEOUS CONCRETE
(Series 400)
This item shall govern furnishing, forming, placing, curing
and finishing of concrete including all necessary structural
excavation for the placement of structures or foundation
courses.
This item will not be measured and paid for separately. Costs
for this item shall be subsidiary to other items of work.
ITEM 8 WATER LINE ADJUSTMENTS (SERIES 500)
8.01 MATERIALS
Unless otherwise approved by the Engineer:
8.02 CONSTRUCTION
Unless otherwise approved by the Engineer:
(techspec /6)
All pipe and fittings shall be ductile iron in accordance with
AWWA C -100, minimum Class 50.
A11- thread rods shall be minimum 36 ksi steel, minimum 3/4"
diameter.
While still in service, the existing water line to be adjusted
shall be exposed at either end between which new piping will
TS -5
(eight02 /4)
be installed. The existing line shall be exposed in such a
manner so that a determination may be made as to the
distance between the proposed severing point and any
existing pipe joint or coupling device. Existing pipe shall not
be severed within three (3') feet of any existing joint or
coupling device. If it is found that the proposed ravening
point will be less than three (3') feet from an existing joint
or coupling device, the severing point shall be located beyond
such joint or device and shall be at such a point that it will
be greater than three (3') feet from the next existing joint or
coupling device. The Contractor shall be responsible for
providing and installing any required M 0 A pile segments,
such segments to replace existing pipe in order to effect
severing point location requirements.
After severing points have been determined for a given
installation, the Contractor shall assemble all proposed pipe
and fittings above ground in such a manner that installation
will be facilitated and that the time that the existing main
will be out of service will be kept at a minimum. The
Contractor shall be responsible for ensuring that the new
assembly will meet adequately at each point of connection
with the existing line and gaps between new pipe and existing
pipe will be one - quarter (1/4 ") inch or less. All pipe fittings
and coupling devices shall be sufficiently rodded so that after
the installation, the line segment may be re- pressurized and
inspected prior to backfi]L
The Contractor shall give the Engineer twenty-four (24) hours
notice before he wishes to perform the installation of the
new piping. Prior to any further excavation, the Engineer
shall be responsible for valving off the existing line so that it
is isolated from the overall system and no longer operational
The Contractor shall be responsible for relieving any residual
pressure once the line has been isolated.
The Cori ctor shall coordinate his work in order to ensure
that no existing water line will be out of operation for more
than eight (8) hours. No construction shall begin and no
existing water line shall be taken out of service if the
contractor is not a prepared or other circumstances
exist or are impending (such as inclement weather) that would
keep an existing line out of operation for more than eight
(8) hours, in the opinion of the Engineer. The Contractor
will not hold the Owner liable for costs or damages due to
such delays.
TS-6
ITEM 9 CONSTRUCTION WITHIN HIGHWAY RIGHT -OF -WAY
All construction performed within any right-of- -way of the
State of Texas shall be in accordance with any rules,
regulations and policies of the State Department of Highways
and Public Transportation.
(eight02 /4)
After installation and prior to backfill, the line segment shall
be returned to service and visually inspected for leaks and/or
defects. Lealdng or defective installation shall not be
acceptable. The Contractor shall be responsible for repairing
or remedying any leaking or defective installation and at his
snl expense.
This item will be measured at the limits specified per lump
sum. The work performed as prescribed by this item will be
paid for at the unit price bid per lump sum for "Approx.
Sta. : Horizontal (Vertical) Adjustment of _ " Water
Line wh eh p ice shall be full compensation for the work
gVPcified, including the furnishing of all materials, equipment,
tools, labor, excavation (at all depths), blocking, bedding,
backfill, restoration, clean -up, revegetation (where
applicable), and incidentals necessary to complete the work.
TS-7
ITEM 100 -A
TRENCH SAFETY SYSTEMS
Item No. 100 -A
Trench Safety Systems
100.1 Description
This item shall consist of designing, furnishing, installing, and
maintaining trench safety systems required for the construction of
trench excavation and backfill made necessary by the safety system. A
trench shall be defined as a narrov excavation made below the surface
of the ground. In general the depth is greater than the width but the
width is not greater than 15 feet. Trench Safety Systems include, but
are not limited to sloping, sheeting, trench shields or boxes, sheet
piling, cribbing, bracing, shoring, devatering, or diversion of vater
to provide adequate drainage.
100.2 Safety
Safety of personnel on the vork site is of paramount importance to
the Ovner. Contractor shall initiate and maintain a trench safety
training program vhich shall provide for frequent and regular training
sessions. The trench safety program shall be in accordance vith
Occupational Safety and Health Administration (OSHA) standards govern-
ing the presence and activities of individuals vorking in and around
trench excavation.
Contractor shall submit documentation of the existence and content of
the safety training program at or before the Pre - Construction Confer-
ence.
At or before the Pre - Construction Conference, the Contractor shall
also submit a letter signed by an officer of the entity certifying
that no employee of the Contractor of Subcontractor vill be alloyed in
or near a trench excavation on this project unless the employee has
first successfully completed training in basic trench safety subjects.
In the same letter, the Contractor shall also name the "competent
person" (foreman or superintendent) vho is to be reasonably available
to the project at all times vhen trench construction vork is in pro-
gress and vho is empovered to act for the Contractor in trench safety
matters. The competent person shall be one vho is capable of identi-
fying existing hazards in the surroundings, or vorking conditions
vhich are unsanitary, hazardous, or dangerous to employees, and vho
has authorization to take prompt corrective measures to eliminate
those conditions.
Page 1 3/30/88 100 -A
100.3 Trench Safety Plan
Vithin three weeks following the opening of bids, the Contractor shall
submit to the Engineer /Architect, • plan for a Trench Safety System
which shall conform to the provisions of Subpart P, Part 1926 of the
Code of Federal Regulations and which shall be capable of being in-
stalled within the available vork space. Failure to submit the re-
quired plan vithin the allovable time may be cause for rejecting a
proposal as being non - responsive. The plan shall be prepared and
sealed by a Professional Engineer, registered in the State of Texas
and qualified by experience to design such systems. The plan shall
contain as a minimum the following:
1. A plan or other designation of the areas in which each type
of system shall be used.
2. Drawings, manufacturer's data, or other method of identifying
the various elements of the system with sufficient specific-
ity to alloy positive identification during construction, and
installation requirements sufficient to alloy field verifica-
tion of proper installation.
3. Manufacturer's written specifications, recommendations,
limitations, and manufacturer's permission to deviate from
those specifications, recommendations, and limitations.
4. Engineering calculations or manufacturer's certifications
shoving that the system is designed to withstand anticipated
loadings and to provide protection throughout the full depth
of the trench. Loads used for design of the Trench Safety
System shall be as determined by the Contractor's geotechni-
cal consultant except in that no case shall the design load-
ings used be less than 45 psf per foot of height of the
trench plus adjacent soil�ank for shoring systems or less
than 55 psf per foot of height of the trench plus soil
bank for trench shield or trench box design.
5. If proper installation of the proposed Trench Safety Plans
require trench vidths in excess of those noted in the
Standard Details or Standard Specifications, the plan shall
also contain engineering calculations shoving that the
additional loadings imposed by the increased width do not
result in a need for a stronger class of pipe. If the
calculations show that a stronger class of pipe is required,
the additional cost shall be included in the price bid for ;
construction of the pipe.
The purpose of submittal review by the Engineer /Architect is to deter-
mine that the Contractor has planned the trenching work and the trench
safety systems required, that a qualified professional engineer has
assisted the Contractor in this planning, and that the plan is in
general conformance vith the project design requirements. The reviev
Page 2 3/30/88 100 -A
of submittals does not relieve the Contractor of full responsibility
for trench safety, including selection, excavation and construction
procedures, methods and materials. The Contractor is solely responsi-
ble for any and all property damage or bodily injury, including death,
that arises from his trenching activities, vhether or not performed in
accordance vith the submittals.
100.4 Soils Information
The 0vner may have obtained geotechnical information, vhich may
include sub - surface data, logs of soil borings, and recommendations
from geotechnical consultants. Any information obtained is solely for
use by the City and /or its design consultants in the design of the
project and are not part of the contract. If soil borings have been
prepared they vill be included in Section 00220 of this Project Manual
or on the plans. Any geotechnical information included is for
information only. The City and its design consultants do not
guarantee the accuracy or validity of the data, nor do they assume any
responsibility for any interpretations or conclusions the Contractor
may dray from the data.
The Contractor shell provide to the Contractor's Professional
Engineer all information needed to design the Trench Safety System
required by Section 101.3. The Contractor may, at his option, perform
additional sub - surface investigations at his ovn expense.
100.5 Inspections
Contractor's "competent person" shall inspect the trench, the adjacent
area, and the trench safety system each day, before alloying vorkers
to enter the trench, for evidence of any situation vhich might result
in unsafe vorking conditions and to ensure the system meets OSHA
requirements. Such inspections shall also be performed folloving
rainfall or any other occurrence, such as -encountering unexpected
sub - surface conditions, vhich could result in hazardous conditions.
If evidence of possible cove -ins or slides is noted, or any time a
safety system is damaged, vork shall immediately cease and all
personnel shall be removed from the trench. Personnel shall be
required to remain outside the trench until the necessary repairs,
reinforcement, or other appropriate actions have been taken as
directed by Contractor's "competent person ". After the appropriate
action has been taken the "competent person" shall inspect and approve
the vork before alloying the personnel to re -enter the trench. The
Contractor shall maintain a permanent record of inspections vhich
shall be made available to the Omer upon request.
Page 3 3/30/88 100 -A
100.6 Construction Methods
Trench safety systems shall be constructed in accordance vith the
detailed specifications set out in the provisions of Excavations,
Trenching, and Shoring, U.S. Department of Labor Occupational Safety
and Health Administration (OSHA) Regulations, 29 CFR, Part 1926,
Sdbpart P. A reproduction of the specifications is attached for the,
convenience of the Contractor. The Ovner assumes no responsibility
for the accuracy of the reproduction. The Contactor is responsible
for obtaining a current copy of this section of the Federal Register
for use during the project.
Contractor shall not allow any employee to enter any trench et any
time, including during excavation, construction, backfilling, or other
such operations, unless the proper Trench Safety System is in place in
that section of trench.
Contractor shall at all times safely guard all property from injury or
loss in connection vith this Contract. He shall at all times safely
guard and protect his ovn vork and any adjacent property from damage.
Contractor shall repair, replace, or othervise make good any such
damage, loss, or injury arising out of Contractor's excavation
operations.
100.7 Alternate Designs
During construction, the Contractor may desire to utilize an alternate
trench safety system due to unexpected conditions, to expedite the
construction, or for some other reason. The plan for the proposed
alternate system shall be prepared in conformance vith Section 101.3,
by Contractor's Professional Engineer and submitted to the,
Architect /Engineer for approval. Contractor shall not begin
utilization of any alternate system until the substitution is
authorized by change order.
100.8 Indemnification
The Contractor shall indemnify and hold harmless the City, its
employees, its agents, and its design consultants, from any and all
damages, costs (including, vithout limitation, legal fees, court costs
and the cost of investigation), judgments, or claims by anyone for
injury or death of persons resulting from the collapse or failure of
trenches constructed under this contract.
The Contractor acknovledges and agrees that this indemnity provides
indemnity of the City in case the City is negligent either by act or
omission in providing trench safety, including, but not limited to
inspection, failure to issue stop vork orders, and the hiring of the
Contractor.
Page 4 3/30/88 100 -A
100.9 Measurement
Trench safety systems shall be measured by lump sun when depth exceeds
five feet, completely installed to Contractor's approved plan and spec-
ifications, maintained, and removed when no longer required, including
any excavation required for installation, and any additional backfill-
ing caused by such installation.
100.10 Payment
Payment. for Trench Safety Systems, measured as prescribed above, will
be made at unit price bid per ltunp sun for safety systems in Contrac-
tor's approved plan and specifications, which price shall include spe-
cial clearing, excavation and backfilling.
Payment for general clearing excavation, bedding, pipe, backfill and
restoration of vegetation or street surfaces are not included in this
item, but will be paid under other items bid.
Payment will be made under the following:
Trench Safety Systems, all depths exceeding 5 feet,
per Lug Sum.
— OM r MN M-- MN I 1 MO NM ME NM — NM =— il•
Appendix
CONSTRUCTION Safety II Health Regulations Part 192e
Subpart P Excavations, Trenching, and Shoring
19211.650— General protection requirements.
(a) Walkways, runways, and sidewalks shall be kept clear of ex-
cavated material or other obstructions and no sidewalks shall be
undermined unless shored to carry a minimum live load of one hun-
dred and twenty -five (123) pounds per square foot.
(b) If planks are used for raised walkways. runways, or
sidewalks, they shall be laid parallel to the length of the walk and
fastened together against displacement.
(c) Planks shall be uniform in thickness and all exposed ends
shall be provided with beveled cleats to prevent tripping.
(d) Raised walkways, runways. and sidewalks shall be provided
with plank steps on strong stringers. Ramps. used in lieu of steps,
shall be provided with cleats to insure a safe walking surface.
(e) AU employees shall be protected with personal protective
equipment for the protection of the head, eyes. respiratory organs,
hands. feet. and other parts of the body u set forth in Subpart E of
this part.
(1) Employees exposed to vehicular traffic shall be provided with
and shall be instructed to wear warning vests marked with or made
of reflectorized or high visibility material.
(g) Employees subjected to hazardous dusts, gases. fumes,
miss. or atmospheres deficient in oxygen. shall be protected with
approved respiratory protection u set forth in Subpart D of this
Part.
(h) No person shall be permitted under feeds handled by power
shovels, derricks, or hoists. To avoid any spillage employees shall
be required to stand away from any vehicle being loaded.
(i) Daily inspections of excavations shall be made by • compe-
tent person. If evidence of possible care-ba or slides is apparent, all
work in the excavation shall cease until the necessary precautions
have been taken to safeguard the employees.
19211.651 — Speciflc excavation requirements.
(a) Prior to opening an excavation, effort shall be made to deter-
mine whether underground installations. i.e.. sewer. telephone.
water, fuel. electric lines. etc.. will be encountered. and if so. where
such underground installations are Coated. When the excavation
approaches the estimated location of such an installation. the exact
location shall be determined and when it is uncovered, proper sup-
ports shall be provided for the existing installation. Utility com-
panies shall be contacted and advised of proposed work prior to the
start of actual aavation.
12
(b) Trees, boulders. and other surface encumbrances. located so
as to create a hazard to employees involved in excavation work or
in the vicinity thereof at any time during operations. shall be
removed or made safe before excavating is begun.
(c) The walls and faces of all excavations In which employees are
exposed to danger from moving ground shall be guarded by a shor-
ing system, sloping of the ground. or some other equivalent means.
(d) Excavations shall be inspected by a competent person after
every rainstorm or other hazard - increasing occurrence. and the
protection against slides and cave -ins shall be increased If
necessary.
(e) The determination of the angle of repose and design of the
supporting system shall be based on careful evaluation of pertinent
factors such u: Depth of cut; possible variation in water content of
the material while the excavation is open; anticipated change in
materials from exposure to air. sun, water, or freezing: lading im-
posed by structures, equipment. overlying material. or stored
material; and vibration from equipment. blasting. traffic, or other
sources.
(f) Supporting systems. I.e., piling, cribbing. shoring, etc., stall
be designed by a qualified person and meet accepted engineering re-
quirements. When tie rods are used to restrain the top of sheeting
or other retaining systems. the rods shall be securely anchored well
beck of the angle of repose. When tight sheeting or sheet piling is
used. full loading due to ground water table shall be assumed.
unless prevented by weep holes or drains or other means. Addi-
tional stringer, ties. and bracing shall be provided to allow for toy
necessary temporary removal of individual supports.
(g) All slopes shall be excavated to at lent the angle of repose ex-
cept for areas where solid rock allows for line driUing or ptaplit-
ting.
(h) The angle of repose shall be flattened when an caseation
has water conditions, silty materials, loose boulders, and areas
where erosion. deep frost action, and slide planes appear.
(i) (1) In excavations which employees may be required to enter,
excavated or other material shall be effectively stored and retained
at least 2 fat or more from the edge of the excavation.
(2) As an alternative to the clearance prescribed in sub-
paragraph (1) of this paragraph. the employer may use effective
barriers or other effective retaining devices in lieu thereof In ceder
to prevent excavated or other materials from falling into the ex-
cavation.
(j) Sides. slopes, and faces of all excavations shall mat accepted
engineering requirements by scaling. benching, barricading. rock
bolting, wire meshing, or other equally effective mew. Special at-
13
MB II I — — M M I — M M M •N - - - -
tuition shall be given to slopes which may be adversely affected by
weather or moisture content.
(k) Support systems shall be planned and designed by a qualified
person when excavation is in excess of 20 feet in depth, adjacent to
structures or improvements, or subject to vibration or ground
water.
(1) Materials used for sheeting, sheet piling, cribbing, bracing,
shoring, and underpinning shall be in good serviceable condition,
and timbers shall be sound, free from large or loose knots, and of
proper dimensions.
(m) Special precautions shall be taken in sloping or shoring the
sides of excavations adjacent to a previously backfilled excavation
or a fill, particularly when the separation is less than the depth of
the excavation. Particular attention also shall be paid to joints and
seams of material comprising • face and the slope of such seams
and joints.
(n) Except in hard rock, excavations below the level of the base
of footing of any foundation or retaining wall shall not be permit-
ted, unless the wall is underpinned and all other precautions taken
to insure the stability of the adjacent wails for the protection of
employees involved in excavation work or in the vicinity thereof.
(o) 11 the stability of adjoining buildings or walls is endangered
by excavations, shoring. bracing, or underpinning shall be pro-
vided u necessary to insure their safety. Such shoring. bracing. or
underpinning shall be inspected daily or more often, as conditions
warrant, by a competent person and the protection effectively
maintained.
(p) Diversion ditches, dikes, or other suitable mans shall be
used to prevent surface water from entering an excavation and to
provide adequate drainage of the area adjacent to the excavatlon.
Water shall not be allowed to accumulate in an exavatlon.
(q) If it is necessary to place or operate power shoveb, derricks,
trucks, matesiah, or other heavy objects on a level above and near
an excavation, the side of the excavation shall be shed -piled.
shored. and braced as necessary to resist the extra pressure doe to
such superimposed loads.
(r) Blasting and the use of explosives shall be performed In ac-
cordance with Subpart U of this part.
(s) When mobile equipment Is utilbed or allowed adjacent 10 ex-
cavations. substantial stop logs or barricades shall be Installed. If
possible. the grade should be away from the excavation.
(t) Adequate barrier physical protection shall be provided at all
remotely located excavations. All welts, pits, shafts. etc., shall be
barricaded or covered. Upon completion of exploration and similar
operations, temporary wells. pits, shafts. etc., shall be baekttlled.
•
(u) if possible, dust conditions shall be kept to a minimum by
the use of water, salt, calcium chloride, oil, or other mans.
(v) In locations where oxygen deficiency or gaseous conditions
are possible, air in the excavation shall be tested. Controh, as set
forth in Subparts D and E of this part, shall be established to assure
acceptabk atmospheric conditions. When flammable gases are pre-
sent. adequate ventilation shall be provided or sources of ignition
shall be eliminated. Attended emergency rescue equipment. such as
breathing apparatus, a safety harness and Ilne, basket stretcher,
etc., shall be readily available where adverse atmospheric condi-
tions may exist or develop in an excavation.
(w) where employees or equipment are required or permitted to
cross over excavations, walkways or bridges with standard guard-
rails shall be provided.
(x) Where ramps are used for employees or equipment, they
shall be designed and constructed by qualified persons in accord-
ance with accepted engineering requirements.
(y) All ladders used on excavation operations shall be in MOM-
mace with the requirements of Subpart 1. of this part.
1820.652 — Specific trenching requirements.
(a) Banks more than 5 feet high shall be shored, laid back to a
stable slope, or some other equivalent means of protection shall be
provided where employees may be exposed to moving ground or
cave -ins. Refer to Table P -1 as a gulch In sloping of banks.
Trenches less than 5 feet in depth shall also be effectively protected
when examination of the ground indicates hazardous ground
movement maybe expected.
(b) Sides of trenches in unstable or soh material. 5 fed or more
in depth. shall be shored, sheeted. braced, sloped. or otherwise sup-
ported by means of sufficient strength to protect the employee,
working within them. See Tables P -1. P -2 (following paragraph (1)
of this section).
(c) Sides of trenches In hard or compact soil. including em-
bankments. shall be shored or otherwbe supported when the trends
is more than 5 feet in depth and 6 fat or more in length. In lien of
shoring. the sides of the trench above the 5-foot level maybe sloped
to preclude collapse. but shall not be steeper than a 1 -foot rbe to
each K -foot horizontal. When the outside diameter of a pipe is
greater than 6 fat, • bench of 4-foot minimum shall be provided at
the toe of the sloped portion. -
(d) Materials used for sheeting and sheet piling. bracing. shot
big. and underpinning. shall be in good serviceable condition, and
timbers used shall be sound and free from large or loose knob. and
14 15
ON NM NM — .• - -• MI • I I M N MI In NM —
shall be designed and installed so as to be effective to the bottom of
the excavation.
(e) Additional precautions by way of shoring and bracing shall
be taken to prevent slides or cave -ins when excavations or trenches
are made in locations adjacent to backfilled excavations, or where
excavations are subjected to vibrations from railroad or highway
traffic, the operation of machinery, or any other source.
(f) Employees entering bell- bottom pier holes shall be protected
by the installation of a removable -type casing of sufficient strength
to resist shifting of the surrounding earth. Such temporary protec-
tion shall be provided for the full depth of that part of each pier
hole which is above the bell. A lifeline, suitable for instant rescue
and securely fastened to a shoulder harness, shall be worn by each
employee entering the shafts. This lifeline shall be individually
manned and separate from any line used to remove materials ex-
cavated from the bell footing.
(g) (I) Minimum requirements for trench dmberhtg shall be in
accordance with Table P -2.
(2) Braces and diagonal shores In • wood shoring system
shall not be subjected to compressive stress in excess of vahres given
by the following formula:
S. 1300 — 20L
D
Maximum ratio L - 50
D
Where:
L — Length, unsupported, in Inches.
D - Least side of the timber in inches. •
S - Allowable stress in pounds per square inch of cross- section.
(h) When employees are required to be in torches 4 feet deep or
more. an adequate means of exit, such as a ladder or steps shall be
provided and looted so as to require no more than 25 feet of lateral
travel.
(i) Bracing or shoring of trenches shall be carried along with the
excavation.
(j) Cross braces or trench jacks shall be placed in true horizontal
position, be spaced vertically. and be sacred to prevent sliding,
failing. or kiekouts.
(k) Portable trench boxes or sliding trench shields may be used
for the protection of personnel in lieu of • shoring system or slop-
ing. Where such trench boxes or shields are used. they shall be
designed, constructed, and maintained in a manner which will pro-
vide protection equal to or greater than the sheeting or shoring re-
quired for the trench.
16
(I) Backfilling and removal of trench supports shall progress
together from the bottom of the trench. lacks or brass shall be
released slowly and, in unstable soil, ropes shall be used to pull out
the jacks or braces from above after employees have cleared the
trench.
17
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1925.653 — Definitions applicable to this subpart.
(a) "Accepted engineering requirements (or practices)" —Those
requirements or practices which are compatible with standards re-
quired by a registered architect. a registtfred professional engineer.
or other duly licensed or recognized authority.
(b) "Angle of repose " —The greatest angle above the horizontal
plane at which • material will lie without sliding.
(c) "Bank " —A mass of soil rising above a digging level.
(d) "Belled excavation " —A part of a shaft or tooting excava-
tion, usually near the bottom and bell-shaped: i.e.. an enlargement
of the cross section above.
(e) "Braces (trench)" —The horizontal members of the shoring
system whose ends bear against the uprights or stringers.
(1) "Excavation" —Any manmade cavity or depression in the
earth's surface, including its sides. walls, or faces, formed by earth
removal and producing unsupported earth conditions by reasons of
the excavation. If installed forms or similar structures reduce the
depth-to-width relationship, an excavation may become a trench.
(g) "Faces" —See paragraph (k) of this section.
(h) "Hard compact soil" —All earth materials not dassifkd as
running or unstable.
(1) "Kickouts "— Accidental release or failure of a shore or
brace.
61 "Sheet pile" —A pile, or sheedng. that may form one of a
continuous interlocking line. or a row of timber. concrete, or steel
piles. driven in close contact to provide a tight wall to resist the
lateral pressure of water. adjacent earth, or other materials.
(k) "Sides." "Walls," or "Faces"—The vertical or Inclined
earth surfaces formed as a result of excavation work.
(I) "Slope" —The angle with the horizontal at which a padwhr
earth material will stand indefinitely without movement.
