Marin Municipal Water District will begin work in September 2015 to replace over half a mile of aging pipe on Sequoia Valley Road and nearby streets in Mill Valley. The current pipe, installed in sections in 1917 and 1931, has had numerous leaks, making it a good candidate for replacement. Additionally, pipe from this period is unlined and over time the inside wall of the pipe develops “tuberculation,” which substantially reduces flow capacity.
This project is a scheduled component of the district’s Fire Flow Improvement Program. Welded steel pipe will be used due to its greater reliability in the event of an earthquake and its superior performance on steep slopes on roads such as Castle Rock Drive and Tourist Club Road.
The lowest responsible bid for this project was submitted by W.R. Forde Associates of Richmond in the amount of $494,410, well under the engineer’s estimate of $555,000. This project is estimated to be completed in December, 2015.
The cost of this project is funded by the Fire Flow Improvement Program. Funding for the district’s Fire Flow Improvement Program is provided by a $75 annual parcel fee. From 1997 through June 30, 2014 the fee has supported the investment of more than $86 million in fire flow and seismic-related improvements and the replacement of more than 76 miles of pipe throughout the district’s 147-square-mile service area.
This project aligns with the district’s five-year strategic plan to improve water supply resiliency and maintain facilities and equipment sufficiently. Customers with questions can contact Jeff Ohmart with MMWD’s Engineering Division at 415-945-1574 and reference the Sequoia Valley Road and Tourist Club Pipeline Replacement Project.
Media Contact: Emma Mahoney