CM-2019-0264 - 8/30/2019STATE OF TEXAS §
COUNTY OF WILLIAMSON §
SUPPLEMENTAL CONTRACT NO.2
TO CONTRACT FOR ENGINEERING SERVICES
FIRM: LOCKWOOD ANDREWS & NEWNAM INC. ("Engineer")
ADDRESS: 8911 N. Capital of Teas Hwy, Building 2 Suite 2300 Austin TX 78759
PROJECT: Oak Bluff/Greenfield Drainage Improvements
This Supplemental Contract No. 2 to Contract for Engineering Services is made by and between
the City of Round Rock, Texas, hereinafter called the "City" and Lockwood, Andrews &
Newnam, Inc., hereinafter called the "Engineer".
WHEREAS, the City and Engineer executed a Contract for Engineering Services, hereinafter
called the "Contract", on the 28th day of April, 2016 for the Oak Bluff Greenfield Drainage
Improvements Project in the amount of $80,295.00; and
WHEREAS, the City and Engineer executed Supplemental Contract No. 1 on November 21,
2017 to amend the scope of services and to increase the compensation by $98,224.00 to a total of
$178,519.00; and
WHEREAS, it has become necessary to amend the Contract to modify the provisions for the
scope of services and to increase the compensation by $38,000.00 to a total of $216,519.00;
NOW THEREFORE, premises considered, the City and the Engineer agree that said Contract
is amended as follows:
1.
Article 2 Engineering Services and Exhibit B Engineering Services shall be amended as set
forth in the attached Addendum to Exhibit B. Exhibit C Work Schedule shall be amended as set
forth in the attached Addendum to Exhibit C.
Ir.
Article 4,_ Compensation and Exhibit D Fee Schedule shall be amended by increasing by
$38,000.00 the maximum amount payable under the Contract for a total of $216,519.00, as
shown by the attached Addendum to Exhibit D.
IN WITNESS WHEREOF, the City and the Engineer have executed this Supplemental
Contract in duplicate.
Supplemental 9665 ContractN
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0199.1607• D0429b65 1 84275
LOCKWOOD, ANDREWS & NEWNAM, INC.
By:
2 20
Date
Supplemental Contract Rev.06 16
0199,1607; 00429665 84275
CITY OF ROUND ROCK APPROVED AS TO FORM:
By:
Laurie Hadley, City anager teAsn b. S s, City Attorney
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Date
Supplemental Contract Rev.06.16
0199.1607;00429665 84275
ADDENDUM TO EXHIBIT B
Engineering Services
1. PROJECT DESCRIPTION
Supplemental Contract No. 2 is being executed to amend previously specified services and/or to specify
additional services for the Contract. Except as modified by the Scope of Work herein below, the services
shown in Exhibit B of the Contract and those in the Addendum to Exhibit B in the subsequent
Supplemental Contract No. l shall remain a part of all services to be provided under the Contract.
2. SCOPE OF WORK
In Section 2. SCOPE OF WORK of the Addendum to Exhibit B attached to Supplemental Contract
No. 1 delete the following task title in its entirety:
• Task 3: Construction Plans and Bidding
and replace with the following task title:
• Task 3: Construction Plans
In Section 2. SCOPE OF WORK of the Addendum to Exhibit B attached to Supplemental Contract
No. 1 delete the following subsection title in its entirety:
2.1.3 Task 3: Construction Plans and Bidding
and replace with the following subsection title:
2.1.3 Task 3: Construction Plans
In Subsection 2.1.3 Task 3: Construction Plans of the Addendum to Exhibit B attached to
Supplemental Contract No. 1 delete the last paragraph in its entirety.
The scope of work for additional services under this Addendum to Exhibit B attached to Supplemental
Contract No. 2 includes but is not limited to the following tasks:
• Task 4: Additional Hydraulic Modeling
• Task 5: Alignment and other Construction Plan Revisions
• Task 6: Post -bid Services
2.1 Work Breakdown Structure Tasks and Description
2.1.1 Task 4: Additional Hydraulic Modeling
The Engineer will perform hydraulic analyses requested by the City: to evaluate various improvements
combinations and/or alternative alignments; to determine if terminating the Proposed 72" Storm Drain
(Supplemental Pipe A) approximately 140 feet north of the existing area inlet that is appurtenant to the
Page B-1 oft
City's existing parallel 72" pipe will adversely affect the desired project capacity; and, in the vicinity of
the existing barn structure between approximate stations 5+50 and 7+00, to determine if installation of a
short segment of 72" metal pipe within the Proposed Channel in lieu of construction of a retaining wall
will adversely affect the desired project capacity.