(m) "Stringers" (wales)—The horizontal members of a shoring
system whose sides bar against the uprights or earth.
(n) " Trench " —A narrow excavation made below the surface of
the ground. In general, the depth is grater than the width, but the
width of a trench is not greater than 15 feet.
(o) "Trench jack" —Screw or hydraulic type jacks used as cross
bracing in a trench shoring system.
(p) "Trench shield " —A shoring system composed of steel plate:
and bracing, welded or bolted together, which support the walls of
a trench from the ground level to the trench bottom and which can
be moved along as work progresses.
19
IMO NM ME M — — - -_ — — — IM — — • MI M — • •
(q) "Unstable soil"—Earth material, other than running. that
berme of its nature or the influence of related conditions, canna
be depended upon to remain in place without errtra support, such u
would be furnished bya system of shoring.
(r) "Uprights " -7M vertical members of • shoring 'Mein. •
(s) "Wales" —See paragraph (m) of this section.
(t) "Walls" —See peragraph (k) of this section.
20
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Item No. 403
Concrete for Structures
403.1 Description
This Item shall consist of the quality of concrete materials, storing and handling of these materials and for the proportioning and
mixing of concrete for buildings, bridges, culverts, slabs, prestressed concrete and Incidental concrete construction.
The concrete shall be composed of Portland Cement, aggregates (fine and coarse), admixtures if desired or required and water,
proportioned and mixed as hereinafter provided. Accelerating admixtures will not be permitted without the express approval of
the Engineer /Architect.
403.2 Materials
(1) Cement .
Portland Cement shall conform to ASTM C 150, Type I, General Purpose, Type II, General Purpose with moderate
sulfate resistance and Type III, High Early Strength.
Either Type I or II cement shall be used unless Type . 11 is Indicated. Except when Type II is indicated, Type III cement
may be used when the anticipated air temperature for the succeeding 12 hours will not exceed 60 F. Type III cement
may be used in all precast prestressed concrete except in piling when Type II cement Is required for substructure
concrete. All cement used In a monolithic placement shall be of the same type.
(2) Mixing Water
Water for use in concrete and for curing shall be potable water free from oils, acids, organic matter or other deleteri-
ous substances and shall not contain more than 1,000 parts per million of chlorides as CI nor more than 1,000 parts
per million of sulfates as SO,.
The Contractor may request approval of water from other sources. The Contractor shall arrange for samples to be
taken from the source and tested at his expense. Tests shall be made conforming to AASHTO Method T 26, "Stan-
dard Method of Test for Quality of Water to be used in Concrete" except where such methods are in conflict with
provisions of this specification.
(3) Coarse Aggregate
Coarse aggregate shall consist of durable particles of gravel, crushed blast fumace slag, crushed stone or combina-
tions thereof; free from frozen material or injurious amounts of salt, alkali, vegetable matter or other objectionable
material either free or as an adherent coating and its quality shall be reasonably uniform throughout. 11 shall not
contain more than 0.25 percent by weight of clay lumps, nor more than 1.0 percent by weight of shale nor more than
5 percent by weight of laminated and /or triable particles when tested conforming to SDHPT Test Method Tex - 413 -A.
It shall have a wear of not more than 40 percent when tested conforming to SDHPT Test Method Tex - 410 -A.
Unless otherwise indicated, coarse aggregate may be subjected to 5 cycles of the soundness test conforming to
SDHPT Test Method Tex - 411 -A. The loss shall not be greater than 12 percent when sodium sulfate is used or 18
percent when magnesium sulfate is used.
Permissible sizes and gradation of aggregate shall be govemed by Tables 1, 2 and 4. Except when exposed aggre-
gate surfaces are required, coarse aggregate gradation will be as indicated.
When tested by approved methods, the coarse aggregate, including combinations of aggregates when used, shall
conform to the grading requirements shown in Table 1.
Table 1
Coarse Aggregate Gradation Chart
Percent Retained on Each Sieve
Aggregate Nominal
Grade No. Size 21" 2" 1 1" 3/4" 3'e' No. 4 No. 8
1 2 0 0 -20 15 -50 60 -80 95 -100
2 (467)' 1 0 0 -5 30 -65 70 -90 95 -100
3 1 0 0 -5 10 -40 40 -75 95 -100
4 (57)' 1 0 0 -5 40 -75 90 -100 95 -100
5 (67)' 3 /< 0 0 -10 45 -80 90 -100 95 -100
6(7)' Yz 0 0 -10 30 -60 85 -100
Page 1 04/17/86 403
Aggregate Nominal
Grade No. Size
403 04/17/86 Page 2
21"
Table 1 (continued)
Coarse Aggregate Gradation Chart
Percent Retained on Each Sieve
11/2" 1" °/i"
3 A" No.4 No.8
7 3/ 0 5 -30 75 -100
8 No. 4 0 0 -5 35 -60 90 -100
• Numbers in parenthesis indicate that these gradations conform to ASTM C 33.
The aggregate shall be washed. The Loss by Decantation (SDHPT Test Method Tex - 406 -A), plus the allowable
weight of clay lumps, shall not exceed 1 percent or the value indicated, whichever is smaller. In the case of aggre-
gates made primarily from the crushing of stone, if the material finer than the 200 sieve is definitely established to be
the dust of fracture, essentially free from clay or shale as established by SDHPT Test Method Tex - 406 -A, the percent
may be increased to 1.5.
(4) Fine Aggregate
Fine aggregate shall consist of clean, hard, durable and uncoated particles of natural or manufactured sand or a
combination thereof, with or without a mineral tiller. It shall be free from frozen material or injurious amounts of salt,
alkali, vegetable matter or other objectionable material and it shall not contain more than 0.5 percent by weight of
clay lumps. When subjected to the color test for organic impurities SDHPT Test Method Tex - 408 -A, it shall not show
a color darker than standard.
The fine aggregate shall produce a mortar having a tensile strength equal to or greater than that of Ottawa sand
mortar when tested conforming to SDHPT Test Method Tex- 317 -D.
Unless otherwise indicated, the acid insoluble residue of line aggregate used in slab concrete subject to direct traffic
shall not be less than 28 percent by weight when tested conforming to SDHPT Test Method Tex - 612 -J.
When tested by approved methods, the tine aggregate or combinations of aggregates including mineral tiller shall
conform to the grading requirements shown in Table 2.
Table 2 •
Fine Aggregate Gradation Chart
Percent Retained on Each Sieve
Aggregate
Grade No. Ye" No. 4 No. 8 No. 16 No. 3D No. 50 No. 100 No. 200
1 0 0 -5 0 -20 15 -50 35 -75 65 -90 90 -100 97 -100
NOTE 1: Where the sand equivalent is greater than 85, the retainage on the No. 50 sieve may be 65 to 94 percent.
NOTE 2: Where manufactured sand is used in lieu of natural sand, the percent retained on the No. 200 sieve shall be 94
to 100 percent.
Fine aggregate will be subjected to the Sand Equivalent Test SDHPT Test Method Tex - 203 -F. The sand equivalent
shall not be less than 80 nor less than the value indicated, whichever is greater.
For Class A, C, E and F Concrete, the fineness modulus as defined below for fine aggregates shall be between 2.30
and 3.10 for grade 1 only.
For Class H Concrete, the fineness modulus of the tine aggregates shall be between 2.40 and 2.90.
The fineness modulus will be determined by adding the percentages by weight retained on the following sieves and
dividing by 100; Nos. 4, 8, 16, 30, 50 and 100.
(5) Mineral Filler
Mineral filler shall consist of stone dust, clean crushed sand or other approved inert material.
(6) Mortar (Grout)
Mortar for repair of concrete shall consist of 1 part cement, 2 parts finely graded sand and enough water to make the
mixture plastic. When required to prevent color difference, white cement shall be added to produce the color re-
quired. When required by the Engineer /Architect, latex adhesive shall be added to the mortar.
(7) Admixtures
Calcium chloride will not be permitted. Alr entraining, retarding and water reducing admixtures may be used in all
concrete and shall conform to Item No. 405, "Concrete Admixtures ".
403.3 Storage of Cement
Cement shall be stored in well ventilated, weatherproof buildings or approved bins which will protect it from dampness or absorp-
tion of moisture. Storage facilities shall be ample and each shipment of packaged cement shall be kept separated to provide easy
access for Identification and inspection.
The Engineer /Architect may permit small quantities of sacked cement to be stored in the open for a maximum of 48 hours on a
raised platform and under waterproof covering.
403.4 Storage of Aggregate
The method of handling and storing concrete aggregate shall prevent contamination with foreign materials. If the aggregates are
stored on the ground, the sites for the stock piles shall be clear of all vegetation. The bottom 6 inch layer of aggregate shall not be
disturbed or used without recleaning.
When conditions require the use of 2 or more sizes of aggregates, they shall be separated to prevent intermixing. Where space is
limited, stock piles shall be separated by physical barriers.
Methods of handling aggregates during stockpiling and subsequent use shall be such that segregation will be minimized.
All aggregate shall be stockpiled at least 24 hours to reduce the free moisture content.
403.5 Measurement of Materials
The measurement of the materials, except water, used in batches of concrete shall be by weight or an accurate volumetric mea-
suring method approved by the Engineer /Architect. The fine aggregate, coarse aggregate and mineral filler shall be weighed
separately. Where bulk cement is used it shall be weighed separately but batch weighing of sacked cement will not be required.
Where sacked cement is used, the quantities of material per batch shall be based upon using full bags of cement. Batches
involving the use of fractional bags will not be permitted.
Allowances shall be made for the water content in the aggregates.
Bags of cement varying more than 3 percent from the specified weight of 94 pounds may be rejected and when the average
weight per bag in any shipments, as determined by weighing 50 bags taken at random, is less than the net weight specified. the
entire shipment may be rejected. If the shipment Is accepted, the Engineer will adjust the concrete mix to a net weight per bag
fixed by an average of all individual weights which are less than the average weight determined from the total number weighed.
403.6 Classification and Mix Design
It shall be the responsibility of the Contractor to furnish the mix design, using a Coarse Aggregate Factor acceptable to the
Engineer, for the class(es) of concrete specified. The mix shall be designed by a qualified commercial laboratory to conform with
the requirements contained herein and conforming to SDHPT Bulletin C -11 and supplements thereto. The Contractor shall
perform, at his own expense, the work required to substantiate the design, Including the testing of strength specimens. Complete
concrete design data shall be submitted to the Engineer for approval. The mix design will be valid for a period of 1 year and shall
be re- established for projects which extend beyond the 1 year period or when there is a change in materials.
It shall also be the responsibility of the Contractor to determine and measure the batch quantity of each ingredient, including all
water, not only for batch designs but for all concrete produced for the project so that the mix conforms to these specifications and
any other requirements Indicated. In lieu of the above mix design responsibility, the Contractor may request approval of a current
design previously accepted by the City, if it can be shown that no substantial change In any of the ingredients has been made.
However, this will not relieve the Contractor of the responsibility of providing concrete meeting the requirements of these
specifications.
The coarse aggregate factor shall not be more than 0.82 except that when the voids in the coarse aggregate exceed 48 percent
of the total dry loose volume, the coarse aggregate factor shall not exceed 0.85. The coarse aggregate factor shall not be less
than 0.68.
Page 3 04/17/86 403
H the strength required for the class of concrete being produced is not secured with the cement specified in Table 4, the Contrac-
tor may use an approved water reducing and retarding admixture or he shall furnish aggregates with different characteristics
which will produce the required results. Additional cement may be required or permitted as a temporary measure until the re-
design is checked.
Approved water reducing or retarding agents may be used with all classes of concrete at the option of the Contractor and will be
required for hot weather concreting and for continuous slab placement. The agents shall conform to Item No. 405, "Concrete
Admixtures" and Item No. 410, "Concrete Structures ".
When a retarding admixture is required for hot weather concreting, the amount to be used shall conform to Item No. 405, "Con- ,
crete Admixtures ". When used in continuous slab placement, the amount to be used will be established by several trial batches
with varying retarder content and simulating the placing conditions to be encountered. When water reducing or retarding agents
are used at the option of the Contractor, reduced dosage of the admixture will be permitted.
Entrained air will be required conforming to Table 4. The concrete shall be designed to entrain 5 percent air when Grade 2 coarse
aggregate is used and 6 percent when Grade 3 coarse aggregate is used. Concrete as placed in the structure shall contain the
proper amount as required above with a tolerance of - ±1V2 percentage points. Variations beyond this tolerance may be cause for
rejection.
403.7 Consistency
The consistency of the concrete as placed should allow the completion of all finishing operations without the addition of water to
the surface. When field conditions are such that additional moisture is needed for the final concrete surface finishing operation,
the required water shall be applied to the surface by fog spray only and shall be held to a minimum. The concrete shall be
workable, cohesive, possess satisfactory finishing qualities and of the stiffest consistency that can be placed and vibrated into a
homogeneous mass within the slump requirements specified in Table 3. Excessive bleeding shall be avoided. Slump values shall
conform to SDHPT Test Method Tex - 415 -A.
Table 3 i
Slump Requirements I
Type of Construction Slump, inches
Maximum Minimum
Piers and Cased Drilled Shafts 4 3
Reinforced foundation caissons and footings 3 1
Reinforced footings and substructure walls 3 1
Uncased Drilled Shafts 6 5
Thin - walled Sections (9 inches or less) 5 4
Prestressed Concrete Members 5 4
Wall Sections over 9 inches 4 3
Reinforced building slabs, beams, columns and walls 4 1
Bridge Decks 4 2
Pavements
Fixed -form 2 1
Slip -form 1'h '
Sidewalks, driveways and slabs on ground 4 2
Curbs & gutters
Hand - vibrated 3 1 .
Hand - tamped or spaded 4 2
Slip- form /extrusion machine 2 1/2
Heavy mass construction 2 1
High strength concrete 4 3
Riprap and other miscellaneous concrete 6 1
Under water or seal concrete 6 5
403 04/17/86 Page 4-
NOTE: No Concrete will be permitted with slump In excess of the maximums shown unless water reducing admixtures have
previously been approved,
403.8 Quality of Concrete, General
The Concrete shall be uniform and workable and of a consistency acceptable to the Engineer /Architect. The cement content,
maximum allowable water /cement ratio, the minimum and maximum slump, the proper amount of entrained air and the strength
requirements of the various classes of concrete shall conform to the requirements of Tables 3 and 4 and as required herein. It
shall be the responsibility of the Contractor to provide concrete meeting these requirements. Test beams or cylinders will be
required for each monolithic placement of bridge decks or superstructures, top slabs of direct traffic culverts, cased drilled shafts,
structural beams and otherwise as directed by the Engineer /Architect for "design strength" or early form removal. The require-
ment for early removal or opening will be at the Contractor's expense, except when the early opening or removal is required by
the Engineer /Architect and specified in Item No. 410, "Concrete Structures ".
During the progress of the work, the Engineer /Architect, the City's laboratory or in the absence of the above, the Contractor shall
cast test cylinders and /or beams as a check on the compressive and/or flexural strength of the concrete actually placed. The
Engineer /Architect or the City's laboratory shall also perform slump tests, entrained air tests and will make temperature checks
as required, to insure compliance with the specifications.
Test beams or cylinders will be required for small placements on structures such as manholes, inlets, culverts, wingwalls, etc.
The Engineer /Architect may vary the number of tests to a minimum of 1 for each 25 cubic yards placed over a several day period.
A strength test shall be defined as the average of the breaking strength of 2 cylinders or 2 beams as the case may be. Specimens
will be tested conforming to SDHPT Test Method Tex -418 -A or Tex - 420 -A. If the required strength or consistency of the class of
concrete being produced cannot be secured with the minimum cement specified or without exceeding the maximum water/ce-
ment ratio, the Contractor will be required to furnish different aggregates, use a water reducing agent, an air entraining agent or
Increase the cement content in order to provide concrete meeting these specifications.
The Contractor may request beam or cylinder tests for removal of forms and /or falsework at his own expense. The test speci-
mens shall be cured using the same methods and under the same conditions as the concrete represented.
"Design Strength" beams and cylinders shall be cured conforming to SDHPT Bulletin C -11 and Supplement thereto.
When control of concrete quality is by 28 day compressive tests, job control will be by 7 day flexural or compressive tests which
are shown to provide the required 28 day strength, based on results from trial batches. Thereafter, ff the required 7 day strength
is not secured with the quantity of cement specified in Table 4, changes in the batch design will be made as specified in Item No.
403, "Concrete for Structures ".
Table 4
Classes of Concrete
Class Min. Comp. Min. Beam Max. Water Coarse
of Sk. Cement Strength (f'c) Strength Cement Agg.
Conc. per C.Y. 26 Day psi 7 Day psi Ratio No.
I
A' 5.0 3000 #500 6.5 2 -3 -4 x
B 4.0 2000 300 8.0 2 -3 -4 x
C' 6.0 3600 #600 6.0 1.23"
D 4.5 2500 #425 7.5 2.3.4 x
E 6.0 3000 50D 7.0 2 -3
F' 6.0 to 8.0 As indicated f'c 5.5 2 -3
6
6.0 to 8.0 As indicated N.A. 5.5 3
1 5.5 3500 575 6.2 2 -3 -4 x
J 2.0 800 2-3-4
K 3.0
L 5.0 5000
M 6.0 5000
• Entrained Air (Slabs, piers and bent concrete).
• Grade 1 coarse Aggregate may be used in foundation only (except cased drilled shafts).
"' Entrained Air for slab concrete.
# When Type II Cement is used with Class C Concrete, the 7 day beam break requirement will be 550 psi; with Class A,
460 psi., minimum.
X Permission to use grade 4 aggregate must have prior approval of the Engineer.
Concrete that is to be placed in the bridge deck shall not have a temperature In excess of 85 F at the time of placement.
Page 5 04/17/86 403
403.9 Mixing Conditions
The concrete shall be mixed in quantities required for immediate use. Any concrete which is not in place within the limits outlined
in Item No. 410, "Concrete Structures" shall not be used. Retempering of concrete will not be permitted.
In threatening weather, which may result in conditions that will adversely affect quality of the concrete to be placed, the Engineer
shall notify the Contractor in writing that the placement of work may not meet the specifications and any work placed may have to
be removed and replaced. Where work has been started and changes in weather conditions require protective measures, the
Contractor shall furnish adequate shelter to protect the concrete against damage from rainfall or from freezing temperatures as
outlined in Item No. 410, "Concrete Structures ". If necessary to continue operations during rainfall, the Contractor shall also
provide protective coverings for the material stock piles. Aggregate stockpiles need be covered only to the extent necessary to
control the moisture conditions in the aggregates to adequately control the consistency of the concrete.
403.10 Mixing and Mixing Equipment
All equipment, tools and machinery used for hauling materials and performing any part 01 the work shall be maintained in such
condition to insure completion of the work under way without excessive delays for repairs or replacement.
The mixing shall be done in a mixer of approved type and size that will produce uniform distribution of the material throughout the
mass and shall be capable of producing concrete meeting the requirements of ASTM C 94, Ready -mixed Concrete and these
specifications.
The absolute volume of the concrete batch shall not exceed the rated capacity of the mixer.
The mixing equipment shall be capable of producing sufficient concrete to provide the quantities required to comply with Item No.
410, "Concrete Structures ".
The entire contents of the drum shall be discharged before any materials are placed therein for the succeeding batch.
Improperly mixed concrete shall not be placed in the structure.
Delivery of concrete to the site of the work and its discharge from the mixer, agitator or nonagitating equipment shall conform to
the requirements of Item No. 410, "Concrete Structures ".
The mixer may be batched by either the volumetric method or by weighing and shall be equipped with a suitable timing device
which shall lock the discharging mechanism and signal when specified time of mixing has elapsed.
An adequate water supply and suitable metering devices shall be provided.
The water tank shall be arranged so that the amount of water can be measured in gallons accurately. When the tank starts to
discharge, the inlet supply shall cut off automatically and remain off until the container has emptied completely and the discharge
line closed.
The first batch of concrete materials placed in the mixer for each placement shall contain an extra quantity of sand, cement and
water sufficient to coat the inside surface of the drum.
Upon the cessation of mixing for any considerable length of time, not exceeding a maximum of 1 hour, the mixer shall be thor-
oughly cleaned.
(1)
Proportioning and Mixing Equipment
For all miscellaneous concrete placements, a mobile, continuous, volumetric mixer or a volumetric or weight batch
mixer of the rotating paddle type may be used.
When approved by the Engineer in writing or when specified for use, these mixers may be used for other types of
concrete construction, including structural concrete, if the number of mixers furnished will supply the amount of con-
crete required for the particular operation in question.
These mixers shall be designed to receive all the concrete ingredients, including admixtures, required by the mix
design in a continuous uniform rale and mix them to the required consistency before discharging. They may be of the
volumetric or weight batch design. The mixers shall have adequate water supply and metering devices.
For continuous volumetric mixers, the materials delivered during a revolution of the driving mechanism or in a se-
lected interval, will be considered a batch and the proportion of each ingredient will be calculated in the same man-
ner as for a batch type plant.
The mixing time shall conform to the recommendations of the manufacturer of the mixer unless otherwise revised by
the Engineer.
Calibration of these mixers will be required.
403 04/17/86 Page 6
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(2) Ready -mixed Concrete
The use of ready -mixed concrete will be permitted provided the batching plant and mixer trucks meet requirements
of quality specified herein.
When ready -mixed concrete is used, additional mortar (1 sack cement, 3 parts sand and sufficient water) shall be
added to each batch to coat the drum of the mixer or agitator truck. Delivery of concrete to the site of the work and Its
discharge from the truck mixer, agitator or nonagitating equipment shall be in accordance with the requirements of
Item No. 410, "Concrete Structures ".
Ready -mixed concrete, batching plant and mixer truck operation shall include the following:
A ticket system will be used that includes a copy for the construction inspector. The ticket will have
machine stamped time /date of the concrete batch, weight of cement, sand and aggregates; exact no-
menclature and written quantities of admixtures and water. Any Item missing or incomplete on the ticket
may be cause for rejection of the concrete.
(b) Sufficient trucks will be available to support continuous slab placements. The Contractor will satisfy the
Engineer that adequate standby trucks are available to support monolithic placement requirements.
(c) A portion of the mixing water, required by the batch design to produce the specified slump', may be
withheld and added at the lob site, but only with the permission of the Engineer and under the Inspec-
tor's observation. When water is added under these conditions, it will be thoroughly mixed before any
slump or strength samples are taken.
(a)
(3) Site -mixed Concrete
Hand mixing of concrete will be permitted only for small placements or In case of an emergency and then only on the
authorization of the Engineer. Hand -mixed batches shall not exceed a 2 bag batch in volume.
Job mix concrete shall be concrete mixed in an approved batch mixer, conforming to the requirements stated above,
conveniently located to the structure for which the concrete is being mixed and moved to the placement site in non -
agitating equipment.
After all the required materials are in the mixer, the concrete shall be mixed not less than 50 seconds nor more than
the time indicated on the manufacturer's nameplate, measured from the time the last material enters the mixer to the
time discharge of the concrete begins.
The concrete mixer shall be equipped with an automatic timing device which is put into operation when the skip is
raised to its full height and dumping. This device shall lock the discharging mechanism and prevent emptying of the
mixer until all the materials have been mixed together for the minimum time required and it shall ring a bell after the
specified time of mixing has elapsed.
403.11 Excavation, Placing of Concrete, Finishing, Curing and Backfill
The excavation, placing of concrete, finishing, curing and backfill shall conform to Item No. 401, "Structural Excavation and
Backlit!" and Item No. 410, "Concrete Structures ".
403.12 Measurement
The quantities of concrete of the various classifications which will constitute the completed and accepted structure or structures
in place will be measured by the cubic yard, each, square foot, square yard, linear foot or lump sum as the case may be. Mea-
surement will be as follows:
(1) General
(a) All concrete quantities will be based on the dimensions indicated or those established in writing by the Engineer/
Architect. Diet= concrete, when required, will be included in the slab measurement.
(b) In determining quantities, no deductions will be made for chamfers less than 2 inches, embedded portions of
structural steel or prestressed concrete beams, piling, anchor bolts, reinforcing steel, drains, weep holes, junc-
tion boxes, electrical conduit, conduit and/or voids for prestressed tendons or for embedded portions of light
fixtures.
(c) For Pan Girder Spans, a quantity will be included for the screed setting required to provide proper camber in
the roadway surface after form removal.
(d) For Slabs on Steel and Prestressed Beams, a quantity for the haunch between the slab and beams will be
Page 7 04/1786 403
End
(3)
(3)
included when required. No measurement will be made during construction for variation in the amount of
haunch concrete due to deviation from design camber in the beams.
(e) For Slabs on Panels or T- Beams, the combination of span length, theoretical camber in beams, computed
deflections and plan vertical curve will be taken Into account in determining the quantity for the slab.
