HomeMy WebLinkAboutItem 11k - Accept Water Main Replacement ProjectAccept Water Main Replacement Project
November 17, 2020
Page 1 of 3
DATE: November 17, 2020
TO: Honorable Mayor and City Council
FROM: Tom Tait, Public Works Services Director
By: Tiffany Lee, P.E. Associate Civil Engineer
SUBJECT: ACCEPT ALL WORK PERFORMED BY CEDRO CONSTRUCTION, INC.
FOR THE WATER MAIN REPLACEMENT PROJECT AS COMPLETE
Recommendation: Approve
SUMMARY
On January 21, 2020, the City Council approved a contract with Cedro Construction, Inc.
in the amount of $558,434 for the Water Main Replacement Project along Camino Real
Avenue. The terms and conditions of this project have been complied with and the work
has been performed to the satisfaction of the Project Manager for a total project cost of
$490,356. This amount reflects the original contract amount of $558,434, minus quantity
changes totaling $68,078, or 12.2% less than the original contract amount.
It is recommended that the City Council accept all work performed by Cedro Construction,
Inc. for the Water Main Replacement Project as complete, and authorize the final payment
to be made in accordance with the contract documents, subject to the retention of
$24,517.80.
BACKGROUND
The two 6-inch cast iron water mains along Camino Real Avenue were installed in 1941.
In recent years, Public Works Services maintenance crews have made several
emergency repairs to the water main along Camino Real Avenue between Sixth Avenue
and Eighth Avenue. The reason for frequently needed repairs to the water main is due to
the age and material of the pipe.
Cast iron was a common pipe material used for municipal water mains due to its strength
and corrosion resistance; unfortunately, as it ages, it becomes brittle and susceptible to
leaks, limiting its durability and reliability. Pressure fluctuations combined with minor
geological movement and settlement can cause cast iron pipe to break. Ductile iron,
which replaced cast-iron as the industry standard for water pipe, has the corrosion
resistance and strength characteristics of cast iron, but can tolerate movement or
Accept Water Main Replacement Project
November 17, 2020
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deflection without breaking. The Water Main Replacement Project along Camino Real
Avenue would replace the cast iron water mains with new ductile iron water mains to
improve reliability of the water distribution system.
DISCUSSION
On January 21, 2020, the City Council approved a contract with Cedro Construction, Inc.
for the Water Main Replacement Project. The work performed included replacing two 6-
inch water mains with two 10-inch ductile iron water mains. During the course of work,
the City received credits for reduction in quantities of several bid items. Below is a
breakdown of the contract change orders.
CCO Description Amount
1. Deleted (12 LF) - Installation of 6” Ductile Iron Pipe ($4,056)
2. Deleted (37 LF) - Installation of 8” Ductile Iron Pipe ($6,808)
3. Deleted (202 LF) - Installation of 10” Ductile Iron Pipe ($26,260)
4. Deleted (3,896 SF) - Asphalt Pavement ($13,576)
5. Deleted (176 LF) – Remove and Dispose Existing Pipes within Pipe Zone Area ($1,721)
6. Deleted (3 EA) – Temporary Water Services Connection ($15,657)
Total: ($68,078)
The change orders listed reduced the overall contract amount by $68,078, or 12.2% less
than the original contract amount. All the terms and conditions of this contract have been
complied with and the work has been performed to the satisfaction of the Project
Manager. Cedro Construction, Inc. completed the work as defined in the project plans
and specifications in an efficient and timely manner. Photographs of the Water Main
Replacement Project are shown on Exhibit “A”.
FISCAL IMPACT
Funds in the amount of $700,000 have been budgeted in the Fiscal Year 2019-20 Capital
Improvement Program for the Water Main Replacement Project. The total cost for this
Project is $490,356. This amount reflects the original contract amount of $558,434 minus
contract changes totaling $68,078, or 12.2% less than the original contract amount.
Accept Water Main Replacement Project
November 17, 2020
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RECOMMENDATION
It is recommended that the City Council accept all work performed by Cedro Construction,
Inc. for the Water Main Replacement Project as complete; and authorize the final payment
to be made in accordance with the contract documents, subject to retention of
$24,517.80.
Attachment: Exhibit “A” – Photographs of the Water Main Replacement Project
EXHIBIT “A”
Water Main Replacement Project Photos
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EXHIBIT “A”
Water Main Replacement Project Photos
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