CM-07-08-196STATE OF TEXAS
COUNTY OF WILLIAMSON
FIRM:
ADDRESS:
PROJECT:
SUPPLEMENTAL CONTRACT NO. 1
TO CONTRACT FOR ENGINEERING SERVICES
K. FRIESE & ASSOCIATES, INC. ("Engineer")
1120 South Capital of Texas Highway, The Setting III,
Suite 100, Austin, TX 78746
RM 1431 24 -INCH WATER LINE IMPROVEMENTS
This Supplemental Contract No. 1 to Contract for Engineering Services is made by and between
the City of Round Rock, Texas, hereinafter called the "City" and K Friese & Associates, Inc.
hereinafter called the "Engineer".
WHEREAS, the City and Engineer executed a Contract for Engineering Services, hereinafter
called the "Contract", on the 24th day of May, 2007 for the RM 1431 24 -Inch Water Line
Improvements Project in the amount of $59,675.00; 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 $11,452.00 to a total of $71,127.00; and
NOW THEREFORE, premises considered, the City and the Engineer agree that said Contract
is amended as follows:
I.
Article 2, Engineering Services and Exhibit B, Engineering Services shall be amended as set
forth in the attached Addendum To Exhibit B.
II.
Article 4, Compensation and Exhibit D, Fee Schedule shall be amended by increasing by
$11,452.00 the lump sum amount payable under the Contract for a total of $71,127.00, 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 Contract #1 Rev.07/06/06
120327.doc - 0199.7002 - WL04RM1431 84275
1
CAN- Ol-o15- (9(Q
K. FRIESE & ASSOCIATES, INC.
By:
Date
CITY OF ROUND ROCK A ' ' ROVED AS T I FORM:
By: i A
axwell, Mayor Steph n L. Sheets, City Attorney
5-� -07
Date
Supplemental Contract #1
120327.doc - 0199.7002 - WL04RM1431
2
Rev.07/06/06
84275
ADDENDUM TO EXHIBIT B
Engineering Services
The changes to the scope of this project are as follows:
GENERAL
The Cedar Park -Round Rock Interconnect project is located along RM 1431 both east and west
of the intersection with CR 175. The project consists of approximately 7,000 linear feet of
waterline connecting Cedar Park's and Round Rock's water systems. The project also includes a
meter and flow control valve as well as vaults and piping for a future meter and flow control
valve. This interconnect will provide an alternate source of water to the City of Cedar Park
during design and construction of the Brushy Creek Regional Utility Authority Regional Water
System. In the future, this water line will be Round Rock's connection to the Brushy Creek
Regional Utility Authority's system. K Friese & Associates, Inc. (KFA) has completed 50%
plans and technical specifications for the water line.
The water line was initially proposed to be 24 -inches in diameter. During the course of design, it
was recognized that under future flow conditions, when the City of Round Rock is receiving
water from the BCRUA system, velocity in the 24 -inch line would be significantly greater than
typical design criteria. This request for additional services is to re -design the project using 36 -
inch diameter pipe and valves.
SCOPE OF SERVICES
1. Easement Acquisition Support — In order to support construction of the larger pipe and
appurtenances, the temporary construction easement has been widened from 20 feet to 50
feet. This change requires the revision of two sets of field notes and sketches. Please
note that the field notes and sketches were prepared early in the design process to
expedite easement acquisition. This was due to the shortened construction timeline to
provide the City of Cedar Park with an emergency interconnect by summer 2008.
2. Design of the line — The increase in pipe and valve diameter requires a more complex
flow control valve vault design. Additionally, vaults for the 36 -inch diameter valve
operators are being added. The plan sheets will be revised to show the larger pipe and
valve diameters, the butterfly valve details, and vaults for the larger diameter valves.
3. SCADA Review — The original concept included SCADA equipment located at the vault
on the north side of RM 1431. Changes to the project require more complicated design
with SCADA radio equipment in two separate locations with relay and antennas.
Therefore, KFA contracted with James R. Schultz & Associates to review and assist in
the SCADA design.
The changes to the Fee Schedule for this project are as follows:
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Additional Services - 8/10/07
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36 -inch Line Design
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CANN- 01-0% l0l (4,
DATE: August 20, 2007
SUBJECT: City Manager Approval - August 24, 2007
ITEM: Authorize the City Manager to execute Supplemental Contract No. 1 to
the Professional Services Contract with K. Friese & Associates, Inc.
for the RM 1431 24 -Inch Water Line Improvements Project.
Department: Water and Wastewater Utilities
Staff Person: Michael D. Thane, Director of Utilities
Justification:
This Supplemental Contract No. 1 is for services required to re -design this water line from a
24 -inch to a 36 -inch diameter line. During the course of design, it was recognized that
under ultimate design flows, when the City is receiving water from the BCRUA system,
velocities in the 24 -inch water line would be 19.7 feet per second (fps), which is significantly
greater than typical design criteria. A 36 -inch ductile iron pipe or steel pipe water line
under the same ultimate design flows will have a velocity of 8.7 fps, which is a little high,
but acceptable. Other services included under this Supplemental Contract No. 1 are
revisions to the survey documents, additional complexity of the flow control valve, and vault
design. The total contract amount, including Supplemental Contract No. 1, will be
$71,127.00.
Funding:
Cost: $11,452.00
Source of funds: Capital Project Funds (Self -Financed Utility)
Outside Resources: K. Friese & Associates, Inc.
Background Information:
This project is identified in our current (2004) Water Master Plan to be completed by 2020.
However, now that Lake Travis has become the future water supply, this line will need to be
completed by 2014. In addition, per an Interim Water Supply Agreement with Cedar Park,
the City is required to deliver Cedar Park 4 mgd of potable water by the summer of 2009.
This line as well as two other future City of Round Rock water improvement projects is
required to be constructed earlier than identified in the master plan, in order to meet the
requirements of the Interim Water Supply Agreement. One is a 2 million gallon Elevated
Water Storage Tank and the other is a 7.5 mgd High Service Pump at our Water Treatment
Plant. In consideration for the City of Round Rock completing this project sooner than was
planned, the City of Cedar Park will pay the City of Round Rock a lump sum of $1,000,000.
Public Comment: N/A
Blue Sheet Format
Updated 01/20/04