Additional concrete, which may be required by an adjustment of the profile grade line during construction to
insure proper slab thickness, will not be measured for payment.
Quantities revised by a change In design, measured as specified herein, will be increased or decreased, as
the case may be and included for payment.
Variations in concrete headwall quantity incurred if an alternate bid for pipe is permitted will not be measured
for payment.
(f)
(g)
(2) Plan Quantity
For those items specified for plan quantity payment, adequate calculations have been made conforming to Section
00140, "General Conditions of Agreement ". I1 no adjustment is required by Item No. 403, "Concrete for Structures ",
additional measurements or calculations will not be required.
Measured in Place
For those items not specified for plan quantity payment, measurement will be made in place.
403.13 Payment
For all structural elements in unit price contracts specified for payment when measured by the cubic yard, the quantity to be paid
for will be actual field measurements of the quantity indicated, except as may be modified by the following:
Plan quantities will be adjusted:
(1) When a complete structure element has been erroneously included or omitted from the plans, the quantity shown on
the plans for that element will be added to or deducted from the plan quantity and included for payment. A complete
structure element will be the smallest portion of a total structure for which a quantity is included on the plans. Quan-
tities revised in this manner will not be subject to the provisions of Section 00140, "General Conditions of Agreement ".
(2) When the plan quantity for a complete structure element is in error by 5 percent or more, a recalculation will be made
and the corrected quantity included for payment. Quantities revised in this manner will not be subject to the provi-
sions of Section 00140, "General Conditions of Agreement ".
When quantities are revised by a change in design, the plan quantity will be increased or decreased by the amount
involved in the design change. Quantities revised in this manner will be subject to the provisions of Section 00140,
"General Conditions of Agreement ".
Payment for increased or decreased costs due to a change in design, on those items measured in "Each ", by the "Square Foot ",
"Square Yard" or "Linear Foot" will be determined by provisions of Section 00140, "General Conditions of Agreement ".
Payment for additional concrete required for slab on panel or T -beam construction due to adjustment of the profile grade line will
not be made under "Additional Work" as provided in Section 00140, "General Conditions of Agreement ".
The unit prices bid for the various classifications of concrete shown shall be full compensation for furnishing, hauling and mixing
all concrete material; placing, curing and finishing all concrete; all grouting and pointing; furnishing and placing drains; furnishing
and placing metal flashing strips; furnishing and placing expansion joint material required by this item and for all forms and
falsework, labor, tools, equipment and incidentals necessary to complete the work.
Payment will be made under appropriate bid items where structural concrete is used as indicated and included in the bid
Box culverts shall be paid for under Item No. 559, "Box Culverts ".
Payment will be made under one of the following:
Pay Item No. 403 - Structural Concrete — Per Cubic Yard.
Pay Item No. 403 -B: Foundation Seals — Per Cubic Yard.
Pay Item No. 403 -C: Foundations — Per Cubic Yard.
Pay Item No. 403 -D: Columns — Per Cubic Yard.
Pay Item No. 403 -E: Bridge Abutments and Walls — Per Cubic Yard.
Pay Item No. 403 -F: Bridge Decks — Per Square Yard.
Pay Item No. 403 -G: Structures — Per Cubic Yard.
403 04/17/86 Page 8
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501.1 Description
This item shall consist of the furnishing and installation of pipe by the methods of jacking or boring as indicated and in conformity
with this specification. This item shall ,also Include, but shall not be limited to, the excavation, handling, removal and disposal of
all materials encountered in the "Jacking or Boring Pipe ".
501.2 Materials
If the Contractor desires, he may use a cutting edge of steel plate around the head end of the pipe extending a short
distance beyond the end of the pipe with inside angles or lugs to keep the cutting edge from slipping back onto the
pipe.
(1) Pipe
Carrier pipe and encasement pipe shall conform to Item No. 510, "Pipe" and of the size, type materials, thickness
and class indicated.
(2) Grout
Grout for voids shall consist of 1 part Portland Cement and 4 parts of fine, clean sand mixed with water.
501.3 Construction Methods
Item No. 501
Jacking or Boring Pipe
(1) General
Construction shall be undertaken in such a manner that will not interfere with the operation of the railroad, street,
highway or other facility and shall not weaken or damage any embankment or structure. During construction opera-
tions, barricades and lights to safeguard traffic and pedestrians shall be furnished and maintained as directed by the
Engineer, until such time as the backfill has been completed and then shall be removed from the site.
The Contractor shall furnish for the Engineer's approval a plan, showing his proposed method of handling, including
the design for the jacking or boring head, jacking or boring support or back stop, arrangement and position of jacks,
pipe guides, grouting plan, permit for disposal of excavated material, for jacking or boring complete in assembled
position. The approval of this plan by the Engineer will not relieve the Contractor from his responsibility to obtain the
specified results.
The ends of encasement pipes shall be closed with brick, concrete blocks or stoves, sufficient to prevent intrusion of
backlit!, etc. into the encasement, but fitted loosely enough or provided with adequate weep holes to facilitate the
escape of water from the encasement should the carrier pipe leak or fail within the encasement.
(2) Jacking
If the grade of the pipe at the jacking end is below the ground surface, suitable pits or trenches shall be excavated for
the purpose of conducting the jacking operations and for placing end joints of the pipe. Such work shall be sheeted
securely and braced in a manner to prevent earth caving and to provide a safe, stable work area.
Heavy duty jacks suitable for forcing the pipe through the embankment shall be provided. In operating jacks, even
pressure shall be applied to all jacks used so That pressure will be applied to the pipe uniformly around the ring of the
pipe. A suitable jacking frame or back stop shall be provided. The pipe to be jacked shall be set on guides properly
braced together, to support the section of the pipe and to direct it in the proper line and grade. The whole jacking
assembly shall be placed so as to line up with the direction and grade of the pipe. In general, embankment material
shall be excavated just ahead of the pipe and material removed through the pipe and the pipe forced through the
embankment with jacks, into the space thus provided.
The excavation for the underside of the pipe, for at least 'h of the circumference of the pipe, shall conform to the
contour and grade of the pipe. A clearance of not more than 2 inches may he provided for the upper half of the pipe.
This clearance is to be tapered off to zero at the point where the excavation conforms to the contour of the pipe.
The distance that the excavation shall extend beyond the end of the pipe depends on the character of the material,
but it shall not exceed 2 feet fn any case. This distance shall be decreased if the character of the material being
excavated makes it desirable to keep the advance closer to the end of the the pipe.
The pipe, preferably, shall be jacked from the low or downstream end. Lateral or vertical variation in the final position
of the pipe from the line and grade established by the Engineer will be permitted only to the extent of 1 inch in 10 feet,
provided that such variation shall be regular and only in one direction and that the final grade or flow line shall be in
the direction indicated.
Page 1 04 17,86 501
When jacking of pipe is once begun, the operation shall be carried on without interruption, insofar as practical, to
prevent the pipe from becoming firmly set in the embankment. I I
Any pipe damaged in jacking operations shall be removed and replaced by the Contractor at his entire expense.
Immediately after jacking is complete and the carrier or encasement pipe is accurately positioned and approved for
line and grade, the clearance space between the pipe and soil shall be completely tilled by pressure grouting for the
entire length of the installation.
The pits or trenches excavated to facilitate jacking operations shall be backfilled immediately after the jacking of the
pipe has been completed.
(3) Boring
The boring shall proceed from a pit provided for the boring equipment and workmen. Excavation for pits and installa-
tion of shoring shall be as outlined above under "Jacking ". The location of the pit shall meet the approval of the
Engineer. The holes are to be bored mechanically. The boring shall be done using a pilot hole. By this method an
approximate 2 inch pilot hole shall be bored the entire length of the crossing and shall be checked for line and grade
on the opposite end of the bore from the work pit. This pilot hole shall serve as the centerline of the larger diameter
hole to be bored. Excavated material will be removed from the working pit and disposed of properly. The use of water
or other fluids in connection with the boring operation will be permitted only to the extent to lubricate cuttings Jetting
will not be permitted.
In unstable soil formations, water or processed drilling fluid, containing colloidal material such as bentonite, may be
used to consolidate the drill cuttings, seal the walls of the hole and furnish lubrication to facilitate removal of the
cuttings from the bore. Water Jetting will not be permitted.
Immediately after boring is complete and the carrier or encasement pipe is accurately positioned and approved for
line and grade, the clearance space between the pipe and soil shall be completely filled by pressure grouting for the
entire length of the installation.
The pits or trenches excavated to facilitate these operations shall be backfilled immediately alter the work has been
completed.
Allowable variation from line and grade shall be as specified under "Jacking ". Overcutting in excess of 1 inch shall be
remedied by pressure grouting the entire length of the installation.
Where the characteristics of the soil, the size of the proposed pipe or the use of a monolithic sewer, would make the
use of tunneling more satisfactory than jacking or boring, a tunneling method may be used. Tunneling shall conform
to Item No. 502, "Tunneling".
The pits or trenches excavated to facilitate this operation shall be backfilled immediately after work has been com-
pleted. The backhll shall be compacted to 95 percent of the maximum dry density as determined In accordance with
SDHPT Test Method Tex -114 -E within street right of way.
The Contractor may submit dry boring method for approval by the Engineer.
501.4 Measurement
Jacking or boring pipe will be measured by the linear foot of pipe complete In place. Such measurement will be made between
the ends of the pipe along the central axis as installed.
501.5 Payment
The work performed and materials furnished as prescribed by this item, measured as provided under "Measurement" will be paid
for at the unit price bid per linear foot for "Jacking or Boring Pipe" or as the case may be, of the type, size and class indicated,
which once shall be full compensation for furnishing all materials, pipe, liner materials required, for all preparation, hauling and
installing of same and for all labor, tools, equipment and incidentals necessary to complete the work, including excavation, back -
filling and disposal of surplus material.
Payment will be made under:
Pay Item No. 501: Jacking or Boring
End
501 04/17/86 Page 2
Inch Pipe — Per Linear Foot.
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504.1 Description
This item shall consist of the removal and replacement of surfacing, furnishing of materials, adjusting existing structures, valve
boxes, pull boxes, survey monuments, water meters and manholes to the locations or elevations as Indicated or as directed by
the Engineer and in accordance with these specifications.
504.2 Materials
Precast reinforced concrete manhole cones and straight sections, concrete rings, bricks and castings in good condition removed
from the structures to be adjusted may be reused with the written approval of the Engineer. Additional materials required shall
conform to the details indicated.
(1) Concrete
Concrete shall be Class A conforming to Item No. 403, "Concrete for Structures ".
(2) Mortar
Mortar shall conform to Item No. 510, "Pipe".
Mortar shall be mixed in proportions 011 part cement to 3 parts sand, by volume based on dry materials.
504.3 Construction Methods
All adjustments shall be completed prior to the placement of the final surface.
Manhole, pull box and valve box components to be reused shall be carefully removed and the contact areas shall be cleaned of
all mortar, concrete, grease and sealing compounds. Any Items broken in the process of removal and cleaning shall be replaced
in kind by the Contractor at his expense.
If the adjustment involves lowering the top of a manhole, a sufficient depth of precast concrete rings or brick courses shall be
removed to permit reconstruction. The mortar shall be cleaned from the top surface remaining in place and from all brick or
concrete rings to be reused and the manhole rebuilt to the required elevation. The manhole ring and cover shall then be installed
with the top surface conforming to the proposed grade.
If the adjustment involves slight raising the elevation of the top of the manhole, the top of brick or concrete ring shall be cleaned
and built up vertically to the new elevation, using new or salvaged concrete rings or bricks and the ring and cover installed with
the lop suriace conforming to the proposed grade. If the adjustment requires more than 1 loot of rings or brick, the manhole cone
shall be reconstructed to make the adjustment.
If the adjustment Involves slight lowering or raising a valve box or survey monument box, the outside shell of a slip or screw
casing shall be excavated to its full length and adjusted to the proposed grade. Pipe castings shall be excavated to the depth
required to cut from or weld a section to the casing as may be needed to adjust the ring to the proposed elevation. The ring shall
be welded to the casing prior to pouring concrete around the casing. II the adjustment requires more than 1 foot of rings or brick,
the manhole cone shall be adjusted or reconstructed to make the adjustment.
If the adjustment involves lowering or raising or a horizontal reassignment of a water meter and the property owner's cut off valve,
this work shall be completed in accordance with Standard 511 -7 or as directed by the Engineer. After the adjustments have
been completed and cured, structures within the paved area shall be paved as indicated.
504.4 Measurement
The work performed and materials furnished as prescribed by this item as indicated shall be measured per each.
Payment will be made under one of the following:
Pay Item No. 504 —ISM: Adjusting Storm Sewer Manholes to Grade — Per Each.
Pay Item No. 504 —I WM: Adjusting Water Meters — Per Each.
Pay Item No. 504 -1 W W: Adjusting Wastewater Manholes — Per Each.
Pay Item No. 504 -3G: Adjusting Gas Valve Boxes to Grade — Per Each.
Item No. 504
Adjusting Structures
504.5 Payment
The work performed and materials furnished and measured as provided above, will be made at the unit price bid per each, which
price shall be full compensation for furnishing all materials, handling, placing, labor, tools, equipment and incidentals necessary
to complete the work.
Page 1 04/17/86 504
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Pay Item No. 504 -3S: Ad usting City of Austin Survey Monument Boxes to Grade — Per Each.
Pay Item No. 504 -3W: Ad'usting Water Valve Boxes to Grade — Per Each.
Pay Item No. 504 -4PB: Ad usting Pull Boxes to Grade — Per Each.
504 04/17/86 Page 2
Item No. 510
Pipe
510.1 Description
This item shall consist of furnishing all pipe and /or materials for constructing pipe mains, sewers, laterals, stubs, inlet leads.
service connections and culverts, including all applicable work such as excavating, bedding, jointing, backlilling materials, tests,
etc., prescribed under this item in accordance with the provisions of Edwards Acquifer Protection ordinance when applicable.
The pipe shall be of the sizes, types, class and dimensions indicated or as designated by the Engineer and shall include all joints
or connections to new or existing mains, pipes, sewers, manholes, inlets, structures etc., as may be required to complete the
work in accordance with specifications and standard published practices of the trade associations for the material spebified and
to the lines and grades indicated. This item shall govern for any necessary pumping or bailing and drainage and all sheeting and
bracing of trench walls. Unless otherwise provided. this item shall govern for the removal and disposition of trees, stumps
and other obstructions, old structures or portions thereof, such as house foundations, old sewers, masonry or concrete walls, the
plugging of the ends of abandoned piped utilities cut and left in place and the restoration of existing utilities damaged in the
process of excavation, cutting and restoration of pavement and base courses, the furnishing and placing of select bedding,
backlilling and cement or lime stabilized backlit!, the hauling and disposition of surplus materials, bridging of trenches and other
provisions for maintenance of traffic or access as indicated.
510.2 Materials
(1) Concrete
Concrete shall conform to Item No. 403, "Concrete for Structures ". I I
(2) Coarse Aggregate
Coarse aggregate shall conform to Item No. 403, "Concrete for Structures" or one of the following:
(a) Pipe Bedding Crushed Stone
Pipe bedding shall be clean granular crushed limestone, free of mud, clay, vegetation or other debris,
conforming to ASTM C 33 for stone quality. Size gradation shall be as follows:
GRADATION TABLE
SIEVE SIZE PERCENT RETAINED BY WEIGHT
1'/e" 0
1" 0 -10
h" 40 -85
#4 90 -100
#8 95 -100
(b) Foundation Rock
Foundation rock shall be well graded coarse aggregate ranging in size from 2 to 8 inches
(c) Flexible Base
Flexible base shall conform to Item No. 210, "Flexible Base ".
(3) Fine Aggregate
(a) Concrete and Mortar Sand
Fine aggregate shall be Grade 1 and shall conform to Item No. 403, "Concrete for Structures ".
(b) Bedding Sand
Sand for use as pipe bedding shall be clean, granular and homogeneous material composed mainly of mineral
matter, free of mud, silt, clay lumps or clods, vegetation or debris. The material removed by decantation
SDHPT Test Method Tex - 406 -A, plus the weight of any clay lumps, shall not exceed 4.5 percent by weight
Page 1' 04/17/86 510
(4) Soil Cement
(5)
(
The average electrical resistance when water - saturated shall be at least 1,800 ohm/cm by the single probe
method, with no single test reading lower than 1,500 ohm /cm. Size gradation of sand for bedding shall be as
follows:
SIEVE SIZE
'A"
GRADATION TABLE
PERCENT RETAINED BY WEIGHT
0
#60 75 -100
# 100 95 -100
Soil cement bedding shall consist of a mixture of approved soil, cement, water and approved admixtures. The soil
cement mixture shall have a minimum 14 day compressive strength of 120 psi and a maximum shrinkage of 5 per-
cent. The mix design and the results of mix testing, both done by an independent testing laboratory acceptable to the
Owner, shall be submitted to the Engineer for approval prior to construction.
The water content shall not exceed that required to provide a mix that will flow, can be pumped and will maintain the
soil in suspension while being placed. The soil cement bedding shall be placed such that all voids are filled. Soil for
the soil cement bedding shall meet the following requirements:
a A minimum of 80 percent by dry weight shall pass a #4 sieve.
b. Between 5 percent and 30 percent shall pass a #200 sieve.
c. The soil material shall have a plasticity index of 3 or less.
d. The maximum size of any clay balls in the soil shall be l/2 inch.
Class C or Class F fly ash may be used as an admixture. The fly ash shall meet the requirements of ASTM C 595,
C 618 and the supplier's certificate as to the analysis and composition shall be furnished.
Batching equipment shall be provided to obtain the proper weights of soil, cement, water and admixture. All measur-
ing devices shall be sensitive to a 2 percent variation above or below the actual weights required.
The mixers used for mixing the soil cement bedding shall be designed and operated so that the soil cement dis-
charged from the mixer is uniform in compaction and consistency throughout each batch.
Pea Gravel
Pea gravel bedding shall be clean washed material, hard and insoluble in water, free of mud, clay, silt, vegetation or
other debris. Stone quality shall meet ASTM C 33. Size gradation shall be as follows:
(6) Select Backfill or Borrow
510 04/17/86 Page 2
SIEVE SIZE
3 A"
GRADATION TABLE
PERCENT RETAINED BY WEIGHT
0
0 -25
1" 90 -100
This material shall consist of borrow or suitable material excavated from the trench which has a plasticity index of
less than 20, a moisture content which does not exceed 2 percent from optimum as determined in accordance with
SDHPT Test Method Tex -114 -E and free of stones or rocks over 8 inches.
All suitable materials from excavation operations not required for backfilling the trench shall he placed in embank-
ments, if applicable. All unsuitable materials should be dried or modified to make them suitable for use, as required.
Cement Stabilized Backfill
When indicated or directed by the Engineer, all backfill shall be with cement - stablized backfill rather than the usual
materials. Unless otherwise indicated, cement stablized backfill material shall consist of a mixture of the dry constitu-
1
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ents described for Class J Concrete. The cement and aggregates shall be thoroughly dry-mixed with no water added
to the mixture except as may be directed by the Engineer.
(8) Pipe
General
All water pipe installed within dedicated utility easements or any other privately owned property shall be Ductile Iron
Pipe of Thickness Class 52 wrapped as Indicated, except for sizes over 24 Inches, Concrete Pressure Pipe, Steel
Cylinder Type, conforming to the requirements of AWWA C -301 will be acceptable. There may be no service con-
nections to Concrete Pressure pipe Installed In these areas. All service tubing (3/4 inch thru 2 inches) installed in any
such private property shall be 150 psi annealed seamless Type K copper tubing with no sweat or soldered joints.
The quality of materials, the process of manufacture and the finished pipe shall be subject to Inspection and approval
by the Engineer at the pipe manufacturing plant and at the project site prior to and during installation.
(a) Asbestos Cement
1. Asbestos cement water pipe, couplings and fittings shall conform to AWWA C -400, Class 200 asbestos
cement wastewater pipe, couplings and fillings shall conform to ASTM C 428, Class 2400, Type II.
2. Size
Nominal sizes from 6 to 12 inches.
3. Pipe and Gasket Marking
All components of AC pipe shall be marked with the manufacturer's identification, size, year of manufac-
ture and the class of pipe.
(b) Iron Pipe
Ductile Iron Pipe shall conform to AWWA C -151 of the class indicated. Pipe shall be cement lined and outside
standard coated conforming to AWWA C -104.
1. Ductile Iron and Gray Iron Fittings
Fittings shall conform to AWWA C -110 and may be ball and spigot, mechanical joint, flanged or push -on
joint. Fittings shall be cement lined and outside standard coated in accordance with AWWA C -104.
2. Joint Materials
All gaskets shall conform to AWWA C -111. Jointing of slipjoint iron pipe shall, without exception, be
accomplished with the natural or synthetic rubber gaskets of the manufacturer of that particular pipe
being used. Ajoint lubricant shall be used and applicable recommendations of the manufacturer shall be
followed.
Bolts for flanged or mechanical joints shall be stainless steel or corrosion resistant, low alloy, high
strength steel bolts. Tee -head bolts, hex -head bolts and all nuts shall be marked for ready visual identifi-
cation and conform to AWWA C -111.
In the event that corrosion resistant bolts are not available and the use of carbon steel bolts is permitted,
they must be coated as follows:
Nuts and bolts shall be immersed in Koppers Super Tank Solution, inserted and tightened in the
joint while still wet and all exposed parts touched up with a brush coat immediately after tighten-
ing. After an interval of at least 1 hour, the entire joint shall be coated with 1 inch minimum thick-
ness of mortar or 2 coats of Koppers Bitumastic #50 or approved equal.
3. Polyethylene Wrap
All iron water pipe and fittings shall be wrapped with 8 -mil (minimum) polyethylene film meeting AWWA
C -105, with all edges and laps taped securely to provide a continuous wrap to prevent contact between
the pipe and the surrounding backtill and bedding material. Repair rips, punctures or other damage to
the polyethylene with adhesive tape.
Page 3 04/17/86 510
(c) Concrete
1. General
510 04/17/86 Page 4
Pipe shall conform to ASTM C 76 for Circular Pipe. Concrete pipe smaller than 12 inches in diameter
shall conform to ASTM C 14, Extra Strength. AU pipe shall be machine made or cast by a process which
will provide uniform placement of the concrete in the form and compaction by mechanical devices which
will assure a dense concrete. Concrete shall be mixed in a central batch plant or other approved hatch-
ing facility from which the quality and uniformity of the concrete can be assured. Transit mixed concrete
will not be acceptable for use in precast pipe. The pipe shall be Class 111 or the class indicated. Storm
sewer pipe shall be of the tongue and groove or 0 -ring joint design. Wastewater pipe shall be of the
0-ring joint design.
2. Marking
Pipe marking shall be waterproof and conform to ASTM C 76. Marking of Life Design shall be included
on wastewater pipe.
3. Minimum Age for Shipment
Pipe shall be considered ready for shipment when It conforms to the tests specified in ASTM C 76.
4. Joint Materials
When constructing storm sewers, the Contractor shall have the option of making joints with either of the
following materials:
a. Mortar
Mortar for joints shall meet the requirements set forth above in "Mortar ".
b. Cold Applied Preformed Plastic Gaskets
Cold Applied Plastic Gaskets shall be suitable for sealing joints of tongue and groove con-
crete pipe. The gasket sealing the joint shall be produced from blends of refined hydrocar-
bon resins and plasticizing compounds reinforced with inert mineral filler and shall contain
no solvents, irritating fumes or obnoxious odors. The gasket joint sealer shall not depend on
oxidizing, evaporating or chemical action for its adhesive or cohesive strength and shall be
supplied in extruded rope form of suitable cross section. The size of the plastic gasket joint
sealer shall be in accordance with the manufacturer's recommendations and sufficient to
obtain squeeze -out around the joint. The gasket joint sealer shall be protected by a suitable
removable wrapper designed that may be removed longitudinally without disturbing the joint
sealer to facilitate application.
The chemical composition of the gasket joint sealing compound as shipped shall meet the
following requirements:
Composition Test Method Typical Analysis
Bitumen (petroleum
plastic content)
(% by weight) ASTM D 4 50 -70
Ash -inert Mineral Water
(% by weight) Tex -526 -C 30 -50
Volatile Matter (at 325 F)
(% by weight) Tex -506 -C 2.0 Maximum
The gasket joint sealing compound when Immersed for 30 days at ambient room tempera-
ture separately in 5 percent solution of caustic potash, a mixture of 5 percent hydrochloric
acid, a 5 percent solution of sulfuric acid and a saturated H solution shall show no visible
deterioration.
