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TO: HONORABLE MAYOR AND MEMBERS OF THE CITY COUNCIL
FROM: DIRECTOR OF PUBLIC WORKS
DATE: APRIL 5, 2005
SUBJECT: STORM DRAIN REHABILITATION
STAFF COORDINATOR: Ron Dragoo, Senior Engineer
The recently completed Master Plan for Storm Drains identified a number of storm drain deficiencies. As presented discussed in a June 2004 report to the City Council the deficiencies can be categorized into four types:
The June 2004 report recommended a program of storm drain lining for those deficiencies related to pipe deterioration. The adopted budget includes funding in the amount of $500,000 for storm drain lining.
Sealed bids were received and opened at 11:00am March 23, 2005. Sancon Technologies, Inc. submitted the lowest responsible and responsive bid of the four received. The following table summarizes bids:
The bids were reviewed for consistency with bid requirements. References were contacted and reported satisfactory or above performance on similar projects. The low bidder is satisfied with his bid and is ready to go to work. The relatively small (0.9%) difference between the Engineer’s Estimate and the low bid is within an acceptable range for Public Works construction projects.
This project will repair, by lining, eleven corrugated metal storm drain lines in the City. Many of the storm drain lines are missing sections of the invert (bottom) of the pipes. It is common to encounter areas where running water has removed soil beneath the pipe that must be repaired prior to lining the pipe. Although all the lines included in this project have been video taped and inspected for these types of defects, staff is anticipating that some areas will require additional/extra work that has not been identified in the scope of this project. Staff is requesting a construction contingency of $67,000 (20%) that would be used in the event of changed construction conditions require additional work.
Construction inspection services are needed for this project and an on-call service provider, Charles Abbott Associates, can provide this service for the City. The City has recently used Charles Abbott Associates to provide inspection services for the emergency work that was performed at Western and Delasonde. Staff is satisfied with the work performed by Charles Abbott Associates. Staff recommends that Council authorize the Mayor and City Clerk to execute a contract with Charles Abbott Associates for the City of Rancho Palos Verdes Storm Drain Rehabilitation Project.
Funds for this project have been set aside through the Storm Drain Lining Program, Project Number 002105.
Adopting staff’s recommendations will result in approving the Plans and Specifications for the construction of the Storm Drain Rehabilitation Project, awarding a construction contract to Sancon Technologies, Inc., awarding a contract for professional services to Charles Abbott Associates, and authorizing the Mayor and City Clerk to execute those contracts.
The adopted FY 04-05 Budget includes adequate funding for this project in the Capital Improvement Program Fund.
Dean E. Allison
Director of Public Works