FROM: James D. Herberg, General Manager
Originator: Kathy Millea, Director of Engineering
SUBJECT:
title
FAIRVIEW TRUNK SEWER REHABILITATION, PROJECT NO. 6-20
end
GENERAL MANAGER'S RECOMMENDATION
recommendation
RECOMMENDATION:
A. Approve a Professional Design Services Agreement with Dudek to provide engineering services for Fairview Trunk Rehabilitation, Project No. 6-20, for an amount not to exceed $1,200,000; and
B. Approve a contingency of $120,000 (10%).
body
BACKGROUND
The Fairview Trunk was built in the early 1950s in Fairview Road in the vicinity of the Orange County Fairgrounds in the City of Costa Mesa from Newport Blvd. to Baker Street. Orange County Sanitation District's (OC San) Asset Management Program has identified deterioration over time in this system of vitrified clay pipe and associated manholes.
RELEVANT STANDARDS
* California Government Code ?4526: Select the "best qualified firm" and "negotiate fair and equitable fees"
* Protect OC San assets
PROBLEM
An inspection of the Fairview Trunk revealed cracks and fractures in the pipe that have deteriorated over time. In addition, some of the manholes require rehabilitation or replacement and there is also an opportunity to abandon some manholes that are no longer needed for maintenance.
PROPOSED SOLUTION
Approve a Professional Design Services Agreement for Fairview Trunk Rehabilitation, Project No. 6-20. This project will rehabilitate approximately 9,500 feet of 12-inch to 27-inch sewer pipe and associated manholes between the Paularino Channel to the north and Newport Boulevard to the south in the City of Costa Mesa. Some manholes may be replaced, and others abandoned. The project will require careful coordination with neighbors, businesses, and schools to minimize public impacts.
TIMING CONCERNS
Delaying the approval of this design agreement would delay completion of the project, which would increase the risk that a failure might occur before the work...
Click here for full text