The physical properties of the gasket joint sealing compound as shipped shall meet the fol-
lowing requirements:
1
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5. Bends
Property
6. Sulfide and Corrosion Control
,Typical Analysts
Test Method - Minimum Maximum
Specific Gravity at 77 F ASTM D 71 , 1.20 1.35
Ductility at 77 (cm) Minimum Tex -503 -C 5.0
Softening point at 77 F Minimum Tex -505 -C 320 F
Penetration: I
32 F (300 g) 60 sec Tex -502 -C 75
77 F (150 g) 5 sec Tex - 502 -C 50 120
115 F (150 g) 5 sec Tex -502 -C 150
Flashpoint C.O.C. F Tex- 502 -C 600 F
Fire Point C.O.C. F Tex -504 -C 625 F
When constructing wastewater lines, the Contractor shall use 0 -ring gasket Joints conforming to ASTM
C 443. Just before making a joint, the ends of the pipe shall be clean, dry, free of any foreign matter,
lumps, blisters, excessive coal -tar coating and grease or oil and shall be wire brushed. The gasket and
the inside surface of the bell shall be lubricated with a light film of soft vegetable soap compound to
facilitate assembly of the joint. Rubber 0-ring gaskets shall be stretched uniformly in the joint. No hori-
zontal or vertical angles in the alignment of waste water pipes shall be permitted unless indicated. The
spigot shall be centered in the bell, the pipe pushed uniformly home and brought into true alignment.
Bedding material shall be placed and tamped against pipe to secure the Joint.
When horizontal or vertical angles in the alignment of storm sewers are indicated, a bend shall be
constructed with a minimum of a 6 inch reinforced concrete collar or as indicated. The bend shall
be prefabricated. All bends shall be water tight, have a smooth flow line and be equal in strength to
the adjacent pipe.
All concrete pipe used for wastewater installations shall be protected from sulfide and corrosion
damage by using limestone aggregate or wall thickness pipe which meets the 100 year life design.
(d) Concrete Steel Cylinder (CSC) Pipe
1. General Requirements
The Contractor shall submit to the Engineer for approval along with other required data a tabu-
lated layout schedule with reference to the stationing and grade lines to be used.
The manufacturer shall furnish all fittings and special pieces required for closures, bends,
branches, manholes, air valves, blowoffs and connections to main line valves and other fittings as
indicated.
Each pipe length, fitting and special joint shall have plainly marked on the bell end of the pipe, the
head condition for which it is designed. In addition, marking will be required to indicate the location
of each pipe length or special joint in the line and such markings will be referenced to the layout
schedules and drawings and submitted for approval.
Hydrostatic testing of concrete steel cylinder fittings during fabrication will not be required. '
2. Design and Inspection .
Where not otherwise Indicated, concrete steel cylinder pipe shall be Class 150, designed to with-
stand a vacuum of not less than 28 feet of water in addition to other loads. Valve reducers, tees
and outlets from a pipe run shall be designed and fabricated so that all stresses are carried by the
steel plate forming the fitting or outlet.
Concrete steel cylinder pipe shall meet one of the following specifications:
AWWA C -301 — Any Size
AWWA C -303 — 24 Inch maximum size
All pipe flanges shall conform to AWWA C -207, requirements for standard steel flanges of pres-
sure classes corresponding to the pipe class.
Pipe to be installed in a tunnel or encasement shall be manufactured with 1 Inch (hick by 24 inch
wide skid bands of mechanically impacted mortar in addition to the normal coating.
Page 5 04/17/86 510
(e) Polybutylene Tubing
510 04/17/86 Page 6
All concrete steel cylinder fittings shall be constructed of steel plate of adequate strength lo with-
stand both Internal pressure and external loading. Rod reinforcing shall not be used to figure the
required steel area. The fittings shall have a concrete lining and 1 inch minimum coating of cement
mortar, except that centrifugally spun lining need not be reinforced.
Minimum lining thickness shall be 'A inch for 16 inch pipe and 3 4 inch for sizes larger than 16 inch
pipe. Where it is impractical to place such concrete protection on interior surfaces of small outlets,
2 coats of "Bitumastic Tank Solution" shall be applied.
No fitting shall be made by cutting of standard pipe, except that outlets of less than 75 percent of
the pipe diameter may be placed in a standard pipe. Beveled spigots may be placed on standard
pipe.
3. Joint Materials
Joints shall be of the rubber gasket type conforming to the applicable standards. The inside and
outside recesses between the bell and spigot shall be completely filled with Cement Grout in ac-
cordance with the pipe manufacturer's recommendations. Grout materials for jointing such pipe,
unless otherwise indicated, shall be as described herein.
All polybutylene (PB) plastic tubing shall be pressure rated at 250 psi working pressure and must bear
the National Sanitation Foundation seal of approval for potable water service. The color of polybutylene
tubing shall be blue.
1. Applicable Specifications
All polybutylene plastic tubing shall conform to:
ASTM D 2581 — Specification for Polybutylene Molding and Extrusion Materials.
ASTM D 2666 — Specification for Polybutylene (PB) Plastic Tubing.
2. Material Requirements
The polybutylene plastic tubing shall be homogenous throughout and free of visible cracks, holes,
foreign inclusions or other injurious defects. It shall be uniform in color, opacity, density and other
physical properties. The polybutylene plastic extrusion compound shall meet the requirements of
Type II, Grade I, ASTM D 2581. Clean, reworked material, generated from the manufacturer's own
tubing production may be used by the same manufacturer, as long as the tubing produced meets
all the requirements of this specification.
3. Functional Requirements
The polybutylene tubing shall not fail, balloon, burst or weep (this means a slow leak) as defined in
Section 5 of ASTM D 1598, when tested in accordance with Section 7.6 of ASTM D 2666 (Sus-
tained Pressure Test). The minimum burst pressure shall be 440 psi at 73.4 F determined in accor-
dance with ASTM D 1599. The time of testing of each specimen shall be between 60 and 70
seconds. The polybutylene tubing shall be rated for use with water at 73.4 F at maximum working
pressure of 250 psi. The tubing shall satisfactorily couple to standard brass water works flare fit-
tings by ordinary cold methods, with no heating necessary. Permanent marking on the tubing shall
include the following information at intervals of not more than 5 feet:
Nominal tubing size.
The type of plastic material, i.e., PB2110.
The Dimension Ratio (DR) or the pressure rating in psi for water at 73.4 F (e.g., DR 9, 250
psi). Tubing shall conform to ASTM D 2666.
The manufacturer's name or trade mark and code. It shall also include the seal of approval
(NSF mark) of the National Sanitation Foundation.
The tubing shall be standard copper tube size equal to DR9; standard sizes, dimensions and toler-
ances shall be as follows:
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1 +
(f) Polyethylene Tubing
1. General
Nominal Outside Diameter Wall Thickness
Tube Size Average Tolerance Minimum Tolerance
(inches) (Inches) (inches) (Inches) (Inches)
3 /4 0.875 ±008 0.097 +.010
1 1.125 '.010 0.125 +.012
11/4 1.375 -.010 0.153 +.015
1' 1.625 ±.012 0.181 +.018
2 2.125 '_.012 0.236 +.024
All polyethylene (PE) plastic tubing shall be high density, high molecular weight plastic tubing,
pressure rated at 200 psi working pressure and must bear the National Sanitary Foundation seal
of approval for potable water service.
When tested for Environmental Stress Cracking, the PE tubing shall not show any loss of pressure
in the 6 specimens tested for 3 hours in accordance with the requirements of ASTM D 2737 using
the test pressure of 400 psi at 73.4 F.
The minimum burst pressure shall be 630 psi at 73.4 F determined in accordance with ASTM
D 1599, latest revision. The time of testing of each specimen shall be between 60 and 70 seconds.
The tubing shall not fall, balloon, burst or weep as defined in ASTM D 1598, latest revision, when
tested in accordance with the Sustained Pressure Test Method of ASTM D 2737 but under the
following test conditions:
Temperature Time Pressure
73.4 F 1,000 hours 400 psi
100 F 1,000 hours 330 psi
2. Markings
Permanent marking on the tubing shall include the following at intervals of not more than 5 feet*
Nominal tubing size
The type of plastic material, i.e., PE 3408.
The Standard Dimension Ratio (SDR) and the pressure rating in psi for water at 73 4 F (e.g.,
SDR -9, 200 psi).
ASTM D 2737 designation.
The manufacturer's name or trademark code and seal of approval (NSF mark) of the Na-
tional Sanitation Foundation.
3. Tube Size
PE tubing shall be standard copper tube size outside diameter, with Standard Dimension Ratio
(SDR) of 9. Standard sizes, dimensions and tolerances shall be as follows:
Nominal Outside Diameter Wall Thickness
Tube Size Average Tolerance Minimum Tolerance
(inches) (inches) (Inches) (inches) (inches)
3 0.875 ±0.004 0.097 +0.010
1 1.125 *_0.005 0.125 +0.012
11/4 1.375 ±0.005 0.153 +0.015
11/2 1.625 -0.006 0.181 +0.018
2 2.125 -0.006 0 236 +0 024
I
Page 7 04/17/86 1 510
510 04/17/86 Page 8
(g) Copper Tubing
All copper service tubing shall be annealed seamless Type K water tube rated at 150 psi working pres-
sure. The tubing shall be homogenous throughout and free from cracks, holes, crimping, foreign inclu-
sions or other defects. It shall be uniform in density and other physical properties.
Nominal Outside Diameter Wall Thickness
Tube Size Average Tolerance Minimum Tolerance
(Inches) (inches) (Inches) (Inches) (inches)
vF2 0.625 ±0.0025 0.049 ±0.004
1/4 0.875 ±0.003 0.065 ±0.0045
1 1.125 ±0.0035 0.065 ±0.0045
11/4 1.375 ±0.004 0.065 ±0.0045
11/2 1.625 ±0.0045 0.072 ±0.005
2 2.125 ±0.005 0.083 ±0.007
(h) Service Connection Fittings
All fittings used in customer service connection — tapping mains, connecting meters, etc. — must be
currently listed in the "Standard Products List" or shown on the Standards.
(i) Brass Goods
All brass stops, couplings, bends, connections, nipples and miscellaneous brass pipe fittings and ac-
cessories used in meter connections, copper service lines, air release piping assemblies and wherever
needed in the water distribution system, shall conform to the standards set within AWWA C -800, except
as herein modified or supplemented.
Unless otherwise noted, the goods described herein shall be fabricated of standard Red Brass (Water-
works Brass) consisting of 85 percent copper and 5 percent each of tin, lead and zinc.
Exposed threads shall be covered with plastic caps or sheeting to protect the threads.
Brass Goods of each type and class shall be compatible with other fittings in common usage for similar
purposes. Where not otherwise indicated, all such materials shall meet the following requirements:
Corporation stop thread (where used) shall conform to Table 1, Figure 1, AWWA C -800, com-
monly called the Mueller Thread. Corporation stops with iron pipe threads are also permitted. Iron
pipe threads shall conform to ANSI B2, 1 - 1969 and Table 9, Figure 9, of AWWA C -800.
Copper fittings threads shall conform to Table 2 and 3, Figure 2 and 3 of AWWA C -800 and ANSI
B1.1960 with approximate tolerance of Class 2.
Flanges shall conform to ANSI 816.1, Class 125 (or Class 250 where so noted), as to dimensions,
drillings, etc.
Brass pipe shall conform to the weight and dimensions of Table 2 in the appendix for AWWA
C -800.
All fittings shall be suitable for use at hydrostatic working pressures up to 150 psi.
(j) PVC — Plumbing Pipe
1. General
Polyvinyl chloride pipe and fittings shall be Type I, Grade 1, schedule 40, 200 psi conforming to the
City of Austin plumbing code, CS 270 and PS 21.
2. Physical Requirements
Pipe shall be extruded from 100 percent virgin unplasticized Type 1, Normal Impact Polyvinyl
Chloride (PVC) to conform to the following minimum physical properties:
Specific Gravity 1.36 -1.40
Tensile Strength at 78 F (PSI) 7,500
Compression Strength (PSI) 9,400
Modulus of Elasticity 410,000
Coefficient of Linear Expansion 6.70 K/Cx10'
s '
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Izod Impact at 78 F (ft. lbs. /in. notch) 0.7 -1.5
Buming Rate Self Extinguishing
Heat Distortion at 264 PSI 160 F
3. Visual Inspection
Pipe shall be homogenous throughout and tree from visible cracks, holes or foreign materials.
Pipe shall be free from blisters, wrinkles and dents. This inspection shall be made on each length
of pipe.
4. Dimensions and Tolerance
Dimensional measurements of plastic pipe will be made on the outside diameter, wall thickness
and out -of- roundness. Pipe not meeting these requirements shall be rejected. Dimensions and
tolerances shall be in accordance with Commercial Standard CS 256 -63.
5. Marking and Identification
All PVC pipe shall be continuously and permanently marked with the following information: manu-
facturer's name, pipe size, class or schedule, type of pipe and material. When used for potable
water line, the pipe shall be stamped with the National Sanitation Foundation seal for potable
water pipe.
6. PVC Pipe Fittings
All fittings shall be of schedule 40 or heavier plasticized polyvinyl chloride.
7. Inspection and Testing of Materials
Test certificates from a testing laboratory and/or guarantee by the manufacturer satisfactory to the
Engineer shall be furnished for the pipe and fittings to be incorporated in the work. As required by
the Engineer, certificates shall be submitted for other materials to be incorporated in the work.
These certificates, stating that the materials meet the requirements of the specifications, will be
required before permission is given to incorporate such materials in the work.
The cost of this inspection and testing will be paid for by the Contractor and shall be included in his
price bid for such materials complete in place.
Any material brought on the ground for use in the work and deemed by the Engineer as unsuitable
or not in conformity with the specifications shall be removed from the site of the work by the Con-
tractor upon receipt of written notice from the Engineer to that effect.
8. Handling of PVC Pipe and Fittings
The Contractor is cautioned to exercise care in handling, loading, unloading and storing PVC pipe
and fittings. All PVC pipe and fittings will be stored under cover before using and will be trans-
ported in a vehicle with a bed long enough to allow the length of pipe to lay flat so as not to be
subject to undue bending or concentrated extemal load at any point. Any section of pipe that has
been dented or damaged will be discarded until said section of pipe is cut out and rejoined with a
coupling.
9. Threaded Connections
On PVC to metal connections, the Contractor shall work the metal connections first. A nonharden-
ing pipe dope such as Permatex #2 or equal shall be used on all threaded PVC to metal joints and
light wrench pressure is all that should be used.
Where threaded PVC connections are required, use threaded PVC adapters into which the pipe
may be welded.
(k) Polyvinyl Chloride Water Pipe
1. General
All polyvinyl chloride (PVC) water pipe shall be of the rigid (UNPLASTICIZED) type and must bear
the National Sanitation Foundation seal of approval for potable water pipe. Each joint of pipe shall
consist of single continuous extrusion; bells or other components attached by solvent welding are
not acceptable. Pipe shall be pressure rated at 200 psi (SDR -14), or 150 psi (SDR -18) as
indicated.
Page 9 04/17/86 510
(1)
Pipe shall have push -on, rubber gasket joints of the bell and spigot type with thickened integral
bells or of the double spigot type with thickened coupling sleeves with rubber gasket joints. The
wall thickness of each pipe bell and joint coupling must be greater than the standard pipe barrel
thickness. Clearance must be provided in every gasket joint for both lateral pipe deflection and for
linear expansion and contraction. Solvent welding of PVC water pipe shall not be allowed.
All fittings shall conform to AWWA C -110.
2. Applicable Specifications
Except as modified or supplemented herein, PVC pipe shall meet the following standards:
AWWA C -900 for 4 inch to 12 inch PVC Plastic Pipe, having Cast Iron Pipe size outside
diameter.
3. Material Requirements
All pipe and fittings shall be made from clean, virgin, NSF approved, Class 12454B PVC. Clean
reworked materials generated from the manufacturer's own production may be used within the
current limits of the referenced AWWA C -900.
4. Physical Requirements
Pipe shall be extruded from 100 percent virgin unplasticized Type 1, Normal Impact Polyvinyl
Chloride (PVC) to conform to the following minimum physical properties:
Specific Gravity 1.36 -1.40
Tensile Strength at 78 F (psi) 7,500
Compression Strength (psi) 9,400
Modulus of Elasticity 410,000
Coefficient of Linear Expansion 6.701VCx10
Lod Impact at 78 F, (ft. Ibs./in. notch) 0.7 -1.5
Burning Rate Sell Extinguishing
Heat Distortion at 264 (psi) 160 F
Polyvinyl Chloride (PVC) Pipe (Nonpressure) and Fittings
1. General
510 04/17/86 Page 10
Wall Thickness
Nominal Outside Diameter DR14
Tube Size Average Tolerance Minimum Tolerance
(inches) (Inches) (inches) (Inches) (inches)
4 4.800 ±0.009 0.343 +0.041
6 6.900 ±0.011 0.493 +0.059
8 9.050 ±0.015 0.646 +0.078
10 11.100 ±0.015 0.793 +0.095
12 13.200 ±0.015 0.943 +0.113
Where PVC sewer or wastewater pipe is indicated, it shall conform to ASTM D 3034, Type PSM or
ASTM F 679 Type T -1 Wall Polyvinyl Chloride (PVC) sewer pipe and fittings. Minimum wall dimen-
sion ratio shall be SDR 35.
2. Joint Material
PVC pipe shall have elastomeric gasket joints conforming to ASTM D 3212; gaskets to ASTM
F 477.
3. Pipe Markings
Permanent marking on the pipe and fittings shall include the following at intervals of not more Than
5 feet:
Manufacturer's name and /or trademark.
Nominal pipe size.
Minimum cell classification (12454 -B).
1
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1
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1
(m) Steel Pipe
1. Standard Weight
ASTM A 53, Schedule 40.
2. Extra Heavy Weight
Seamless ASTM A 53, Schedule 80.
3. Fittings
Nipples and fillings extra strong Federal Specification WW-N 351 or WW-P 521.
4. Coatings
Black or galvanized as indicated.
Continuous Welded Steel Pipe and Fittings for Water -Pipe
1. General Reference Standards Specification.
a. Specifications of the American Water Works Association (AW WA) listed below shall apply to
this Section.
C -200 Steel Water Pipe 6 Inches and Larger.
C -205 Cement -Mortar Protective Lining and Coating for Steel Water Pipe, 4 inches and
larger, Shop Applied.
C -206 Field Welding of Steel Water Pipe.
C -207 Steel Pipe Flanges for Waterworks Services, Sizes 4 Inches through 144 Inches.
C -208 Dimensions for Steel Water Pipe Fittings.
C -602 Cement -Mortar Lining of Water Pipelines, 4 Inches and Larger in Place.
2. Submittals
(n)
The legend "Type PSM SDR 35 PVC Sewer Pipe ".
Designation ASTM D 3043 or ASTM F 679 Pipe.
a. Furnish shop drawings, product data, design calculations and test reports as described
below:
(1) Certified copies of mill tests confirming the type of materials used in steel plates, mill
pipe flanges and bolts and nuts to show compliance with the requirements of the ap-
plicable standards.
(2) Complete and dimensional working drawings of all pipe layouts. Shop drawings shall
include the grade of material, size, wall thickness of the pipe and fittings, type and
location of fittings and the type and limits of the lining and coating systems of the pipe
and fittings.
Product data to show compliance of all couplings, supports, fittings, coatings and re-
lated items.
(3)
3. Job Conditions
a. The intemal design pressure of all steel pipe and fittings shall be as indicated.
b. The interior of all steel pipe for pot water, 4 inches and larger, shall be cement- mortar lined.
Page 11 04/17/86 510
510 04/17/86 Page 12
4. Manufacturing
a. Description
Pipe shall comply with AWWA C -200.
(1) Circumferencial deflection of all pipe in -place shall not exceed 2.0 percent of pipe
diameter.
5. Fittings
6. Flanges
(2) Diameter
Nominal pipe diameter shall be the inside diameter of lining or pipe barrel, unless
otherwise designated in Job Conditions.
b. Wall Thickness
(1) Steel pipe wall thickness shall be designed for the internal and external loads speci-
fied in this section and as indicated. The cylinder thickness needed to resist internal
pressure shall be based on an allowable stress in the steel equal to Y the minimum
yield stress of the material used.
a. Welded
Fabricated steel fitings shall be of the same material as pipe and shall comply with AWWA
C -208.
a. Flanges shall comply with the requirements of AWWA C -207, Class D or Class E. The class
shall be based on operating conditions and mating flanges of valves and equipment
b. Gaskets shall be cloth- inserted rubber, Vti inch thick.
c. Flanges shall be flat faced with a serrated finish.
7. Pipe Joints
a. Lap Joints for Field Welding
(1)
Lap joints for field welding shall conform to AWWA C -206. This item applies only to
pipes 72 inches in diameter and larger.
(2) The bell ends shall be formed by pressing on a hydraulic expander or a plug die. After
forming, the minimum radius of curvature of the bell end at any point shall not be less
than 15 times the thickness of the steel shell. Bell ends shall be formed in a manner to
avoid impairment of the physical properties of the steel shell. Joints shall permit a lap
of at least 11/2 Inches when assembled ; The longitudinal or spiral weld on the inside of
the bell end and the outside of the spigot end on each section of pipe shall be ground
flush with the plate surface. The inside edge of the bell and the outside edge of the
spigot shall be scarfed or lightly ground to remove the sharp edges or burrs. 1
b. Bell and Spigot Joints with 0-Ring Gasket
(1) Bell and spigot joints with rubber gasket shall conform to AWWA C -200.
(2) The bell and spigot ends shall be so designed that when the joint is assembled, it will
be self- centered and the gasket will be restrained or confined to an annular space in
such manner that movement of the pipe or hydrostatic pressure cannot displace it
Compression of the gasket when the joint is completed shall not be dependent upon
water pressure in the pipe and shall be adequate to ensure a watertight seal when
subjected to the specified conditions of service. Bell and spigot ends shall be welded,
on preformed shapes. The bell and spigot ends shall conform to the reviewed shop
drawings.
8. Interior and Exterior Protective Surface Coatings
a. Exterior Surface to be mortar coated shall conform to AWWA C -205 for shop application
and AWWA C -602 for field application. Pipe materials shall be the product of an organiza-
tion which has had not less than 5 years successful experience manufacturing pipe materi-
als and the design and manufacture of the pipe, including all materials, shall be the product
of one company.
b. All surfaces except as noted in c and d below shall receive shop application of mortar lining
and coating.
c. Field Welded Joints. After installation, clean, line and coat unlined or uncoated ends adja-
cent to welded field joints, Including the weld proper, as specified for pipe adjacent to the
weld.
d. Machined Surfaces. Shop coat machined surfaces with a rust preventative compound. After
jointing surfaces, remaining exposed surfaces shall be coated per a and b above.
(0) Corrugated Metal Pipe
1. General
Pipe shall be corrugated continuous lock or welded seam helically corrugated pipe. Corrugated
metal pipe may be galvanized steel, aluminized steel or aluminum conforming to the following:
Galvanized Steel AASHTO M 218
Aluminized Steel AASHTO M 274
Aluminum AASHTO M 197
Where reference is made herein to gage of metal, the reference is to U.S. Standard Gage for
uncoated sheets. Tables in AASHTO M 218 and AASHTO M 274 list thicknesses for coated
sheets in inches. The Tables in AASHTO M 197 list thicknesses in inches for clad aluminum
sheets.
Sampling and testing of metal sheets and coils used for corrugated metal pipe shall be in accor-
dance with SDHPT Test Method Tex - 708 -I.
Damaged speller coating shall be repaired by thoroughly wire brushing the 'damaged area and
removing all loose, cracked or weld- burned speller coaling. The cleaned area shall be painted
with a zinc dust -zinc oxide paint conforming to Federal Specifications TT -P 641b Damaged pipe
shall be rejected and removed from the project.
Damaged aluminized coating shall be repaired in accordance with the manufacturer's
recommendations.
The following information shall be clearly marked on each section of pipe:
2. Fabrication
Thickness and corrugations
Trade Mark of the manufacturer
Specification compliance
a. Steel Pipe
Galvanized or aluminized steel pipe shall be full circle or arch pipe conforming to AASHTO
M 36, Type I or Type II as indicated.
It may be fabricated with circumferential corrugations, lap joint construction with riveted or
spot welded seams or It may be fabricated with helical corrugations with continuous helical
lock seam or ultra high frequency resistance butt - welded seams.
b. Aluminum Pipe
Pipe shall conform to AASHTO M 196, Type I, circular pipe or Type 11, pipe arch as indi-
cated. II may be fabricated with circumferential corrugations, lap joint construction with
riveted or spot welded seams or it may be fabricated with helical corrugations with a con-
tinuous helical lock seam.
Page 13 04/17/86 510
Portions of aluminum pipe that are to be in contact with high chloride concrete or metal
other than aluminum, shall be insulated from these materials by a coaling of bituminous
material. The coating applied to the pipe or pipe arch to provide an insulation between the
aluminum and other material shall extend a minimum distance of 1 foot beyond the area of
contact.
