Construction Updates

If you have questions about any district construction projects, please contact Jeff Ohmart with MMWD's engineering Division at 415-945-1574 or johmart@marinwater.org.

2017 - 18



April - September 2018: San Anselmo Pipeline Replacement Project on Butterfield Road


MMWD will install new pipelines in various streets including Butterfield Road, Willow Way, Fairview Court, Rosemont Avenue, Arroyo Avenue, and Sir Francis Drake Boulevard in the Town of San Anselmo. For detour maps and additional information, click here.

5/22/18 Update: The contractor filled, pressure tested, disinfected, and bacteria tested the new mains placed on Rosemont, Willow and Fairview. All tests have passed and the contractor has been given the green light to transfer services to the new main. Services transfers will most likely begin Wednesday, May 23. Learn more. 

May - October 2018: Sausalito Fire Flow Improvement Project


MMWD will install new pipelines in various streets including Filbert Avenue, Spencer Avenue and San Carlos Avenue in the City of Sausalito. Learn more. 

March - July 2018: Los Ranchitos Fire Flow Improvement Project


MMWD will install new pipelines in various streets including Knoll Way, Oak View Drive and Ranch Road in the San Rafael community of Los Ranchitos. Learn more. 

September 2017 - October 2018: Tiburon Fire Flow Improvement Project


MMWD will install new pipeline on Trestle Glen Boulevard and Paradise Drive in the Town of Tiburon. The new water pipeline will replace leak-prone pipe installed as early as 1939 and supplies water to the Town of Tiburon and unincorporated Tiburon from the Alto water tanks, Spring Lane tank, and Ross Reservoir. This project will substantially improve fire flow capacity in the piping for this area. Learn more.


Recently Completed


March - May 2018: San Anselmo - Sleepy Hollow Pipeline Replacement Project


This month MMWD will install new pipeline in the Sleepy Hollow neighborhood of San Anselmo on Van Tassel Court and the intersection of Van Tassel Court and Irving Drive. The new pipeline will replace 70-year-old fire flow deficient pipeline, and will be better able to with stand an earthquake. Learn more. 

January - April 2018: Mill Valley Pipeline Replacement Project


MMWD is installing new pipeline on Stanford Avenue, Princeton Avenue, Cleveland Avenue and California Avenue in the Almonte Community. This project also includes the replacement of pipeline on Lomita Drive in the Alto Community. Both the Almonte and Alto Communities are located in unincorporated Mill Valley. The new water pipeline will replace leak-prone pipe installed as early as 1948 and will be better able to withstand an earthquake and improve fire flow capacity. Learn more. 

March - June 2018: Riviera Circle Pipeline Replacement Project in Larkspur


MMWD is installing new pipeline in various streets in in the City of Larkspur on Riviera Circle, Via La Brisa, Doherty Drive, and Lucky Drive. The new pipeline will be installed ahead of the City’s road reconstruction work, and replace 55-year-old fire flow deficient pipe. Learn more. 

September - March 2018: Larkspur and Corte Madera Pipeline Replacement Project


MMWD is installing new pipeline in various streets in Larkspur and Corte Madera including William Avenue, Pepper Avenue, Bayview Avenue, Alexander Avenue and Elm Avenue. This project will replace 80 to 90 year old leak-prone pipe and is being coordinated with upcoming paving projects in the City of Larkspur and Town of Corte Madera. Learn more. 

January - April 2018: San Anselmo Pipeline Replacement Project


MMWD is installing new pipeline in various streets in San Anselmo including Meadowcroft Drive, Morningside Drive, Brookside Drive, Stone Court and Brookside Court. This project will replace leak-prone pipe installed as early as 1928 and will be better able to withstand an earthquake and improve fire flow capacity. Learn more. 

November - January 2018: Eldridge Grade Fire Road


Due to landslide damage, Eldridge Grade Fire Road will be intermittently closed. Learn more.

August - December 2017: Bon Tempe North Intertie


MMWD is installing new piping and control valves at the intersection of Eldridge Grade, Fish Grade, Shaver Grade and Phoenix Lake Road to improve water reliability and movement between the northern and southern sections of MMWD's water system. Learn more.

August - December 2017: Mill Valley Pipeline Replacement Project


MMWD is installing new pipeline in Laverne Avenue in unincorporated Mill Valley. The new water pipeline will replace leak-prone 6-inch pipe installed in 1917. Learn more.
September - January 2017: Forest Knolls Pipeline Replacement and Fire Flow Improvement Project
MMWD is replacing more than a half mile of dated and worn cast iron pipeline in order to increase fire flow and seismic reliability in Forest Knolls, a community in unincorporated Marin County. Learn more.

September - January 2017: Hepburn Heights Pipeline Replacement Project


MMWD is replacing approximately 2,800 feet of dated and worn cast iron pipeline in the City of San Rafael. Learn more.

August - February 2017: Terra Linda Pipeline Replacement Project


MMWD is replacing approximately 6,440 feet of dated and worn cast iron pipeline in the community of Terra Linda, within the City of San Rafael. Learn more.