2.1.2 Task 5: Alignment and other Construction Plan Revisions
The Engineer shall revise the alignment of improvements and amend the Construction Plans as requested
by the City. Revisions may include but not be limited to the following:
• Removal of retaining wall and addition of short segment of 72" metal pipe along the Proposed Channel in
the vicinity of stations 5+50 to 7+00 if the aforementioned hydraulic analysis results are favorable
• Re -alignment of Evergreen Drive Culvert to avoid power pole
• Depiction of easements acquired by the City and revisions to the depictions as required
• Provisions for alternate pipe material for the Proposed 72" Storm Drain (Supplemental Pipe A)
• Adjustments of tree protection limits/locations necessary because of easement revisions
• Provisions for force (wastewater) main adjustment
• Re -configuration of the channel/berm to be constructed in conjunction with the Proposed 36" Storm Drain
2.1.3 Task 6: Post -bid Services
Subsequent to the City's bidding of the construction project associated with the Construction Plans, the
Engineer will provide Post -bid services upon written request by the City including but not limited to:
• Evaluation of the bidders and development of a recommendation to the City for award of a
construction contract
• Review of contractor submittals, including issuance of written responses that request clarification
and re -submittal by the contractor, or reconciles the submittals, as appropriate
• Attendance at pre -construction conference, including provision of engineering support during
conference
• Attendance at periodic progress meetings with the contractor; including provision of engineering
support during meetings
• Construction site visits to examine project conditions and/or progress; including provision of
engineering support during visits
• Review of Requests for Information (RFT's) by the contractor, including issuance of written
responses that requests clarification from the contractor and/or reconciles the BFI's
• Amend the Construction Plans to "as -built" conditions upon receipt of all mark-ups provided by
the contractor and/or the City; submit "as -built" plans to the City in PDF and CAD electronic
formats
3. KEY PERSONNEL
Delete Brian K. Reis, Project Manager in Table B-1 in Exhibit B of the Contract (as previously
substituted by the Addendum to Exhibit B attached to Supplemental Contract No. 1) and replace with
Travis Michel, P.E., Project Manager.
Page 8-2 of 2
ADDENDUM TO EXHIBIT C
Work Schedule
The Work Schedule for the Tasks described in Addendum to Exhibit B of Supplemental Contract
No. 2 is shown in the table below. Where Tasks shown in Exhibit C of the Contract and in the
Addendum to Exhibit C of Supplemental Contract No. I are inherently related to Tasks described
in Addendum to Exhibit B of Supplemental Contract No. 2 and, have neither commenced nor been
completed, the schedule shown in Exhibit C is extended and/or modified by the following table as
appropriate.
Oak Bluff/Greenfield Drainage Improvements
2017 2018 2019 2020
Dec J AlJJ J JJ J
Task 1:T=FFT]
Task 2: V I I I I# I I I I I I V I I I I I 1 I
Task 3: I I I I I f I I I I
Task 4: I I( I I I I I I I(! I l l I I f l!
Task 5: I f l f I I I I I I ! I I I I I I I I I
Task 6:
Subject to the approval of the Owner, the Work Schedule above is exclusive of, and may be
extended or revised due to, delays caused by inordinate time to receive necessary responses or
direction from the Owner when requested by the Engineer, or other reasons significantly affecting
the Work Schedule caused by parties beyond the control of the Engineer.
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City of Round Rock
JROUNO
ROCK Agenda Item Summary
Agenda Number:
Title: Consider executing Supplemental Contract No. 2 with Lockwood, Andrews &
Newnam, Inc. for the Oak Bluff/Greenfield Drainage Improvements Project.
Type: City Manager Item
Governing Body: City Manager Approval
Agenda Date: 8/30/2019
Dept Director: Michael Thane, Utilities & Environmental Services Director
Cost: $38,000.00
Indexes: 2014 Drainage Revenue Bonds
Attachments: SA No. 2.pdf
Department: Utilities and Environmental Services
Text of Legislative File CM -2019-0264
The City experienced flooding in the Oak Bluff Estates neighborhood in 2013 and 2015; and
the County has experienced similar flooding issues in the abutting Greenfields neighborhood.
The City and Williamson County executed an interlocal Agreement (ILA) in April 2016 to fund
engineering and surveying services to identify, analyze, and design improvements that, if
constructed, would reduce flooding frequency in the neighborhoods. Pursuant to the ILA, the
City retained Lockwood, Andrews & Newnam, Inc. (LAN) at a cost of $80,295 to perform the
services.
As engineering work progressed, it became clear that analysis of the drainage network and
identification of potential solutions were much more complex than anticipated. Due to the
complex nature, and the City and/or County at times seeking more detailed information from
LAN in order to make decisions regarding the feasibility and possibilities for implementing
solutions, changes and refinement of 2-D hydraulic analyses were required, and it became
clear that geotechnical, structural, additional surveying, and analysis confirmation services
would be necessary for final design. Therefore, Supplemental Contract No. 1 was executed in
November 2017 for these additional services, increasing the contract by $98,224, for a total of
$178,519.
In October 2018, the City and Williamson County executed a second ILA related to funding of
construction.
To accommodate property owner's issues, revisions to the design drawings were requested by
Cky of Round Rock Page t Pdnted on &29/2019
Agenda Item Summary Continued (CM -2019.0264)
the City; as well as additional analyses to ensure the revisions will be in keeping with the project
goals. Supplemental Contract No. 2 will provide for these revisions and additional analyses;
and will add construction phase services (subject to request) not provided for in the previous
contracts. Supplemental Contract No. 2 will increase the maximum payable under the contract
by $38,000, for a new total of $216,519.
Cost: $38,000
Source of Funds: 2014 Drainage Revenue Bonds
City olRoundRock Page 2 Printed on 6/29/2014