3. Selection of Gages
The pipe diameter, permissible corrugations and required gauges shall be as indicated.
510 04/17/86 Page 14
Table I
Corrugated Steel
21 Inches by " inch Corrugations
Full Circle Pipe
Minimum
Cover, Thickness
Top of
Pipe to
Pipe Top of 0.064 Inch 0.079 Inch 0.109 Inch 0.138 Inch 0.168 Inch
Diameter Subgrade 16 Gage 14 Gage 12 Gage 10 Gage 8 Gage
Inches Maximum Fill Height Above Top of Pipe in Feet`
12 12 112 122 157 164 171
15 12 90 97 125 131 137
18 12 75 81 104 109 114
21 12 64 70 82 94 98
24 12 56 60 69 78 86
27 12 50 54 60 67 73
30 12 49 51 55 59 65
33 12 41 44 52 55 59
36 12 37 41 49 52 55
42 12 41 45(57) 46(90) 49(94) 50(96)
48 12 — 43(50) 44(78) 46(82) 47(86)
54 12 — 43 43(70) 44(73) 45(76)
60 12 — 43(63) 43(66) 44(69)
66 12 — 43(60) 43(62)
72 12 — 43(55) 43(57)
78 12 — — 42(53)
84 12 — — — — 42(49)
• Fill heights in ( ) apply when pipe is 5 percent vertically elongated prior to installation.
Note: Thickness in inches, as shown above, refers to the coated metal after galvanizing.
The line in the gage columns is drawn below the maximum diameter allowed for that gage.
Table II
Corrugated Steel
3 lnches x 1 Inch or 5 Inches x 1 Inch
Full Circle Pipe
Minimum
Cover, Thickness
Top of
Pipe to
Pipe Top of 0.064 Inch 0.079 Inch 0.109 Inch 0.138 Inch 0.168 Inch
Diameter Subgrade 16 Gage 14 Gage 12 Gage 10 Gage 8 Gage
Inches Maximum Fill Height Above Top of Pipe in Feet*
48 12 48 52(60) 56(89) 61(107) 60(118)
54 12 43 48(53) 52(79) 55(95) 58(105)
60 12 38 46(48) 49(71) 51(85) 53(95)
66 12 35 43 47(65) 48(78) 50(86)
Table II (continued)
Corrugated Steel
3 Inches x 1 Inch or 5 inches x 1 inch
Full Circle Pipe
Minimum
Cover, Thickness
Top of
Pipe to
Pipe Top of 0.064 Inch 0.079 Inch 0.109 Inch 0.138 Inch 0.168 Inch
Diameter Subgrade 16 Gage 14 Gage 12 Gage 10 Gage ,8 Gage
Inches Maximum Fill Height Above Top of Pipe in Feet*
72 12 32 40 45(59) 47(71) 48(79)
78 12 29 36 44(54) 45(66) 46(73)
84 12 — 34 43(51) 44(61) 45(68)
90 12 — 32 43 44(57) 44(63)
96 12 — 30 43 43(53) 44(59)
102 24 — 28 42 43(50) 43(56)
108 24 — — 39 42 43(53)
114 24 — — 37 42 42(50)
120 24 — — 35 42 42
Fill heights in () apply when pipe is 5 percent vertically elongated prior to installation.
Note: Thickness in inches, as shown above, refers to the coated metal after galvanizing.
The line in the gage columns is drawn below the maximum diameter allowed for that gage.
Table 01
Corrugated Aluminum
2% Inches x +/x inch Corrugations
Full Circle Pipe
Minimum
Cover, Thickness
Top of
Pipe to
Pipe Top of 0.060 Inch 0.075 Inch 0.105 Inch 0.135 Inch 0.164 Inch
Diameter Subgrade 16 Gage 14 Gage 12 Gage 10 Gage 8 Gage
Inches Maximum Fill Height Above Top of Pipe in Feet*
12 12 45 45 77 — —
15 12 36 37 56 — —
18 12 28 30 36 43 49
24 12 22 23 25 28 31
27 12 20 21 23 25 27
30 12 18 18 21 23 24
33 12 16 17 20 21 22
36 12 — 15 19 20 21
42 12 — — 19 19 20
48 15 — — 18 18 19
54 16 — — 17 18 18
60 16 — — — 16 18
66 18 — — — 12 15
72 20 — — — 18 11
78 20 — — — — 9
84 20 — — — — 7
• Fill heights in () apply when pipe is 5 percent vertically elongated prior to installation.
Note: Thickness in inches, as shown above, refers to the clad sheet.
The line in the gage columns is drawn below the maximum diameter allowed for that gage.
Page 15 04/17/86 510
Fill heights in ( ) apply when pipe Is 5 percent vertically elongated prior to installation.
Note: Thickness in inches, as shown above, refers to the clad sheet.
The line in the gage columns is drawn below the maximum diameter allowed for that gage.
Minimum
Cover, Thickness
Top of
Pipe to
Pipe Top of 0.060 Inch 0.075 Inch 0.105 Inch 0.135 Inch 0.164 Inch
Diameter Subgrade 16 Gage 14 Gage 12 Gage 10 Gage 8 Gage
Table IV
Corrugated Aluminum
3 Inches x 1 Inch or 6 Inches x 1 inch Corrugations
Full Circle Pipe
Inches Maximum Fill Height Above Top of Pipe in Feet'
510 04/17/86 Page 16
30 12 27 30 35 41 46
36 12 23 24 28 30 34
42 14 21 22 24 26 28
48 16 20 20 22 23 24
54 18 19 19 20 21 22
60 20 18 19 20 20 21
66 22 — 18 19 19 20
72 24 — 17 19 19 19
78 26 — 18 18 19
84 26 15 18 18
90 24 — 16 18
96 24 — — 14 16
102 30 — — — 14
108 30 — — — 12
114 30 — — — 10
120 30 — — — — 8
For pipe arch, the design size and permissible corrugations only will be indicated, since the shape
and minimum gage for pipe arch shall be as designated in Tables A, B, C or D for the specified
design size and corrugation for metal pipe.
Table A
Steel Pipe Arch
21 Inch by th Inch Corrugations
H•20 Loading
Coated Equivalent Diameter
Design 'Span *Rise Min. Cover Min. Gage Thickness Full Cir. Pipe
Size Inches Inches Inches Required • Inches Inches
1 17 13 12 16 0.064 15
2 21 15 12 16 0.064 18
3 28 20 12 16 0.064 24
4 35 24 12 16 0.064 30
5 42 29 12 14 0.079 36
6 49 33 12 14 0.079 42
7 57 38 12 12 0.109 48
8 64 43 12 12 0.109 54
9 71 47 12 10 0.138 60
The fill heights for all sizes of pipe arch are limited to a maximum of 7 feet.
A tolerance of plus or minus 1 inch or 2 percent of equivalent circular diameter, whichever is
greater, will be permissible in span and rise, with all dimensions measured from the inside crests
of the corrugations.
Table B
Steel Pipe Arch
3 Inch by 1 Inch Corrugations
H -20 Loading
Coated Equivalent Diameter
Design 'Span 'Rise Min. Cover Min. Gage Thickness Full Cir. Pipe
Size Inches Inches Inches Required Inches Inches
7 53 41 12 12 0.109 48
8 60 46 12 12 0.109 54
9 66 51 12 12 0.109 60
10 73 55 12 12 0.109 66
11 81 59 12 12 0.109 72 I
12 87 63 12 12 0.109 78
13 95 67 12 12 0.109 84
14 103 71 18 12 0.109 90
15 112 75 18 12 0.109 96
16 117 79 18 12 0.109 102
17 128 83 24 12 0.109 108
18 137 87 24 10 0.138 114
19 142 91 24 10 0.138 210
'The fill heights for all sizes of pipe arch are limited to a maximum of 10 feet.
A tolerance of plus or minus 1 inch or 2 percent of equivalent circular diameter, whichever is
greater, will be permissible in span and rise. with all dimensions measured from the inside crests
of the corrugations.
Table C
Steel Pipe Arch
5 lnch by 1 Inch Corrugations
H -20 Loading
Coated Equivalent Diameter
Design 'Span *Rise Min. Cover Min. Gage Thickness FuII Cir. Pipe
Size Inches Inches Inches Required Inches Inches
11 81 59 12 12 0.109 72
12 87 63 12 12 0.109 78
13 95 67 12 12 0.109 84
14 103 71 18 12 0.109 90
15 112 75 18 12 0.109 96
16 117 79 18 12 0.109 102
17 128 83 24 10 0.138 108
18 137 87 24 10 0.138 114
19 142 91 24 10 0.138 120
The fill heights for all sizes of pipe arch are limited to a maximum 0110 feet.
A tolerance of plus or minus 1 inch or 2 percent of equivalent circular diameter, whichever is
greater, will be permissible in span and rise, with all dimensions measured from the inside crests
of the corrugations.
Page 17
04/17/86 510
Table D
Aluminum Pipe Arch
21 Inch by ih Inch Corrugations
11-20 Loading
Coated Equivalent Diameter
Design *Span *Rise Min. Cover Min. Gage Thickness Full Cir. Pipe
Size Inches Inches Inches Required Inches Inches
1 17 13 12 16 0.060 15
2 21 15 12 16 0.060 18
3 28 20 12 14 0.075 24
4 35 24 12 14 0.075 30
5 42 29 18 12 0.105 36
6 49 33 18 12 0.105 42
7 57 38 18 10 0.135 48
8 64 43 18 10 0.135 54
9 71 47 18 8 0.164 60
'All dimensions are measured from the inside crests of the corrugations. A tolerance of plus or minus 1 inch or 2
percent of the equivalent circular diameter, whichever is greater will be permissible in span and rise
'The fill heights for all sizes of pipe arch are limited to a maximum of 7 feet.
4. Joint Material
510 04/17/86 Page 18
Except as otherwise indicated, coupling bands and other hardware for galvanized or aluminized
steel pipe shall conform to AASHTO M 36 for steel pipe and AASHTO M 196 for aluminum pipe.
Field joints for each type of corrugated metal pipe shall maintain pipe alignment during construc-
tion and prevent infiltration of soil material during the life of the installation.
Coupling bands shall be not more than 3 nominal sheet thicknesses lighter than the thickness of
the pipe to be connected and in no case lighter than 0.052 Inch for steel or 0.048 inch for
aluminum.
Coupling bands shall be made of the same base metal and coating (metallic or otherwise) as the
pipe.
Coupling bands shall lap equally on each of the pipes being connected to form a tightly closed
joint after installation.
Pipes furnished with circumferential corrugations shall be field jointed with corrugated locking
bands. This includes pipe with helical corrugations which has reformed circumferential corruga-
tions on the ends. The locking bands shall securely fit into at least one full circumferential corru-
gation on each of the pipe ends being coupled. The minimum width of the corrugated locking
bands shall be as shown below for the corrugation which corresponds to the end circumferential
corrugations on the pipes being joined:
101/2 inches wide for 21 inches x r inch corrugations.
12 inches wide for 3 inches x 1 inch or 5 inches x 1 inch corrugations.
Helical pipe without circumferential end corrugations will be permitted only when it is necessary to
join a new pipe to an existing pipe which was installed with no circumferential end corrugations. In
this event pipe furnished with helical corrugations at the ends shall be field jointed with either
helically corrugated bands or with bands with projections or dimples. The minimum width :of heli-
cally corrugated bands shall conform to the following:
12 inches wide for pipe diameters up to and including 72 inches.
14 inches wide for 1 inch deep helical end corrugations.
Bands with projections shall have circumferential rows of projections with one projection for each
corrugation. The width of bands with projections shall be not less than the following:
12 inches wide for pipe diameters up to and including 72 inches.
The bands shall have 2 circumferential rows of projections.
1
1
1
1
1
1
1
1
1
1
1
1
i
1
1
1
1
1
16 inches wide for pipe diameters of 78 inches and greater. The bands shall have 4 cir-
cumferential rows of projections.
Unless otherwise indicated, all bolts for coupling bands shall be '/z Inch diameter. Bands 12 inches
wide or less will have a minimum of 2 bolts and bands greater than 12 inches wide shall have a
minimum of 3 bolts.
Galvanized bolts may be hot dip galvanized conforming to AASHTO M 232, mechanically gal-
vanized to provide the same requirements as AASHTO M 232 or electrogalvanized per ASTM
A 164 Type RS.
5. Additional Coatings or Linings
a. Bituminous Coaled
Bituminous Coated pipe or pipe arch shall be as indicated both as to base metal and fab-
rication and in addition shall be coated inside and out with a bituminous coating which shall
meet the performance requirements set forth herein. The bituminous coating shall be 99.5
percent soluble in carbon bisulphide. The pipe shall be uniformly coated inside and out to a
minimum thickness of 0.05 inch, measured on the crests of the corrugations
The bituminous coating shall adhere to the metal tenaciously, shall not chip off in handling
and shall protect the pipe from deterioration as evidenced by samples prepared from the
coaling material successfully meeting the Shock Test and Flow Test in accordance with Test
Method Tex - 522 -C.
b. Paved Invert
Where a Paved Invert is indicated, the pipe or pipe arch, in addition to the fully coaled treat-
ment described above, shall receive additional bituminous material 01 the same specifica-
tion as above, applied to the bottom quarter of the circumference to form a smooth pave-
ment with a minimum thickness of //e inch above the crests of the corrugations.
c. Cement Lined
(1) General
Except as modified herein, pipe shall conform to AASHTO M 36 for lock seam or
welded helically corrugated steel pipe. Pipe shall be of full circle and shall be fab-
ricated with two annular corrugations for purposes of joining pipes together with band
couplers. Lock seams shall develop the seam strength as required in Table 3 of
AASHTO M 36. Concrete lining shall conform to the following:
Composition
Concrete for the lining shall be composed of cement, fine aggregate and water
that are well mixed and of such consistency as to produce a dense, homoge-
nous, nonsegregated lining.
Cement
Portland Cement shall conform to AASHTO M 85.
Aggregates shall conform to AASHTO M 6 except that the requirements for gra-
dation and uniformity of gradation shall not apply.
Mixture
The aggregates shall be sized, graded, proportioned and thoroughly mixed with
such proportions of cement and water as will produce a homogenous Concrete
mixture of such quality that the pipe will conform to the design requirements
indicated. In no case, however, shall the proportions of Portland Cement,
blended cement or Portland Cement plus pozzolanic admixture be less than
470 lb/cu. yd of concrete.
Thickness
The lining shall have a minimum thickness of 1 /a inch above the crest of the
corrugations.
Page 19 04/17/86 510
510 04/17/86 Page 20
d. Fiber Bonded
Lining Procedures
The lining shall be plant applied by a machine traveling Through a stationary
pipe. The rate of travel of the machine and the rate of concrete placement shall
be mechanically regulated so as to produce a homogenous nonsegregated
lining throughout.
Surface Finish
Certification
6. Slotted Drain Storm Sewers
The lining machine shall also mechanically trowel the concrete lining as the unit
moves through the pipe.
Fumish manufacturer's standard certification of compliance upon request of the
purchaser.
Joints
Pipe shall be joined together with coupling bands made from steel sheets to an
indicated thickness of 0.064 inch (12 ga.). Coupling bands shall be formed with
two corrugations that are spaced to provide seating in the third corrugation of
each pipe end without creating more than V inch = annular space between
pipe ends when joined together.
Bands shall be drawn together by two' inch galvanized bolts through the use
of a bar and strap suitably welded to the band.
When 0 -ring gaskets are indicated they shall be placed in the first corrugation
of each pipe and shall be compressed by tightening the coupling band Rubber
0 -ring gaskets shall conform to Section 5.9, ASTM C 361.
(2) Causes for Rejection
Pipe shall be subject to rejection on account of failure to conform to any of the indica-
tions. Individual sections of pipe may be rejected because of any of the following:
Damaged ends, where such damage would prevent making satisfactory joint.
Defects that indicate poor workmanship and could not be easily repaired in the
field.
Severe dents or bends in the metal itself.
If concrete lining is broken out, pipe may be rejected or at the discretion of the
Engineer, repaired in the field in accordance with the manufacturer's recom-
mendation. Hairline cracks or contraction cracks in the concrete lining is to be
expected and does not constitute cause for rejection.
Where fiber bonded pipe is indicated, the pipe or pipe arch shall be formed from sheets
whose base metal shall be as indicated. In addition, the sheets shall have been coated with
a layer of fibers, applied in sheet form by pressing them into a molten metallic bonding. If a
paved invert is indicated it shall be in accordance with the procedure outlined above. The
test tor spelter coating is waived for asbestos bonded pipe.
The pipes for the slotted drain oulfall shall be helically corrugated, lock seam or welded seam
pipe. Materials and fabrication shall be in accordance with the above. The metal thickness shall be
a minimum 16 gage.
The chimney assemblies shall be constructed of x /15 inch welded plate or machine formed 14 gage
galvanized steel sheets. The height of the chimney required will be as indicated. Metal tor the
welded plate slot shall meet the requirements of ASTM A 36 and the completed plate slot shall be
galvanized after fabrication in accordance with ASTM A 123.
Weld areas and the heat affected zones where the slot is welded to the corrugated pipe shall be
thoroughly cleaned and painted with a good quality asphalt base aluminum paint.
7. Mortar
Mortar shall be composed of 1 part Type I Portland Cement and 2 parts clean, sharp mortar sand
suitably graded for the purpose and conforming in other respects to the provisions for fine aggre-
gate of Item No. 403, "Concrete for Structures ". Hydrated lime or lime putty may be added to the
mix, but in no case shall it exceed 10 percent by weight of the total dry mix.
(p) Vitrified Clay Pipe ll
Vitrified Clay Pipe shall conform to ASTM C 700, extra strength clay pipe. The joint material for vitrified
clay pipe shall conform to ASTM C 425 compression joints for vitrified clay bell and spigot pipe.
510.3 Construction Methods
(1) General
Prior to commencing this work, all erosion control and tree protection measures required shall be In place and all
utilities located and protected as set forth in Section 00140, "General Conditions of Agreement ". Clearing the site
shall conform to Item No. 102, "Clearing and Grubbing ". Maintainance of environmental quality protection shall com-
ply with all requirements of Section 00140, "General Conditions of Agreement" and Item No. 601, "Salvaging and
Placing Topsoil ".
The Contractor shall conduct his work such that a reasonable minimum of disturbance to existing utilities will result.
Particular care shall be exercised to avoid the cutting or breakage of all existing utilities. If at any time the Contractor
damages the utilities in place Through his operations, the Contractor shall Immediately notify the owner of the utility
to make the necessary repairs. When active wastewater sewer lines are cut in the trenching operations, temporary
flumes shall be provided across the trench, while open and the lines shall be restored when the backldling has pro-
gressed to the original bedding lines of the sewer so cut.
The Contractor shall inform utility owners sufficiently in advance of the Contractor's operations to enable such utility
owners to reroute, provide temporary detours or to make other adjustments to utility lines in order that the Contractor
may proceed with his work with a minimum of delay and expense. The Contractor shall cooperate with all utility
owners concerned in effecting any utility adjustments necessary and shall not hold the City liable for any expense
due to delay or additional work because of conflicts arising from existing utilities.
The Contractor shall do all trenching in accordance with the provisions and the directions of the Engineer as to the
amount of trench left unfilled at any lime. All excavation and backhlling shall be accomplished as indicated and in
accordance with recommendations of the State Health Department Division of Occupational Safety.
Where excavation for a pipe line is required in an existing City street, a street cut permit is required and control of
traffic shall be as indicated and in accordance with the Texas Manual on Uniform Traffic Control Devices
Wherever existing utility branch connections, sewers, drains, conduits, ducts, pipes or structures present obstruc-
tions to the grade and alignment of the pipe, they shall be permanently supported, removed, relocated or recon-
structed by the Contractor through cooperation with the owner of the utility, structure or obstruction involved. In those
instances where their relocation or reconstruction is impractical, a deviation from line and grade will be ordered by
the Engineer and the change shall be made in the manner directed.
Adequate temporary support, protection and maintenance of all underground and surface utility structures, drains,
sewers and other obstructions encountered in the progress of the work shall be furnished by the Contractor, at his
expense and as approved by the Engineer.
Where traffic must cross open trenches, the Contractor shall provide suitable bridges. For trenches less than 2 feet
in width, sheet steel plates having a minimum thickness of 'h inch shall be used. For trenches up to 4 feet in width,
sheet steel plates having a minimum thickness of 3/4 inches shall be used. In all cases, the plates shall overlay the
top of the trench a minimum 0118 inches on both sides and secured by asphalt. Adequate provisions shall be made
for the flow of sewers, drains and watercourses encountered during construction and any structures which may have
been disturbed shall be satisfactorily restored upon completion of work.
When rainfall or runoff is occurring or is forecast by the U.S. Weather Service, the Contractor shall not perform ,or
attempt any excavation or other earth moving work in or near the flood plain of any stream or watercourse or on
slopes subject to erosion or runoff, unless given specific approval by the Engineer. When such conditions delay the
work, an extension of time for working day contracts will be allowed in accordance with Section 00140, "General
Conditions of Agreement ".
Page 21 04/17/86 510
(2) Water Line /New Wastewater Line Separation
Installation of Water and Wastewater lines shall conform to the latest Water Line /New Wastewater Line Separation
guidelines as published by the State Health Department.
When new wastewater lines are installed, they shall be no closer to water lines than 9 feet in all directions and
parallel wastewater line and water lines must be installed in separate trenches. Where the 9 toot separation distance
cannot be achieved, the following procedures shall be used:
Where a new gravity wastewater sewer parallels a new water main, the wastewater line shall be constructed of
cast iron, ductile iron or PVC pipe meeting AWWA Specifications for use as potable water pipe, with a pressure
rating for both the pipe and the joints of greater than or equal to 150 psi. The wastewater line may be placed no
closer than 2 feet vertically and 4 feet horizontally from the water line, with the separation distances measured
between the nearest outside pipe diameters. The wastewater line shall be installed at a lower elevation than
the water line.
(3)
(5)
Where a new wastewater line crosses a water line and that portion of the wastewater line is within 9 feet of the water
main it shall be constructed as follows:
The wastewater line may be placed no closer than 6 inches from the water line. The separation distance must
be measured between the nearest outside pipe diameters. The wastewater line shall be located at a lower
elevation than the water line wherever possible and one length of the wastewater line must be centered on the
water line.
Unless wastewater manholes and the connecting sewer can be made completely watertight and tested for no
leakage, they must be installed so as to provide a minimum of 9 feet of horizontal clearance from an existing or
proposed water line.
Where a new wastewater force main parallels or crosses a water main, that portion of the force main which is
within 9 feet of the water line shall be constructed of ductile iron or PVC meeting AWWA C -900 specifications
Utility and Storm Sewer Crossings
When the Contractor installs a pipe that crosses under a utility structure or storm sewer and the top of the pipe is
within 18 inches of the bottom of the utility structure, the pipe shall be encased as specified in Item No. 505, "En-
casement and Encasement Pipe ", for a distance of at least 1 foot on either side of the ditch line of the utility structure
or the storm sewer. Unless otherwise specified by the Engineer, concrete encasement will not be required for Ductile
Iron or AWWA C -900 PVC pipe. When the Contractor installs a pipe that crosses over a utility structure or storm
sewer and the top of the utility structure or storm sewer and the top of the utility structure ip within 16 inches of the
bottom of the pipe, the pipe shall be either Ductile Iron or PVC, unless otherwise specified by the Engineer.
(4) Trench Excavation
Unless otherwise indicated, all underground piped utilities shall be constructed in an open cut with vertical sides
from the bottom of the bedding to a point 1 foot above the pipe with a minimum trench width of 6 ". (Defined as the
pipe zone.) The excavation above this point may be stepped and /or the sides laid back to a stable slope. Required
vertical sides shall be sheeted and braced to the extent necessary to maintain the sides of the required vertical
excavation throughout the construction period. Adequacy of the sheeting and bracing shall be the responsibility of
the Contractor but shall be subject to review by the Engineer. After the pipe has been laid and the backfill placed and
compacted to 12 inches above the top of the pipe, any sheeting, shoring and bracing required may be removed with
special care to insure that the pipe is not disturbed. As each piece of sheeting is removed, the space left by its
removal must be thoroughly tilled and compacted with suitable material and provision made to prevent the sides of
the trench from caving until the backfill has been completed. Any sheeting left in place will not be paid for and shall
be considered subsidiary to the pipe item bid.
Trench Width
Trenches for water and wastewater lines shall have a minimum width of 6 inches and a maximum width of 1 foot on
each side beyond the outside surfaces of the pipe bell or coupling.
