Accept Water Main Replacement Project
March 1, 2022
DATE: March 1, 2022
TO: Honorable Mayor and City Council
FROM: Paul Cranmer, Public Works Services Director
By: Tiffany Lee, P.E. Senior Civil Engineer
SUBJECT: ACCEPT ALL WORK PERFORMED BY CEDRO CONSTRUCTION, INC.
FOR THE WATER MAIN REPLACEMENT PROJECT AS COMPLETE
Recommendation: Approve
SUMMARY
On July 6, 2021, the City Council approved a contract with Cedro Construction, Inc. in the amount of $599,424 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 $549,210.
This amount reflects the original contract amount of $599,424, minus quantity changes totaling $50,214, or 8.4% 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 $27,460.50.
BACKGROUND
The two 6-inch cast iron water mains along Camino Real Avenue were installed in 1941.
In recent years, Public Works Services Department maintenance crews have made several emergency repairs to the water main along Camino Real Avenue between Eighth Avenue and Tenth 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
March 1, 2022
deflection without breaking. The Water Main Replacement Project along Camino Real Avenue will replace the cast iron water mains with new ductile iron water mains to improve reliability of the water distribution system.
DISCUSSION
On July 6, 2021, 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. Added (8 LF) - Installation of 6” Ductile Iron Pipe $3,032
2. Added (3 LF) - Installation of 8” Ductile Iron Pipe $900
3. Deleted (114 LF) - Installation of 10” Ductile Iron Pipe ($16,188)
4. Deleted (5,465 SF) - Asphalt Pavement ($32,790)
5. Deleted (113 LF) – Remove and Dispose Existing Pipes within Pipe Zone Area ($678)
6. Deleted (1 EA) – Water Service Installation and Temporary Water Services Connection ($4,490)
Total: ($50,214)
The change orders listed reduced the overall contract amount by $50,214, or 8.4% 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 $800,000 have been budgeted in the Fiscal Year 2020-21 Capital Improvement Program for the Water Main Replacement Project. The total cost for this Project is $549,210. This amount reflects the original contract amount of $599,424 minus contract changes totaling $50,214, or 8.4% less than the original contract amount.
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
Accept Water Main Replacement Project
March 1, 2022
to be made in accordance with the contract documents, subject to retention in the amount of $27,460.50.
Attachment: Exhibit “A” – Photographs of the Water Main Replacement Project
EXHIBIT “A”
Water Main Replacement Project Photos
1 EXHIBIT “A”
Water Main Replacement Project Photos
2