Trenches for Storm Sewers up to 42 inches shall have a width 011 foot on each side beyond the outside surfaces of
the pipe. Pipes more than 42 inches shall have a trench width not to exceed 18 inches on each side beyond the
outside surfaces of the pipe.
If trench width within the pipe zone exceeds this maximum, the entire pipe zone shall be refilled with approved
backlit) material, thoroughly compacted to a minimum of 95 percent of maximum density as determined by SDHPT
Test Method Tex -114 -E and then re- excavated to the proper grade and dimensions. Excavation along curves and
bends shall be so oriented that the trench and pipe are approximately centered on the centerline of the curve, using
short links of pipe and /or bend fillings if necessary.
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For all utilities to be constructed in fill above natural ground, the embankment shall first be constructed to an eleva-
tion not less than 1 foot above the top of the utility after which excavation for the utility shall be made as indicated.
(6) Trench Depth and Depth of Cover
All pipe and in -line appurtenances shall be laid to the grades indicated. The depth of cover shall be measured from
the established finish grade, natural ground surface, subgrade for staged construction, street or other permanent
surface to the top or uppermost projection of the pipe.
(a) Where not otherwise indicated, all water piping shall be laid to the following minimum depths:
1. Water piping Installed in undisturbed ground in easements of undeveloped areas which are not
within existing or planned streets, roads or other traffic areas shall be laid with at least 36 inches of
cover.
2. Water piping installed in existing streets, roads or other traffic areas shall be laid with at least 48 .
inches of cover below finish grade.
3. Unless approved by the Engineer installation of water piping in proposed new streets will not be
permitted until paving and drainage plans have been approved and the roadway traffic areas ex-
cavated to the specified or standard paving subgrade, with all parkways and sidewalk areas
graded according to any applicable provisions of the drainage plans or sloped uniformly from the
curb line to the right of way line. Piping and appurtenances installed in such proposed streets shall
be laid with at least 36 inches of cover below the actual subgrade.
(b) Where not otherwise Indicated, all wastewater piping shall be laid to the following minimum depths:
1. Wastewater piping installed in natural ground in easements or other undeveloped areas which are
not within existing or planned streets, roads or other traffic areas shall be laid with at least 42
inches of cover.
2. Wastewater piping installed in existing streets, roads or other traffic areas shall be laid with at least
66 inches of cover.
3. Wastewater piping installed in such proposed streets shall be laid with at least 48 inches of cover
below the actual subgrade.
(7) Classification of Excavation
Excavation will not be considered or paid for as a separate item of work, so excavated material will not be classified
as to type or measured as to quantity. Full payment for all excavation required for the construction shall be included
in the various unit or lump sum contract prices for the various items of work installed, complete in place. No extra
compensation, special treatment or other consideration will be allowed due to rock, pavement, caving, sheeting and
bracing, falling or rising water, working under and in the proximity of trees or any other handicaps to excavation.
(6)
Dewatering Excavation
Underground piped utilities shall not be constructed or the pipe laid in the presence of water. All water shall be
removed from the excavation prior to the pipe placing operation to insure a dry firm granular bed on which to place
the underground piped utilities and shall be maintained in such unviatered condition until all concrete and mortar is
set. Removal of water may be accomplished by bailing, pumping or by a well -point installation as conditions warrant.
In the event that the excavation cannot be dewatered to the point where the pipe bedding is free of mud, a seal shall
be used in the bottom of the excavation. Such seal shall consist of Class B concrete, conforming to Item No. 403,
"Concrete for Structures ", with a minimum depth of 3 inches.
(9) Trench Conditions
Before attempting to lay pipe, all water, slush, debris, loose material, etc., encountered in the trench must be pumped
or bailed out and the trench must be kept clean and dry while the pipe is laid and backfilled. Where needed, sump
pits shall be dug adjoining the trench and pumped as necessary to keep the excavation dewatered.
Backfilling shall closely follow pipe laying so that no pipe is left exposed and unattended after initial assembly. All
open ends, outlets or other openings in the pipe shall be protected from damage and shall be properly plugged and
blocked watertight to prevent the entrance of trench water, dirt, etc. The interior of the pipeline shall at all times be
kept clean, dry and unobstructed.
Where the soil encountered at established footing grade is a quicksand, saturated or unstable material, the following
procedure shall be used unless other methods are indicated:
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(10) Blasting
All blasting shall conform to the provisions of Section 00140, "General Conditions of Agreement ".
(11) Removing Old Structures
When out of service masonry structures or foundations are encountered in the excavation, such obstructions shall
be removed for the full width of the trench and to a depth of 1 foot below the bottom of the trench. When abandoned
inlets or manholes are encountered and no plan provision is made for adjustment or connection to the new sewers,
such manholes and inlets within the construction limits shall be removed completely to a depth 1 foot below the
bottom of the trench. In each instance, the bottom of the trench shall be restored to grade by backfilling and com-
pacting by the methods provided above. Where the trench cuts through storm or wastewater sewers which are
known to be abandoned, these sewers shall be cut flush with the sides of the trench and blocked with a concrete
plug in a manner satisfactory to the Engineer. When old structures are encountered, which are not visible from the
existing surface and are still in service, they shall be protected and adjusted as required to the finished grade.
(12) Lines and Grades
Grades, lines and levels shall conform to Section No. 00341, "Grades, Lines and Levels ". Any damage to the above
by the Contractor shall be re- established at the Contractor's expense.
The location of the lines and grades Indicated may be changed only by direction of the Engineer and it is understood
that the Contractor will be paid on the basis of his unit contract prices bid for such work actually perforated and will
make no claim for damages or loss of anticipated profits due to the change of location or grade.
The Contractor shall furnish, at his expense, all necessary batter boards or electronic devices for controlling the
work. Batter boards shall be of adequate size material and shall be supported substantially. The boards and all
location stakes must be protected from possible damage or change of location. The Contractor shall furnish good,
sound twilled lines for use in achieving fines and grades and the necessary plummets and graduated poles.
The Contractor shall submit to the Engineer at least 6 copies of any layout plans from the pipe manufacturer for
review and approval. The Contractor shall submit the layout plans at least 30 days in advance of any actual construc-
tion of the project. The Engineer will forward all comments of the review to the Contractor for revision. Revisions
shall be made and forwarded to the Engineer for his acceptance. Prior to commencement of the Project, reviewed
layout plans will be sent to the Contractor marked for construction.
Should the Contractor's procedures not produce a finished pipe placed to grade and alignment, the pipe shall be
removed and relayed and the Contractor's procedures modified to the satisfaction of the Engineer. No additional
compensation shall be paid for the removal and relaying of pipe required above.
(13) Surplus Excavated Materials
Excess material or material which cannot be made suitable for use in embankments will be declared surplus by the
Engineer and shall become the properly of the Contractor to dispose of off site at a permitted fill site, without injury to
the City or any individual. Such surplus material shall be removed from the work site promptly following the comple-
tion of the portion of the utility involved.
(14) Pipe Bedding •
Where not otherwise provided, all piping shall be installed in a continuous envelope of sand, pea gravel, soil cement,
cement stabilized or crushed stone meeting the requirements of materials above.
The bedding material shall extend from 6 inches below to 12 inches above the outer parts of the pipe, fittings and
accessories for Water and Wastewater pipe and from 6 inches below the pipe to at least 15 percent of the overall
height of the pipe for storm sewers, over the full width of the excavation between the undisturbed trench walls
All bracing, struts, etc., installed by the pipe manufacturer (or temporary replacements by the Contractor) shall be
kept in place in the pipe, undisturbed, until the trench has been backfilled at least to the top of the pipe. When
510 04/17/86 Page 24
All unstable soils shall be removed to a depth of 2 feet below bottom of piped utility. Such excavation shall be
carried out to the trench widths above.
All unstable soil so removed shall be replaced with concrete seal foundation rock for the entire trench width or
coarse aggregate materials placed in uniform layers not to exceed 6 inches, loose measure and compacted by
mechanical tamping or other means which will provide a stable foundation for the utility.
Alf forms, concrete seals, sheathing and bracing, pumping, additional excavation and backfill required shall be
done at the Contractor's expense.
installing mortar lined and mortar coaled steel pipe, all bracing, struts, etc., Installed by the pipe manufacturer shall
be kept in the pipe, undisturbed until the pipe has been backfilled.
Where not otherwise indicated al pipe bedding materials shall conform to one of the classifications described above.
(a) Sand Bedding
All sizes of storm sewers and pipe for Water and Wastewater lines up to 15 Inches inside diameter may be
Installed in sand bedding. All pipe installed in trenches excavated by blasting, regardless of pipe size or materi-
als, must be laid in pea gravel or crushed stone bedding.
(b) Pea Gravel Bedding
Water and Wastewater pipe up to 15 inches diameter may be installed in pea gravel bedd,
(c) Crushed Stone Bedding
Pipe may be installed in crushed stone bedding. The crushed stone shall be placed in lifts not to exceed 18
inches and compacted.
(d) Soil Cement
Soil cement shall be installed beneath welded steel water pipe when unsuitable foundation conditions are
encountered.
(15) Laying Pipe
No pipe shall be installed in the trench until excavation has been completed, the bottom of the trench graded and the
trench completed as Indicated.
Laying of corrugated metal pipes on the prepared foundation shall be started at the outlet end with the separate
sections firmly joined together, with outside laps of circumferential joints pointing upstream and with longitudinal laps
on the sides. Any metal in joints which is not protected by galvanizing shall be coated with a suitable asphaltum
paint. Proper facilities shall be provided for hoisting and lowering the sections of pipe into the trench without damaging
the pipe or disturbing the prepared foundation and the sides of the trench. Any pipe which is not in alignment or which
shows any undue settlement after laying or is damaged, shall be taken up and relaid without extra compensation.
Multiple installations of corrugated pipe or arches shall be laid with the centerlines of Individual barrels parallel When
not otherwise indicated, clear distances of 2 feet between outer surfaces of adjacent pipes shall be maintained.
No debris shall remain in the drainways or drainage structures.
All backfill in streets and under structures will be tested by the City and must satisfy the specified density require-
ments conforming to Section 00344, "Testing Laboratory Services" before final acceptance of or payment for the
work.
All recommendations of the manufacturer shall be carefully observed during handling and installation of each mate-
rial. Unless otherwise indicated, all materials shall be delivered to the project by the manufacturer or agent and
unloaded as directed by the Contractor. Each piece shall be placed facing the proper direction near to where it will be
installed.
The interior of all pipe, fittings and other accessories shall be kept free from dirt and foreign matter at all times and
stored in a manner that will protect them from damage. Stockpiled materials shall be stacked so as to minimize
entrance of foreign matter.
The interior of all pipeline components shall be clean, dry and unobstructed when installed.
Piping materials shall not be skidded or rolled against other pipe, etc. and under no circumstances shall pipe, fittings
or other accessories be dropped or jolted.
During handling and placement, materials shall be carefully observed and inspected and any damaged, defective or
unsound materials shall be marked, rejected and removed from the job site. Minor damage shall be marked and
repaired in a manner satisfactory to the Engineer. Joints which have been placed but not joined, backfilled, etc., shall
be protected in a manner satisfactory to the Engineer. 1
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(16) Assembling of Pipe
Angular spacing of all joints shall meet the manufacturer's recommendations for the pipe. and accessories being
used. Side outlets shall be rotated so that the operating stems of valves will be vertical when the valves are installed.
Page 25 04/17/86 510
Pressure pipe shall be laid with bell ends facing the direction of pipe installation. Pipe end bells shall be placed,
upgrade for all wastewater lines.
Before joining any pipe, all foreign matter, lumps, blisters, excess coal tar coating, oil or grease shall be removed
from the ends of each pipe and the pipe ends shall then be wire brushed and wiped clean and dry. Pipe ends shall be
kept clean until joints are made.
Every precaution shall be taken to prevent foreign material from entering the pipe during installation. No debris,
tools, clothing or other materials shall be placed In the pipe.
(17) Joints
(a) Mortar
Pipe ends shall be clean, free of asphalt or other contaminants which will Inhibit the bond of the mortar to the
pipe. The pipe ends shall be moistened Immediately prior to placing the mortar in the Joint.
(b) Cold Applied Preformed Plastic Gaskets
The pipe ends shall be clean and the joint material applied to the dry pipe. In cold weather, the joint material
shall be heated to facilitate the seal of the joint.
(c) 0 -Ring
510 04/17/86 Page 26
Just before making a joint the ends of the pipe shall be clean, dry, free of any foreign matter, lump blisters,
excessive coal tar coating and grease or oil and shall be wire brushed. The gasket and the inside surface of
the bell shall be lubricated with a light film of soft vegetable soap compound to facilitate assembly of the joint.
The rubber gasket shall be stretched uniformly as it is placed in the spigot groove to insure a uniform volume of
rubber around the circumference of the grove. The spigot shall be centered in the bell, the pipe pushed home
uniformly and brought into true alignment. Bedding material shall be placed and tamped against pipe to secure
the joint. •
(d) Push -on Joints
Just before making a joint, the bell and spigot rings shall be clean and dry. The gasket and the Inside surface of
the bell shall be lubricated with alight film of soft vegetable soap compound (Flax Soap) to facilitate telescop-
ing the joints. The rubber gasket if not factory installed shall be stretched uniformly as it is placed in the spigot
groove to insure a uniform volume of rubber around the circumference of the groove. The spigot shall be cen-
tere in the bell, the pipe pushed home and brought into true alignment. It shall be secured there with bedding
material which is carefully tamped under and on each side of the pipe. Care should be taken to prevent dirt or
foreign matter from entering the Joint space.
(e) Bolted Joints
All flanged, mechanical or other bolted Joints shall be joined with nuts and bolts of high strength, low alloy,
corrosion resistant steel, stainless steel or be coated as indicated above in Iron Pipe.
(f) Solvent Weld — For plumbing pipe.
(18) Pressured Pipe Laying
(a) Grout for Concrete Steel Cylinder Pipe (CSC) and Welded Steel Pipe
Aggregate, cement, etc., shall be as Indicated in "Mortar" herein.
Grout shall be poured into the recess between the bell and spigot on the outside of the pipe and contained by a
Joint wrapper ( "diaper ") recommended by the pipe manufacturer. The wrapper shall have a minimum width of 7
inches for 30 inch and smaller and 9 inches for larger pipe, secured to the pipe by "Band Iron" steel straps.
The grout shall be poured in 1 continuous operation in such manner that after shrinkage and curing the joint
recess will be completely filled.
Mortar for the inside recess shall be of the consistency of plaster. The inside recess between the bull and
spigot shall be filled with mortar after the pipe joint on either side of the recess has been backfilled and well
tamped in and no less than one pipe joint has been installed ahead of the pipe forming the recess. The mortar
shall completely fill the recess and shall be trowelled and packed into place and finished off smooth with the
inside of the pipe.
The Contractor shall inspect the joint after the mortar has set and make repairs of any pockets, cracks or other
defects caused by shrinkage. The inside surface shall be cleared of any mortar droppings, cement, water,
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slurry, etc., before they have become set and shall be cleared of any other foreign matter. The inside surface of
the pipe shall be left clean and smooth.
Pipe shall be handled at all times with wide nonabrassive slings, belts or other equipment designed to prevent
damage to the coating and all such equipment shall be kept In such repair that Its continued use Is not injurious
to the coating. The use of tongs, bare pinch -bars, chain slings, rope slings without canvas covers, canvas or
composition belt slings with protruding rivets, pipe hooks without proper padding or any other handling equip-
ment which the engineer deems to be injurious to the coating shall not be permitted. The spacing of pipe
supports required to handle the pipe shall be adequate to prevent cracking or damage to the cement mortar
lining.
(19) Placing Pipe in Tunnels
Piping installed as a carrier pipe in a tunnel, encasement pipe, etc., shall have uniform alignment, grade, bearing and
conform to the reviewed shop drawings. All necessary skid blocks, rails, bedding material, grout cradle or paving,
bracing, blocking, etc., as stipulated by the Contract or as may be required to provide and maintain the required pipe
alignment and grade, shall be provided by the Contractor at no cost except as provided by the Bid Items. This shall
include at least 1 screw -type hold down Jack per joint of pipe to prevent flotation of the pipe, unless otherwise indi-
cated. Such carrier piping shall have flexible bolted or gasketed push -on joints or Concrete Steel Cylinder pipe in-
stalled as follows:
(a) 21 Inch Pipe and Smaller
Prior to placing the pipe in the tunnel, the inside Joint recess at the bell shall be buttered with cement
mortar.
After the joint is engaged, the excess mortar shall be smoothed by pulling a tight fitting swab through the
joint. The pipe joints shall then be welded rigid by placing 3 segments of weld, having a minimum length
of 9 inches each and equally spaced around the joint. Cement mortar protection shall then be placed in
the normal manner to the exterior of the joint and allowed to harden sufficiently to avoid dislodgement
during installation. If time is of the essence, a quick setting compound may be used.
(b) 24 Inch Pipe and Larger
Each length of pipe shall be pushed into the tunnel as single units. A flexible mastic sealer shall be
applied to the exterior of the joint prior to joint engagement. The surfaces receiving the mastic sealer
shall be cleaned and primed in accordance with the manufacturers recommendation. Sufficient quan-
tities of the mastic sealer shall be applied to assure complete protection of all steel in the joint area. The
interior of the joint shall be filled with cement mortar in the normal manner atter the pipe is in its final
position within the tunnel.
(20) Temporary Pipe Plugs, Caps and Bulkheads
Temporary plugs, caps or plywood bulkheads shall be installed to close all openings of the pipe and tidings when
pipeline construction Is not in progress.
Standard plugs shall be inserted into the bells of all dead ends of pipes, tees or crosses and spigot ends shall be
capped. All end plugs or caps shall be secured to the pipe as provided under Item No. 507, "Bulkheads ".
(21) Corrosion Control
(a) Protective Covering
Unless otherwise indicated, all flanges, nuts, bolts, threaded outlets and all other Iron or steel components
buried and in contact with earth or backfill shall be wrapped with 8 -mil (minimum) polyethylene film meeting
ANSI /AWWA C -105 to provide a continuous wrap.
(b) Corrosion Monitoring System
1. If indicated the corrosion monitoring system shall be furnished and Installed to meet the following
requirements:
a. Bonds shall be provided between steel cylinders of adjacent pipe sections and all nonin-
sulating joints as necessary to assure electrical continuity except where electrical isolation
is necessary or required. The joint bonds shall be designed:
(1) With sufficient slack to allow for a total joint displacement of 'h inch.
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510 04/17/86 Page 28
(2) Using insulated copper cable metallurgically bonded to adjacent cylinders. All
bare copper and steel at the connection shall be Insulated by an approved
means.
b. Intermediate bonds for the prestress wire of embedded cylinder prestressed concrete pipe
shall also be provided as required to minimize attenuation. The intermediate bonds shall be
In the form of steel straps embedded in the outer surface of the concrete core directly upon
which the prestress wire is tightly wound. The size and number of straps shall be designed
to provide uniform current distribution to all embedded metallic surfaces of the pipe.
c. Electrical isolation in the form of either flexible or rigid insulating fittings as specified herein
shall be provided as required to obtain electrical discontinuity. 1
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d. Flexible insulating fittings required shall be style 39 insulating couplings as manufactured by
Dresser Industries, 41 Fisher Avenue, Bradford, PA 16701; or equal.
e. Rigid insulating fittings required shall be insulated with fullface gaskets and combination
bolt sleeves and washers for flanges as manufactured by Central Plastics Co., P.O. Box
762, Shawnee, OK 74801 or equal.
f. Corrosion test stations shall be installed on the pipeline at:
(1) All buried line crossings.
(2) The beginning and end of the portions of the pipeline to be monitored.
a. Both sides of Insulating fittings.
b. Intermediate locations along the line, such that the test stations are no
more than 1,000 feet apart.
c. For the embedded cylinder prestressed concrete pipe alternative, test
stations, with wires originating at the prestress wire at the midpoint of the
pipelaying length at the above locations, shall also be provided.
g. Test stations shall be of the two -wire type with one of the wire being sized (No. 6 AWG or
larger) such that it can be used for bonding. The other wire, for determining pipe -to -soil po-
tentials, shall be No. 12 AWG or larger. Both leads shall be continuous (without splices) and
laid with sufficient slack to prevent stress. The leads shall be insulated with 600 -volt rated
insulation suitable for direct burial. Prior to backfilling, the insulation shall be inspected for
defects. All defects shall be repaired by approved methods.
h. Test stations shall be of the flush type (terminal below grade) or the above surface type,
protected as required for permanency. The flush type shall be installed in developed, urban
areas (streets, alleys, sideways, etc.,) and the above - surface type (mounted on a post) shall
be installed in cross-country areas (rangeland, farmland, etc.). Where practicable, test sta-
tions shall be located at or closely adjacent to clearly identifiable topographical features
(fence line, road intersection, section line, etc.) of the pipeline right of way.
I. The Contractor shall perform tests as required to determine the following and correct the
corrosion- monitoring system to comply with these specifications:
1. Pipeline electrical continuity.
2. Effectiveness of insulating joints.
3. Test station Integrity.
4. Static pipe -to -soil potentials at each test station.
5. Soil resistivity at each test station.
j. All design, installation and testing shall be consistent with sound corrosion engineering
practice.
(22) Pipe Anchorage, Support and Protection
All pressure pipelines tees, plugs, caps and bends exceeding 22' degrees and other bends as directed, shall be
securely anchored by suitable concrete thrust blocking or by approved metal harness. Unless otherwise indicated,
on 24 inch or larger piping, all bends greater than 111/2 degrees shall be anchored as described herein.
Storm sewers on steep grades shall be lugged as Indicated.
(a) Concrete Thrust Blocking
Concrete for use as reaction or thrust blocking shall be Class B conforming to Item No. 403, "Concrete for
Structures ".
Concrete blocking shall be placed between solid ground and the fitting to be anchored. The area of bearing on
the pipe and on the ground shall be as indicated or directed by the Engineer. The blocking shall, unless other-
wise indicated, be so placed that the pipe, fittings and joints will be accessible for repair.
The trench shall be excavated at least 6 Inches outside the outermost projections of the pipe or appurtenance
and the trench walls shaped or undercut according to the detail drawings or as required to provide adequate
space and bearing area for the concrete.
The pipe and fittings shall be adequately weighted and laterally braced to prevent floating, shifting or straining
of the pipeline while the concrete is being placed and taking initial set. The Contractor shall be solely respon-
sible for the sufficiency of such restraints.
(b) Metal Thrust Harness
(1) A metal harness of tie rods and pipe clamps of adequate strength to prevent movement or other suitable
means may be used instead of concrete backing, as approved or directed by the Engineer. Harness
rods, clamps, lugs, etc., shall be of stainless steel or hot - dipped galvanized steel and ductile iron, with 2
coats of BItumastic #50 and wrapped with a layer of 8 mil polyethylene film, to form a continuous protec-
tive wrap.
(c) Concrete Encasement, Cradles, Saddles and Seals
The pipe shall not be laid, except where indicated or approved by the Engineer when the pipe is found to have
less than 30 inches or more than 8 feet of cover or that the trench bottom is unstable or excessively wet. The
Engineer shall be notified and he may direct the Contractor to install a concrete seal, cradle, saddle or encase-
ment. Unless otherwise approved by the Engineer, all concrete cradles, concrete encasements, etc.. shall be
continuous and shall begin and end within 6 inches of the pipe joints. Concrete material and placement as
seal, cradles or saddles shall be Class B, Item 403, "Concrete for Structures ".
When indicated, pipe will be cradled in concrete per the Standard Detail Drawing for Concrete Cradle. Con-
crete for cradling will be poured after the pipe is In place and has been blocked or braced to prevent floating or
shifting.
(d) Anchorage Bulkheads
Concrete bulkheads keyed into the undisturbed earth shall be placed as indicated to support and anchor the
pipe and/or backfill against end thrust, slippage on slopes, etc. Concrete material and placement shall be
Class A, Item No. 403, "Concrete for Structures ".
(e) Trench Caps, Concrete Rip -Rap and Shaped Retards I I
Where called for by the Contract or as directed by the Engineer, concrete trench caps, concrete rip -rap and /or
shaped retards shall be placed as detailed by the standard drawings as protection against erosion. Concrete
material and placement shall be Class B, Item No. 403, "Concrete for Structures ".
(23) Wastewater Connections
(a) Connections to Mains 12 Inches and Smaller
All branch connections of new main lines shall be made by use of manholes.
Service stubs shall be installed as Indicated. Minimum grade shall be 1 percent and minimum cover shall be
41 feet at the curb. Standard plugs shall be Installed in the dead end before backfilling.
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Where a service connection to a main 12 inches or smaller Is indicated, a wye, tee or double wye shall be
installed.
Where a service connection to a main 15 inches or larger is indicated, a field tap may be made with the pipes
installed crown to crown. The tap should be made conforming to the pipe manufacturer's recommendations
with the Engineer's approval.
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Where not otherwise indicated, service connections to mains shall be installed at an angle approximately 45
degrees above the horizontal.
(b) Connections to the Existing System
(24) Water System Connections
(a) Shutoffs
Unless otherwise specified by the Engineer, at connections made to existing main shall be made at man-
holes with the crown of the inlet pipe installed at the same elevation as the crown of the existing pipe. Service
stubs installed on the existing system shall be installed by use of tapping saddles unless otherwise approved
by the Engineer. Extreme care shall be exercised to prevent material from depositing in the existing pipe as the
taps are being made.
When connections to existing mains are made, a temporary plug approved by the Engineer must be installed
downstream in the manhole to prevent water and debris from entering the existing system before final accep-
tance. These plugs shall be removed after the castings are adjusted to finish grade or when final acceptance is
given.
The Contractor shall, at his expense, make all necessary connections of new piping or accessories to the existing
water system. To minimize any inconvenience from outages, the Contractor shall schedule all such connections in
advance and such schedule must be approved by the Superintendent of Water Division before beginning any work.
The City will make all shutoffs on existing water mains where more than one valve is involved. The Contractor
will be required 10 notify the Engineer's field representative on the job at least 24 hours prior to the desired time
for any shutoff. Where only one valve will be operated, the Contractor may operate the valve under the imme-
diate supervision of the Engineer's field representative.
(b) Wet Connections to Existing Water System
The Contractor shall make all wet connections called for by the Contract or required to complete the work. A
wet connection shall include draining and cutting into existing piping and connecting a new pipeline or other
extension into the existing pressure piping, forming an addition to the water transmission and distribution
network.
The contract price for wet connections shall be full payment for all necessary shutoffs, excavation, removing
plugs and fittings, pumping water to drain the lines, cutting In new fittings, blocking and anchoring piping, bed-
ding and backfilling, placing the lines and service and all site cleanup.
No water containing detectable amounts of chlorine may be drained, released or discharged until specific plan-
ning and appropriate preparations to handle, dilute and dispose of such chlorinated water are approved in
advance by the City and the disposal operations shall be witnessed by an authorized representative from the
City.
(c) Pressure Taps to Existing Water System
The Contractor shall make all pressure taps called for by the Contract Documents or required to complete the
work. A pressure tap shall consist of connecting new piping to the existing water system by drilling Into the
existing pipe while it is carrying water under normal pressure without taking the existing piping out of service.
Unless otherwise provided by the Contract, the Contractor shall, at his expense, perform all necessary ex-
cavation, furnish and install the tapping sleeve, valve and accessories, provide the tapping machine, drill the
tap (unless otherwise indicated) and shall block, anchor and backfill the piping, valve and all accessories,
place the new piping in service and perform all site cleanup. Where that the City will make the tap, City forces
are not obligated or expected to perform any work except to provide tapping machine and drill the actual hole.
The full cost of such drilling and any other work required of City crews in order to complete the drilling, will be ,
charged to the Contractor and will be deducted from funds due the Contractor.
(d) Service Connections
Tapping of PVC or AC pipe for service connections may be made using either a service clamp or saddle or a
tapping sleeve recommended by the manufacturer and approved as satisfactory by the Engineer. Direct tap-
ping will not be permitted.
All service connections shall be Installed so that the outlet is at an angle of approximately 45 degrees above
horizontal at the main line.
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Precautions should be taken to ensure that the tapping saddle or sleeve is placed on the pipe straight to pre-
vent any binding or deformation of the PVC pipe. The mounting chain or U -boll strap must be tight.
Tapping shall be performed with a sharp shell type cutter so designed that it will smoothly penetrate heavy
walled PVC DR14 and 200 psi AC and will retain and extract the coupon from the pipe.
(25) Backfilling
(a) General
After the pipe has been bedded, laid, jointed, approved and any bedding envelope placed, backfilling shall be
done Immediately in accordance with the details Indicated, with approved material, except that when mortar
joints are used for jointing storm sewers, no backfill above the bedding shall be placed until the mortar has
cured for at least 6 hours.
During backfilling operations, no heavy equipment which might damage the pipe will be allowed until a mini-
mum cover of 12 inches above the top of pipe is obtained.
During the backfilling operations, special emphasis is placed upon the need for obtaining uniform backfill ma-
terial and uniform compacted density throughout the length and depth of the structure. Extreme care is to be
taken to insure proper backfill over the pipe. The maximum lift of backfill shall be determined by the equipment
selected and in no case shall it exceed 18 inches, loose measurement.
All backfill in streets and under structures will be tested by the City and must satisfy the specified density
requirements conforming to Section 00344, "Testing Laboratory Services" before final acceptance.
(b) General Corrugated Metal Pipe
After the corrugated metal pipe structure has been completely assembled on the proper line and grade and
headwalls constructed when indicated, selected material free from rocks over 8 inches in size from excavation
or borrow, as approved by the Engineer, shall be placed along both sides of the completed structures equally,
in uniform layers not exceeding 6 inches in depth (loose measurement), sprinkled if required and thoroughly
compacted between adjacent structures and between the structures and the sides of the trench or for a dis-
tance each side of the structures equal to the diameter of the pipe if pipe is laid above the existing ground.
Backfill material shall be compacted to the same density requirements as indicated for the adjoining sections
of embankment in accordance with the governing specifications thereof. Above the'/. point of the structure,
the fill shall be placed uniformly on each side of the pipe in layers not to exceed 12 inches, loose measure.
Prior to adding each new layer of loose backfill material, until a minimum of 12 inches of cover is obtained over
the crown of the pipe, an inspection will be made of the inside periphery of the corrugated metal 'structure
to determine if any floating, local or unequal deformation has occurred as a result of improper construction
methods.
(c) Backfill Materials
The Engineer may approve any of the following well graded materials:
1. Select trench material
2. Sand
3. Crushed rock cuttings
4. Rock cuttings
5. Foundation Rock
6. Blasted material with fines and rock
7. Cement stabilized material
8. Borrow
Within the 100 year flood plan sand will not be permitted for bedding or backfilling. The Engineer shall approve
the topsoil for areas to be seeded or sodded.
(d) Backfill in Street Right of Way
Placement of backfill under structures and within 2 feet of structures shall be compacted to the required den-
sity using any method, type and size of equipment which will give the required compaction without damaging
Page 31 04/17/86 510
the pipe or bedding. The depth of layers, prior to compaction, shall depend upon the type of sprinkling and
compacting equipment used and the test results thereby obtained. Prior to and in conjunction with the com-
paction operation, each layer shall be brought to the moisture content necessary to obtain the required density
and shall be kept leveled to insure uniform compaction over the entire layer. Testing for density will be in accor-
dance with Test Method Tex -114 -E and Test Method Tex - 115 -E.
Each layer of backfill must provide the density as required herein. Swelling soils (soils with plasticity index
of 20 or more) shall be sprinkled as required to provide not less than optimum moisture nor more than 2 per-
cent over optimum moisture content and compacted to the extent necessary to provide not less than 95 per-
cent nor more than 102 percent of the density as determined in accordance with Test Method Tex - 114 -E.
Nonswelling soils (soils with plasticity index less than 20) shall be sprinkled as required and compacted to the
extent necessary to provide not less than 95 percent of the density as determined in accordance with Test
Method Tex - 114 -E.
After each layer of backfill is complete, tests may be made by the Engineer. If the material fails 10 meet the
density indicated, the course shall be reworked as necessary to obtain the indicated compaction and the com-
paction method shall be altered on subsequent work to obtain indicated density and conform to Section 00344,
"Testing Laboratory Services ".
At any time, the Engineer may order proof rolling to test the uniformity of compaction of the backfill layers. All
irregularities, depressions, weak or soft spots which develop shall be corrected immediately by the Contractor.
Should the backfill, due to any reason or cause, lose the required stability, density or finish before the pave-
ment structure is placed, it shall be recompacted and refinished at the sole expense of the Contractor. Exces-
sive loss of moisture in the subgrade shall be prevented by sprinkling, sealing or covering with a subsequent
backfill layer or granular material. Excessive loss of moisture shall be construed to exist when the subgrade
soil moisture content is more than 4 percent below the optimum of compaction ratio density. Backfill shall be
placed from the top of the bedding material to the existing grade, base course, subgrade or as indicated. The
remainder of the street backfill shall be Flexible Base, Concrete or Hot Mix Asphalt Concrete as Indicated or to
replace in kind the surface removed to construct the pipe.
(e) Backfill in County Street or State Highway Right of Way
All work within the right of way must meet the requirements of (d) above, as a minimum and shall meet the
requirements of the permit issued by the County when their requirement are more stringent. Prior to the start
of construction, the Contractor will be responsible for contacting the appropriate SDHPT office or County
Commissioner's Precinct Office and for coordinating his activities with the operating procedures in effect for
utility cut permits and pavement repair under their jurisdiction. Approval for all completed work in the Slate or
County right of way must be obtained from the appropriate Official prior to final payment by the Owner.
(1) Backfill in Railroad Flight of Way
All work within the railroad right of way must meet the requirements of (d) above, as a minimum and shall meet
the requirements of the permit issued by the Railroad Owner when their requirements are more stringent.
Approval for all completed work in the railroad right of way must be obtained from the Railroad prior to final
acceptance
(g) Backfill in Easements
Where not otherwise indicated, all backfill in easements across dedicated parkways, planting spaces, under or
adjacent to utilities, structures, etc., shall satisfy all the requirements for backfill in streets or under structures.
Where there are no requirements for density, the Contractor may select whatever methods and procedures
may be necessary to restore the entire work area to a safe, useful and geologically stable condition satisfac-
tory to the Engineer and generally equal or superior to the conditions prior to construction.
In and near the flood plain of all streams and watercourses and on all slopes subject to erosion by runoff, all
backfill shall be compacted to at least 95 percent of maximum dry density as for street right of way, unless
otherwise directed by the Engineer.
All soil areas disturbed by the construction shall be covered with top soil and seeded conforming to Item No.
604, "Seeding for Erosion Control ". All turf, drainways and drainage structures shall be constructed or re-
placed to their original condition or better. No debris shall remain in the drainways or drainage structures.
(26) Quality Testing for Installed Pipe
(a) Wastewater Pipe Acceptance Testing
After the construction is complete, the Engineer shall determine whether the pipeline is to be tested for infiltra-
tion and extiltration by the low pressure air test method.
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Wastewater pipe installed in the City of Austin and its ETJ areas shall be tested for exfiltration and infiltration
as described below in "Exfiltration Test" and "Infikration Test" or by acceptable low pressure air test, as de-
scribed below. At the conclusion of either test series, the work shall be further tested for pipeline settlement as
described below. The Contractor shall be solely responsible for making proper structural repairs to those ele-
ments which do not pass these test requirements.
(b) Exfiltration Test
The pipeline shall be completely filled with water for its complete length or by sections as determined by the
Engineer. If tested for Its complete length, the maximum head at any point shall not exceed 25 feel unless
otherwise indicated. If tested in sections, the manholes in the test section shall be completely filled with water.
Atter the pipeline has been filled and allowed to stand for 24 hours, the amount of exfiltration shall be calcu-
lated. Any amount in excess of 200 gallons per inch 01 inside pipe diameter per mile per day shall be cause for
rejection.
(c) Infiltration Test
When the pipe placed in easements is completed, the upper portion of the ditch backf ill shall be removed to a
depth of not less than 18 inches below the finished surface and width equal to the original trench width. The
trench shall then be flooded with water until it is completely saturated and water stands in the ditch a minimum
of 12 inches deep. In cases of steep terrain, earthen dikes shall be used to assure that water will stand over
the trench. Atter it is apparent that the trench is completely saturated, the main shall then be inspected with
closed - circuit television for infiltration. Any section of the main or any service stub that indicates excessive
infiltration shall be cause for rejection.
This procedure shall not be used for pipes installed in areas where the P.I. of the surrounding material is 20 or
higher or where the backfill material has a P.I. of 20 or more.
(d) Pipeline Settlement Test
During the infiltration test or after the exfiltration test, the pipe will be TV inspected for possible settlement.
When air testing has been used, water shall be flowed into the pipe to permit meaningful observations. Any
pipe settlement which causes excessive ponding of water in the pipe shall be cause for rejection.
(e) Low Pressure Air Test of Gravity Flow Wastewater Lines
(1) General
Wastewater lines in sizes for which the City has testing equipment may, at the discretion of the Engineer,
be air tested between manholes. Backfilling to grade shall be completed before the test and all laterals
and stubs shall be capped or plugged by the Contractor so as not to allow air losses which could cause
an erroneous test result. Manholes are to be plugged so they are isolated from the pipe and cannot be
included in the test.
All plugs used to close the sewer for the air test must be capable of resisting the internal pressures and
must be securely braced. Place all air testing equipment above ground and allow no one to enter a
manhole or trench where a plugged sewer is under pressure. Release all pressure before the plugs are
removed. The testing equipment used must include a pressure relief device designed to relieve pressure
in the sewer under test at 10 psi or less and must allow continuous monitoring of the test pressures in
order to avoid excessive pressure. Use care to avoid the flooding of the air inlet by infiltrated ground
water. (Inject the air at the upper plug if possible.) Use only qualified personnel to conduct the test.
(2) Ground Water
Since the presence of ground water will affect the test results, test holes shall be dug to the pipe zone at
intervals of not more than 100 feet and the average height of ground water above the pipe (if any) shall
be determined before starting the test.
(3) Test Procedure
The Engineer may, at any time, require a calibration check of the instrumentation used. Use a pressure
gauge having minimum divisions of 0.10 psi and an accuracy of 0.0625 psi. (One ounce per square
inch.) All air used shall pass through a single control panel. Clean the sewer to be tested and remove all
debris where indicated. Wet the sewer prior to testing. The average back pressure of any groundwater
shall be determined (0.433 psi) for each foot of average water depth (if any) above the sewer.
Add air slowly to the section of sewer being tested until the internal air pressure is raised 10 4.0 psig
greater than the average back pressure of any ground water that may submerge the pipe.
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After the Internal test pressure is reached, allow at least 2 minutes for the air temperature to stabilize,
adding only the amount of air required to maintain pressure. After the temperature stabilization period,
disconnect the air supply.
Determine and record the time In seconds that is required for the intemal air pressure to drop from 3.5
psig to 2.5 psig greater than the average back pressure of any ground water that may submerge the
pipe.
Compare the time recorded with the time required as follows:
Pipe Size (Inches) 6 8 10 12 15 18 21 24
Time (Minutes) 3 4 5 6 7.5 9 10.5 12
Any drop in pressure, from 3.5 psig to 2.5 psig, in a time less than that required by the above table shall
be cause for rejection. When the line tested includes more than one size pipe, the minimum time shall
be that given for the largest size pipe included.
When lines are air tested, manholes are to be tested separately by exfiltration or infiltration.
(27) Pressure Pipe Hydrostatic Testing
After the pipe has been installed and backfiiled and all service laterals, fire hydrants and other appurtenances in-
stalled and connected, a leakage test, followed by a pressure test, will be conducted by the City. The City will furnish
the pump and gauges for the tests. The Contractor will be present and shall furnish all necessary assistance for
conducting the tests. The specified test pressures will be based on the elevation of the lowest point of the line or
section under test. Before applying the specified test pressure, all air shall be expelled from the pipe. If permanent air
vents are not located at all high points, the Contractor shall install corporation cocks at such points.
(a) Pressure Test
The entire project or each valved section shall be tested, at a pressure of 200 psi for a sufficient period (ap-
proximately 10 minutes) to discover all leaking or defective materials. Repairs shall be made by the Contractor
to correct any leaking or defective materials.
(b) Pressure Pipe Leakage Test
A leakage test will follow the pressure test and be conducted on the entire project or each valved section. The
leakage test shall be at 150 psi for at least 1 hour.
(1) Allowable Leakage
Leakage shall be defined as the quantity of water that must be supplied into any test section of pipe to
maintain the specified leakage test pressure (see above, "Pressure Pipe Leakage Test ") after the air in
the pipeline has been expelled and the pipe has been filled with water. The allowable leakage shall com-
ply with AWWA C -600 which defines the allowable leakage as:
L SD P
133,200 •
where L = Leakage in gallons per hour
S = Length of pipe In feet
D = Diameter (inside) of pipe in inches
P = Pressure in pounds per square inch
If such testing discloses leakage In excess of this specified allowable, the Contractor, al his expense,
shall locate and correct all defects In the pipeline until the leakage is within the Indicated allowance.
(28) Service Charges for Testing
No charge will be made to the Contractor for the City's test equipment, inspection, etc., when the test results show
that leakage is within the indicated allowable limits.
For each test, either for leakage or for pressure, which fails to meet the indicated requirements, the City's flat charge
of $50.00 for such tests will be charged to the Contractor and will be deducted from any funds due the Contractor.
510 04/17/86 Page 34
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(29) Sterilization of Potable Water Lines
The Contractor shall protect all piping materials from contamination during storage, handling and installation. Prior to
disinfection, the pipeline interior shall be clean, dry and unobstructed. All dirt, debris, gasket lubricant, etc., shall be
washed from the line by swabbing with hypochlorite solution and /or flushing with clean water.
The City, at Its expense, will supply the test gauges and the concentrated disinfecting material and City personnel
will supervise and direct the overall sterilization procedure. The Contractor, at his expense, shall provide all other
equipment, supplies and the necessary labor to perform the sterilization under general supervision of the City.
(a)
Procedure and Dosage
All valves shall be arranged to prevent the strong disinfecting dosage from flowing back into the existing water
supply piping. The new pipeline shall then be completely filled with disinfecting solution by feeding the concen-
trated chlorine and approved water from the existing system uniformly into the new piping in such proportions
that every part of the line has minimum concentration of 50 parts per million (50 ppm or 50 mg /liter) available
chlorine.
Unless otherwise indicated, all quantities called for herein refer to measurements by the testing procedures in
the current edition of "Standard Methods ". The chlorine concentration of each step In the sterilization proce-
dure shall be verified by chlorine residual determinations. This disinfecting solution shall be retained in the
piping for at least 24 hours and all valves, hydrants, etc., shall be operated to disinfect all their parts. lter this
retention period, the water shall contain no less than 25 parts per million chlorine throughout the tre ted sec-
tion of the pipeline.
This heavily chlorinated water shall then be carefully flushed from the line until the chlorine concentration is no
higher than the residual generally prevailing In the existing distribution system or approximately one part per
million. Proper planning and appropriate preparations to handle, dilute and dispose of this strong chlorine solu-
tion without causing injury or damage to the public, the water system or the environment must be approved by
the City before flushing of the line may begin and the flushing shall be witnessed by an authorized represen-
tative of the City.
(b) Bacteriological Testing
After final flushing of the strong disinfecting solution, water samples from the line shall be tested for bac-
teriological quality by the City and must be found free of colilorm organisms before the pipeline may be placed
in service. One test sample shall be drawn from the end of the main and additional samples collected at inter-
vals of not more than 1000 feet along the pipeline.
The Contractor, at his expense, shall install sufficient sampling taps at proper locations along the pipeline.
Each sampling tap shall consist of a standard corporation cock installed in the line and extended with a copper
tubing gooseneck assembly. After samples have been collected, the gooseneck assembly may be removed
and retained for future use.
Samples for bacteriological analysis shall be collected only from suitable sampling taps in sterile bottles
treated with sodium thiosulfate. Samples shall not be drawn from hoses, fire hydrants, etc. The City, at its
expense, will fumish the sterile sample bottles and may, at its discretion, collect the test samples with City
personnel.
ff the initial disinfection fails to produce acceptable sample tests, the disinfection procedure shall be repealed
(without extra compensation) until satisfactory test results have been obtained before the piping may be
placed in service.
(30) Cleanup and Restoration
It shall be the Contractor's responsibility to keep the construction site neat, clean and orderly at all times.
Cleanup shall be vigorous and continuous to minimize traffic hazards or obstructions along the streets and to drive-
ways. Trenching, backfill and cleanup shall be coordinated as directed by the City. The Engineer shall regulate the
amount of open ditch and may halt additional trenching if cleanup is not adequate to allow for orderly traffic flow and
access.
Materials at the site shall be stored In a neat and orderly manner so as not to obstruct pedestrian or vehicular traffic.
All damaged material shall be removed from the construction site immediately and disposed of in a proper 'manner.
All surplus excavated materials become the property of the Contractor for disposal at his expense. After trenching,
the Contractor shall immediately remove all excavated materials unsuitable for or in excess of, backfill requirements.
Immediately following the pipe laying work as it progresses, the Contractor shall backfill, grade and compact all
excavations as provided elsewhere and shall Immediately clean up and remove all unused soil, waste and debris
and restore all surfaces and improvements to a condition equal or superior to that before construction began and to
Page 35 04/17/86 510
an appearance which complements the surroundings. The Contractor shall grade and dress the top 6 inches of earth
surfaces with soil or other material similar and equal to the surrounding, fill and smooth any visible tracks or ruts,
replace and re- establish all damaged or disturbed turf or other vegetation and otherwise make every effort to en-
courage the return of the entire surface and all improvements to a pleasant appearance and useful condition appro-
priate and complementary to the surroundings and equal or similar to that before construction began.
510.5 Measurement
•
Pipe will be measured by the linear toot along the centerline of the pipe for the various sizes and classes of pipe in place, in
accordance with these specifications, complete and accepted by the Engineer, Including excavation and backfill, unless they are
included in the bid as a pay item.
Where wyes, branches or connections to existing pipe lines are involved, measurement of the new connecting pipe will be made
from the intersection of its central axis with the outside surfaces of the pipe Into which it connects. Where inlets, headwalls, catch
basins, manholes, junction boxes or other structures are included in lines of pipe, that length of pipe tying into the structure wall
will be included for measurement but no other portion of the structure length or width will be so included.
For multiple pipes, the measured length will be the sum of the lengths of the barrels measured as prescribed above.
Any foundation mat required shall be measured by the cubic yard of the unstable material removed between the next line of the
trench to a depth 2 feet below the design bedding elevation.
510.6 Payment
Payment for pipe, measured as prescribed above, will be made at the unit price bid per linear foot for the various sizes of pipe, of
the materials and class indicated, unless unstable material is encountered or trench excavation and backfill is bid as a separate
item.
The foundation seal shall be paid for at the unit price bid per cubic yard, which shall be full payment for all excavation and
removal of unsuitable material and furnishing, placing and compacting the foundation rock, coarse aggregate or other approved ,
material all complete in place.
Excavation and backfill, when included as a separate pay item, will be measured by Item No. 510 -C or D.
Excavation and backfill, when included as pipe installation will not be measured as such but shall be included in the unit price bid
for constructing pipe and measured as pipe complete in place including excavation and backfill. As established in the bid, pipe
including excavation and backfill may be either (1) payment for any and all depths or (2) payment in 2 foot incremental depth.
Payment for pipe excavation will be included in the Bid to be measured and paid by any of the methods of measurement and
payment methods indicated above or may be measured as "Structural Excavation and Backfill" as indicated.
Payment shall be full compensation, in accordance with the pay items set in the bid, for excavation, furnishing, hauling and
placing pipe including lugs and all incidental and subsidiary materials and work; preparing, shaping, dewatering and shoring of
trenches; hauling, placing and preparing bedding; for connecting to new or existing systems or structures; for hauling, moving,
placing and compacting backfill materials and for all other incidentals necessary to complete the pipe Installation as indicated.
(1) Pipe
When called for in the Bid, pipe shall be paid for at the unit contract price bid per linear foot for the size and type of
pipe specified at the depth specified, complete in place. The bid price per linear foot shall include all clearing, ex-
cavation, bedding material, fittings, plugs, lugs, pipe coatings, connection to the existing system, disposal of surplus
materials, laying of pipe, backlilling and cleanup. Measurement for depth shall be from the existing ground surface or
proposed street subgrade, whichever is less, over the centerline of the pipe. Measurement for length shall be the
horizontal distance along the centerline of the pipe as surveyed by the Engineer. Payment will also represent com-
pensation for removal and replacement of pavement, curb, drainage structures, driveways and any other improve-
ments damaged during construction. Concrete blocking for supporting and reinforcing bends and thrust blocks shall
be included in the cost for pipe.
No separate payment will be made for welded joints or hamessed joints required for thrust restraint which are sched-
uled or indicated.
(2) Concrete Cradles and Seals
When called for in the Bid, concrete seals or cradles shall be paid for at the unit contract price bid per linear foot for
the size of pipe specified, complete in place.
Concrete Retards
When called for in the Bid, Concrete Retards shall be paid under Item No. 593, "Concrete Retards ".
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(3)
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End
(4) Boring, Jacking and Tunneling
When called for in the Bid, boring, jacking and tunneling shall be paid under Item No. 501, "Jacking or Boring" or
Item No. 502, 'Tunneling ".
(5) Wet Connections to Water Mains
Wet connections shall be paid for at the unit price bid per each, complete in place, according to the size of the main
that is in service and shall be full compensation for all work required to make the connection and place the pipe in
service. Cast iron fittings shall be paid for as a separate item.
(6) Fittings
Cast iron and ductile iron fittings of the class indicated, furnished In accordance with these specifications will be paid
for at the unit price bid per ton, complete in place, according to ANSI A 21.10 (AWWA C -110) scheduled weights for
mechanical joint fittings furnished, including glands, bolts and gaskets. Class to be as specified in the Contract.
Steel cylinder concrete pipe fittings will not be paid for separately. The Contractor shall include these in his bid for
pipe.
(7) Concrete Trench Cap and Encasement
Where the distance between the top of the concrete encasement and the top of the trench cap is less than 36 inches,
the concrete cap and encasement will be poured as one unit and paid for under this bid item at the contract price bid
per linear foot. When the distance above is greater than 36 Inches or when the trench cap is placed separately, the
trench cap shall be paid for as a separate item, per linear foot, complete In place.
(8) Cement— Stablilized Backfill
Cement- stablilized backfill shall be paid for at the unit price bid per linear foot and shall be full payment to the Con-
tractor for furnishing and installing the required material, mixed, placed and cured complete in place.
(9) Concrete Encasement
When called for in the Bid, Concrete Encasement shall be paid under Item No. 505, "Encasement and Encasement
Pipe ".
Payment, when included as a contract pay Item, will be made under one of the following:
Pay item No. 510 -A: Pipe, — Dia. (all depths), including Excavation and Backfill — Per Linear Fool.
Pay item No. 510 -B: Concrete Seal or Cradle, Foot diameter pipe, complete in place — Per Linear Foot.
Pay item No. 510 -C: Pipe Excavation, Foot Width — Per Linear Foot.
Pay Item No. 510 -D: Pipe Trench Backfill, Foot Width — Per Linear Foot.
Pay Item No. 510 -E: Concrete Trench Cap, complete In place, Foot Width — Per Linear Foot.
Pay Item No. 510 -F: Wet Connections (_dia x dia) complete in place, — Per Each.
Pay Item No. 510 -G: Pressure Taps ( dia x _ dia) complete in place — Per Each.
Pay Item No. 510 -H: Cast Iron or Ductile Iron Fittings complete in place — Per Ton.
Pay Item No. 510.1: Concrete Cap and Encasement, Diameter Pipe, complete in place — Per Linear Foot.
Pay item No. 5104: Cement Stabilized Backfill, Diameter Pipe, complete in place — Per Linear Foot.
Pay Item No. 510-K: Foundation Rock, complete in place — Per Cubic Yard.
Pay Item No. 510-L: Coarse Aggregate, complete in place — Per Cubic Yard.
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511.1 Description
This item shall consist of valves furnished and installed as indicated. Unless otherwise indicated, all valves 3 inches and larger
shall be AWWA-type valves of suitable design and fully equipped for service buried in the earth, without need for further modi-
fication and shall be wrapped with 8 -mil polyethylene film with all edges and laps securely taped to provide a continuous wrap.
Where not indicated, the Contractor may use valves with any type end -joint allowed for fittings of the pipe class being used.
Unless otherwise indicated, all valve stems shall be adjusted to situate the operating nut not less than 30 inches nor more than
36 inches below the proposed ground or paving surface of the finished project.
511.2 Materials
One piece valve shafts which extend full -size completely through the valve disk, shall be made of Type 304 sta•-tess steel if
isolated by double packings or compressible 0-rings from any contact with the liquid.
(1) Samples, Inspection and Testing Requirements
All tests and inspections called for by the applicable standards shall be perforated by the manufacturer. Upon re-
quest, results of these tests shall be made available to the purchaser.
(2) Other Requirements
Each bid shall be accompanied by:
Complete data covering the operator, including type and size, model number, etc., the manufacturer's name
and address of his nearest service facility, the number of tums to fully open or close the valve, detailed Instruc-
tions for calibrating the limit stops for open and closed positions and any other information which may be
necessary to operate and maintain the operator.
Complete dimensional data and Installation instructions for the valve assembly as it is to be installed, including
the operator.
511.3 Valves
Complete replacement parts lists and drawings, identifying every part for both the valve and operator.
Item No. 511
Water Valves
(1) Iron -Body Gate Valves
Unless otherwise indicated, all valves shall conform to the current AWWA Specification C -500 for "Gate Valve for
Ordinary Water Works Service" and shall be for buried service.
(a) Stem Seals
Gate Valves shall have 0-ring stem seals for valves 12 inches and smaller. Conventional stuffing boxes and
packing shall be used for valve sizes greater than 12 inches
(b) Operation
All valves shall have nonrising stems with a 2 inch square operating nut, turning clockwise to close.
(c) Gearing
Gate Valves in 16 inch and larger sizes shall be geared and shall be the horizontal, level- geared type.
(d) Bypass Valves
Bypass valves shall be nonrising stem gate valves which meet the same standards as required of the main
valve.
(e) Valve Ends
Valve ends shall be either push -on joint, mechanical joint, flanged or hub ends as indicated.
(1) Gear Case
Gear cases shall be the extended type, attached to the bonnet of the valve in such a manner as 10 permit
repacking the valve stuffing box without disassembly.
Page 1 04/17/66 511
(2) Butterfly Valves
Unless otherwise indicated, all valves shall conform to the current "AWWA" Standard for "Rubber- Seated Butterfly
Valves ", AWWA Specification C -504, Class 150B for buried service.
(3)
(a)
(b) Performance Requirements
Unless otherwise indicated, valve operators shall be sized to seat and unseat and open and close the valve
with 150 psi shutoff pressure differential across the disk and allow a flow velocity of 16 feet per second past
the disk.
511 04/17/86 Page 2
Functional Requirements
Valves shall have flanged connections on both ends unless otherwise called for.
Unless otherwise Indicated, valves which are stipulated to be motorized shall have the following:
Vertical shafts with valve stem extension and bonnet of the length indicated or as required to locate the
centerline of the motor operator shaft approximately 4 feet 0 inches to 4 feet 6 inches above ground.
Electric motor operators with cast or malleable iron auxiliary override handwheel turning clockwise to
close and valve disk position indicator located on the operator.
Unless otherwise indicated, valves which are stipulated to have handwheels shall have vertical operating
stems extended as specified and cast iron or malleable iron handwheels turning clockwise to close.
Where not otherwise indicated, valves shall have vertical operating stems extended as indicated or to approxi-
mately 2 feet 6 inches to 3 feet 0 inches below ground and 2 inch square "AWWA" operating nut.
The rubber seat and mating surface shall be a full circle 360 degree seat not penetrated by the valve shaft. The
rubber seat shall be so mounted that it can be replaced and /or adjusted with ordinary hand tools without dis-
assembling the valve. On 24 inch and larger valves, the seat shall be completely replaceable and /or adjustable
with common hand tools without disassembling the valve from the pipeline.
Unless otherwise indicated. motorized butterfly valves shall have a 230/460 volt, 3 -phase reversing motor -
operators extended above ground and all necessary controls (except signal wires) for both local and remote
operation, with manual override and handwheel (see Standard Products List, QPL and Specification W W'102).
Brass (Bronze) Valves
Unless otherwise indicated, brass gate valves shall be those makes and models included in the Standard Product
List (QPL WW-174). Brass globe valves by the same manufacturers will be acceptable when required.
(4) Air - Vacuum Release Valves
Unless otherwise indicated, these valves shall be as included in the Standard Products List (OPL WW -367).
(5) Fire Hydrants
All fire hydrants shall be the "break- away" traffic models with 51/4 inch'valve openings as included in the Standard
Product List (QPL WW -3).
511.4 Construction Methods
(1) Setting Valves, Drains and Alr Releases
Unless otherwise indicated, main line valves, drain valves and piping, air and vacuum release assemblies and other
miscellaneous accessories shall be set and jointed in the manner described for cleaning, laying, and jointing pipe.
Unless otherwise indicated, valves shall be set In line with the radius point and the corresponding point of curvature
or point of tangency of adjacent curbs or right of way lines. Valves shall be installed and the stems adjusted so that
the top operating stems will be at the proper depth required for the piping at the location indicated above. Valve
boxes and valve stem casings shall be firmly supported and maintained, centered and aligned plumb over the valve
or operating stern, with the top of the box or casing installed flush with the finished ground or pavement in existing
streets and installed with the top of the box or casing approximately 6 inches below the standard street subgrade in
streets which are excavated for paving construction or where such excavation is scheduled or elsewhere as directed
by the Engineer.
Drainage branches or air blowoffs shall not be connected to any sanitary sewer or submerged in any stream or be
installed in any other manner that will permit back siphonage into the distribution system (see "Standard Detail
Drawings "). Every drain line and every air release line shall have a full sized independent gate valve clanged directly
to the main. Flap- valves, shear gates, etc., will not be accepted.
(2) Setting Fire Hydrants
Fire hydrants shall be located in a manner to provide accessibility and In such a manner that the possibility of dam-
age from vehicles or injury to pedestrians will be minimized. Unless otherwise directed, the setting of any hydrant
shall conform to the following:
When placed behind a curb, the hydrant barrel shall be set so that no portion of the pumper or hose nozzle cap
will be less than 12 nor more than 24 inches from the gutter face of the curb or less than 20 feet from the curb
line intersection of any street. If set between streets, the hydrant shall be placed as directed by the Engineer.
When set in the lawn space between the curb and the sidewalk or between the sidewalk and property line, no
portion of the hydrant or nozzle cap shall be within 6 Inches of the sidewalk.
All hydrants shall stand plumb and shall have their nozzles parallel with or at right angles to the curb with the pumper
nozzle pointing normal to the curb. They shall conform to the finish grade with the hydrant bury mark approximately
level with the ground or other finish grade, with the large pumper nozzle approximately 18 inches above grade as
indicated without the use of hydrant extensions except where authorized by the Engineer. Each hydrant shall be
connected to the main pipe with the 6 Inch Ductile Iron branch.
Below each hydrant, a drainage pit 2 feet in diameter and 2 feet deep shall be excavated and filled compactly with
coarse gravel or broken stone mixed with coarse sand under and around the blow of the hydrant, except where
thrust blocking is situated and to a level 6 inches above the hydrant drain opening. No hydrant drainage pit shall be
connected to a sanitary sewer. The bowl of each hydrant shall be well braced against unexcavated earth at the end
of the trench with concrete thrust blocking (taking care not to obstruct the hydrant drain holes) or It shall be tied to the
pipe with approved metal harness rods and clamps. Hydrants shall be thoroughly cleaned of dirt or foreign matter
before setting.
(3) Pressure Taps
The Contractor shall make all pressure taps called for by the Contract Documents or required to complete the work.
A pressure tap shall consist of connecting new piping to the existing water system by drilling into the existing pipe
while it is carrying water under normal pressure without taking the existing piping out of service.
Unless otherwise provided by the Contract, the Contractor shall, at his expense, perform all necessary excbvation,
furnish and install the tapping sleeve, valve and accessories, provide the tapping machine, drill the tap, unless other-
wise specifically provided for and shall block, anchor and backfill the piping, valve and all accessories, place the new
piping in service and perform all site cleanup. Where the plans or other contract documents stipulate that the City will
"make the tap ", City forces are not obligated or expected to perform any work except to provide the tapping machine
and drill the actual hole. The full cost of such drilling and any other work required of City crews in order to complete
the drilling, will be charged to the Contractor and will be deducted from funds due the Contractor.
(4) Plugging Dead Ends
Standard plugs shall be Inserted into the bells of all dead ends of pipes, tees or crosses and spigot ends shall be
capped. All end plugs or caps shall be secured to the pipe as provided under section VIA -3.10, "Pipe Anchorage,
Support and Protection ".
(5) Protective Covering
Unless otherwise Indicated, all flanges, nuts, bolts, threaded outlets and all other steel components buried and in
contact with earth or backfilt shall be wrapped with 8 -mil (minimum) polyethylene film meeting ANSI /AWWA Specifi-
cation C- 105 - current, with all edges and laps taped securely to provide a continuous and watertight wrap.
(6) Valve Stem Casing and Cover
Use City of Austin Standard (see "Standard Detail Drawings ").
(7) Drain Valve Installations
Use City of Austin Standard (see "Standard Detail Drawings ").
(8) Air Release Assemblies
Use City of Austin Standard (see "Standard Detail Drawings "). I
Page 3 04/17/86 511
(9) Pressure Reducing Valves
Where pressure in the City lines exceeds 80 psi, "Pressure Reducing Valves" approved by the City will be included
in the customers' water service piping at a location approved by the City (see Standard Product List, QPL WW-139).
(10) Connections to Existing System
The Contractor shall, at his expense, make all necessary connections of new piping or accessories to the existing
water system. To minimize any inconvenience from outages, the Contractor shall schedule all such connections in
advance and such schedule must be approved by the Superintendent of the Water Support Services Division before
beginning any work on such connections.
(11) Shutoffs
The City of Austin will make all shutoffs on existing mains where more than 1 valve is involved. The Contractor will be
required to notify the Engineer's field representative on the Job at least 24 hours prior to the desired time for any
shutoff. Where only 1 valve will be operated, the Contractor may operate the valve under the immediate supervision
of the Engineer's field representative.
511.5 Measurement
Fittings satisfactorily furnished and installed in accordance with this item shall be measured per pound. Valves, fire hydrants and
wet connections installed as prescribed above shall be measured per each. Fire hydrant barrel extensions completed as speci-
tied above shall be measured per vertical foot.
511.6 Payment
Payment shall be made for finished work and include all labor, tools, materials, constructing and completing the item on which
payment is made.
(1) Fitting
Cast iron and Ductile Iron fittings furnished in accordance with these specifications will be paid for on the basis of the
scheduled weights given in the applicable specifications for the fittings fumished.
Steel cylinder concrete pipe fittings will not be paid for separately. The Contractor shall include these in his bid for the
laying of pipe.
Valves
Valves will be paid for at the unit price bid, including valve stem casing and cover, excavation, setting and adjusting to
proper grade and anchoring in place.
Automatic Release Valves
Installation of air release assemblies shall be paid for at the unit price bid per valve installation and shall include
threaded valve or corporation cock, pipe, fittings, concrete meter box and cover, complete in place.
Fire Hydrants
Fire hydrants will be paid for at the unit price bid per each and shall not include pipe, fittings and valves between the
main line and the fire hydrant.
Fire Hydrant Barrel Extensions
In cases where the bury of the fire hydrant Is greater than 4 feet, the barrel extension will be
foot, complete in place, including rod extensions, bolts and all other required accessories
Wet Connections
Wet connections shall be paid for at the unit price bid per each, complete in place, according
that is in service and shall be full compensation for the work, except that cast iron fittings
separate item.
Payment will be made under one of the following:
Pay Item No. 511 -A: Fittings — Per Pound.
Pay Item No. 511 -B: Valves, Type — — In Dia — Per Each.
Pay Item No. 511 -C: Fire Hydrants — Per Each.
Pay Item No. 511 -D: Fire Hydrant Barrel Extensions — Per Vertical Foot.
Pay Item No. 511 -E: Wet Connections (— dia x _ dia) — Per Each
End
511 04/17/86 Page 4
paid for by the vertical
to the size of the main
shall be paid for as a
Item No. 803
Barricades, Signs and Traffic Handling
803.1 Description
This item shall consist of providing, installing, moving, replacing, maintaining, cleaning and removing temporary or permanent
street closure barricades. signs or other devices required to handle the traffic in conformance with the current edition of the Texas
Manual 01 Uniform Traffic Control Devices for Street and Highways and as indicated or directed by the Engineer. Construction
Detours, if required, shall conform to Item No. 801, "Construction Detours ". Capital Improvement Project signs shall conform to
Item No. 802, "Capital Improvement Project Signs ".
803.2 Materials
All matenals used in barricades, signs and traffic handling shall conform to the following:
(1) Signs
Sign Plates — .080 in thickness alodine finished Federal Specification 6061 — T6 aluminum
Sign Posts —1.25 ounce /square foot hot dipped galvanized welded steel tubing ASTM A 513, O.D. 2.375
Inches, wall thickness .065 Inch, 1.60 pounds per foot.
Hardware — Aluminum alloy ASTM A 444 sign hardware tor clamp casting or stainless steel with galvanized
or electroplated cold rolled steel U bolts, bolts, washers and nuts.
(2) Sign Plate Message and Size
Sign Designation
Size
OM — 4R 18 inch x 18 inch
W14 — 1 30 inch x 30 inch
(3) Lumber
Rails shall be new unweathered S4S grade #2 fir or yellow pine, of the size indicated.
Posts, of the size indicated, shall be pressure treated with pentachlorophenol.
(4) Concrete
Concrete shall be Class A Concrete conforming to Item No. 403, "Concrete for Structures ".
(5) Retro - Reflective Sheeting
Red and white strips shall conform to Table I CIE Chromaticity Coordinates, ASTM Designation D 523, ASTM 397,
SDHPT Test Method Tex - 842 -B, ASTM D-987-48%, Atlas Twin ARC Weathering ASTM E 42-69, Type E in accor-
dance with ASTM D 822 -60X which requires the ASTM E 42 Type E Atlas XW data; L -2300B dated January 7, 1970.
(6) Paint
Exterior Oil base paint, colors as indicated.
803.3 Construction Methods
Prior to commencing construction, suitable "Barricades, Signs and Traffic Handling" devices shall be installed to protect the
workers and the public.
The Contractor shall be responsible for installing all markers, signs and barricades conforming to the Manual on Uniform Traffic
Control Devices and /or as indicated. If, in the opinion of the Engineer, additional markers, signs or barricades are needed in the
interest of safety, the Contractor will install such as are required or as directed by the Engineer.
803.4 Maintenance
It shall be the Contractor's responsibility to maintain, clean, move and replace fl necessary, barricades, signs and traffic handling
devices during the time required for construction of the project. Permanent barricades shall be constructed as required after the
completion of the street by drilling holes to place the posts and concrete foundations. Foundation concrete shall be cured before
the rails are attached. When no longer needed all temporary Barricades, Signs and Traffic Handling Devices shall be removed
and the area restored to its original condition or as directed by the Engineer.
Page 1 04/17/86 803
803.5 Measurement
The work performed and the materials furnished by this item as indicated, except for barricades, will not be measured for pay-
ment but will be considered subsidiary to the work or to Item No. 801, "Construction Detours ".
Barricades shall be measured as each complete barricade constructed and placed as indicated. Any temporary barricades fur-
nished shall not be measured for payment and shall be considered subsidiary to the work or to Item No. 801, "Construction
Detours ".
803.6 Payment
The work performed and material furnished as prescribed by this item will be paid for at the unit price bid for "Barricades" per
each complete barricade.
Payment will be made under:
Pay Item No. 803: Barricades — Per Each.
End
803 04/17/86 Page 2
ATTEST:
NE
RS1023OD
LAND, City Secretary
RESOLUTION NO. l530 R
WHEREAS, the City of Round Rock has duly advertized for bids for
the Loop 384 Utility Adjustments Phase 2 Project, and
WHEREAS, Nelson Lewis Inc. has submitted the lowest and best
bid, and
WHEREAS, the City Council wishes to accept the bid of Nelson
Lewis Inc., Now Therefore
BE IT RESOLVED BY THE COUNCIL OF THE CITY OF ROUND ROCK, TEXAS
That the bid of Nelson Lewis Inc. is hereby accepted as the
lowest and best bid, and the Mayor is hereby authorized and directed
to execute on behalf of the City a contract with Nelson Lewis Inc. for
the Loop 384 Utility Adjustments Phase 2 Project, a copy of said
contract being attached hereto and incorporated herein for all
purposes.
RESOLVED this 23rd day of October, 1990.
MIKE ROBINSON, Mayor
City of Round Rock, Texas
: PUBLIC WORMS DEPARTMENT BIDS EXTENDED AND CHECKED
-
1. ` 221 East Main Street BID TABULATION BY: Daniel Lynn Holden
Round Rock, Texas 78664
(512) 255 -3612 _ DATE, Mtnfwr 17, loom
/ - SHEET 1 OF 2
CONTRACT: Loop 384 Utility Adjustments Phase Two
BIDDERS
' --
LOCATION: City Hall 3rd floor -
Nelson Lewis, Inc.
Bid Bond ?Cashiers checl
H and H Concrete
Construction Co., Inc.
-
Bid Bond ?Cashiers checkBid
- -
Bond?
_
-
Bid Bond? -
BID DATE: October 16, 1990 TIME:- 2:00 pm
- - - -
•
ITEM
UN1T
APPROX.
QUANTITY
UNIT
PRICE
COST
'UNIT
PRICE
COST
UNIT
PRICE
COST
UNIT
PRICE
COST
1. Approx. STA. 40137 +50; cut 6"
water line, install flanges
2.
L.S.
1
$ 1,500
$ 1,500
$ 10,000
$ 10,000
-
_ -
Approx. STA. 40150+14 L.S.
Vertical Adjustment of 6" W.L.
1
3,500
3,500
3,000
3,000
3. Approx. STA. 40163 -+00; L.S.
Adjust 6" water lines -
1
--4,000
4,000,
5,000
F _
. 5,000
-
4. Approx. STA. 40165+64; L.S.
Horizontal adjustment of 6 "41.1
1
-�
2,500
2,500
3,000
3,000
5. Approx. STA. 40173+90; L.S.
Vertical adjustment of 12 "W,5.
1
5,000
5,000
4,500
4,500
, 'x
h;' •, q 1
6. Approx. STA. 40175 +33; L.S.
Horiz. adjustment of 12" W.L.
1
3,500
3,500 '
5,000
5,000
....'
` , yN 10 q
f "... .. - ••••• I4MOEN
"
7. Approx.STA. 40178+80; L.S.
Horiz. adjustment of 12" W.L.
1
3,500
3,500
5,000
5,000
Un ylL 2
7 1
/
f v :~ • r.....• 63225 o p i",..1.
E,
1#73 tt
8. Approx. STA. 40181 +57; L.S.
Horiz. adjustment of 12" W.L.
1
3,500
3,500
3,500
3,500
tS-IS •
( l S SIONAt E.
�•••••.`.
9. Approx. STA. 40186-1-20 L.S
Vertical adjustment of 8 "W.L.
1
2,500
2,500
-
9,500
9,500
10. Trench Safety Systems L.S.
1
2,000
2,000
1,000
1,000
T01AL BASE BID (Items 1 thur 10)
$ 31,500
$ 49,500
E CITY OF ROW
a., drat•
- :5 CIT1 OF ROUND nO-I:
EXTENDED ����„ PUE' WORKS DEPARTMENT -- LIDS EXTENDED AND CHECI;ED
1 � 2 21 East Main Street BID TABULATION _
' "`-"`•' Round Rook, Texas 780564 BY: Daniel Lynn Halden
- \ \- r (512) 255 -3612 - DATE: fx•r2 77.
. _-
C1990 2
CONTRACT: Loop 384 Utility Ad2ustments Phase Two
- - — —
Nelson Lewis, Inc.
-
Bid Bond?
_
-Bid Bond?
-
- - -
--
Bid Bond? -
LOCATION: _City Hall 3rd floor
H and H Concrete
Construction Co., Inc.
Bid Bond?
- -
BID DATE: October 16, 1990 . TIME: 2 :00 Pm _ -
- - • - -
ITEM
UNIT
APPROX.
QUANTITY
UNIT
PRICE
COST
'UNIT
PRICE
COST
UNIT
PRICE
COST
UNIT
PRICE
COST
10A. Approx. STA. 40173 + 90;
12" Bore in lieu of item 5
L.S.
1
$ 16,900
$ 16,900
$ 6,000
$ 6,000
11A. Approx. STA. 40186 + 20;
8" Bore in - lieu of 9
L.S.
1
14,200
14,200
4,000
4,000
TOTAL ALTERNATE BID (Items 1,2,3,
4,6,7,R,10,10A,611A)
-
$ 55,100
$45,500 *
*As corrected
a :b,dtab
DATE: October 18, 1990
SUBJECT: City Council Meeting, October 23, 1990
ITEM: ' a resolution authorizing the Mayor
to enter into a contract for Loop 384 Utility
Adjustments, Phase Two
STAFF RESOURCE PERSON: Danny Malden
STAFF RECOMMENDATION:
On October 16, 1990, two bids were received for the construction
of Loop 384 Utility Adjustments, Phase Two. These improvements
are necessary in order to avoid conflicts with drainage
improvements to be constructed by the Texas Highway Department on
Loop 384 (Mays Street). Nelson Lewis, Inc. submitted the lowest
and best bid of $31,500.00. Staff recommends acceptance of this
bid. Please see the attached bid tabulation.