Recently Completed Projects

Interactive Capital Improvement Program (CIP) Project Map

View completed CIP projects on an interactive mapYou can also go to the project pages listed on the left of this page for more information about other CIP projects that are under construction or scheduled to begin soon.

Butterfield/Arroyo-Kenrick Gravity Sewer Improvements Project

Completed: March 2022

Contractor: Ranger Pipelines, Inc.


Project Summary


The Butterfield/Arroyo-Kenrick Gravity Sewer Improvements Project installed 0.3 mi of diversion and replacement gravity sewer in San Anselmo between Arroyo Avenue and Kenrick Drive (on Butterfield Road) and replaced 0.3 mi of gravity sewer in Sleepy Hollow on lower Fawn Drive. The Butterfield section was the last capacity project required in the Cease and Desist Order from the Regional Water Quality Control Board, and the Fawn Drive section provides needed capacity and pipe replacement to prevent sanitary sewer overflows and reduce maintenance requirements.

Also included was 1,600 feet of new sewer line in the Butterfield Road right of way. Approximately 1,050 feet of sewer line in front yard easements were abandoned. Work on Fawn Drive replaced approximately 770 feet of sewer lines from Butterfield Road to #271 Fawn Drive.

Project Contact

Project Manager - Phil Benedetti

Call:  415-259-2949 x212

Click the photos below for a larger view of the project areas.

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Ross Creek Sewer Removal Project

Completed: October 2021

Contractor: Coastside Construction


Project Summary


The Ross Creek Sewer Removal Project removed an abandoned 21-inch diameter sewer from the creek bed of Ross Creek at the Shady Lane bridge. In order to minimize upstream erosion, natural rock features were used to create a sustainable riffle structure in place of the sewer (which was originally installed in 1926 and a replacement siphon was installed 7.5 feet below the streambed in Oct. 2019).

The abandoned sewer removal from the streambed provides a more natural-looking water feature as viewed from the Shady Lane bridge, as well as the environmental benefits of improving conditions for anadromous fish migration of the native steelhead trout population of the Corte Madera Creek watershed.

Project Contact

General Manager - Steve Moore

Call:  415-870-9764

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Laurel Grove Sewer Rehabilitation Project

Kentfield - Completed: December 2020


Project Information

Project Contact

General Manager - Steve Moore

Call:  415-870-9764

Laurel Grove Map_05.29.20

FY 19/20 Force Main Appurtenance Project

Kentfield - Completed: November 2020


Project Contact

General Manager - Steve Moore

Call:  415-870-9764

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FY 2016/17 Gravity Sewer Rehabilitation Projects

Fairfax, Larkspur, San Anselmo - Completed:  Winter 2020


Project Information

Project Contact

General Manager - Steve Moore

Call:  415-870-9764

FY 2016-17 GSR Location Maps and Status

Large Diameter Gravity Sewer Project II-3B

Lower Shady Lane/Poplar Avenue - Completed:  Winter 2020


Project Information

Project Contact

General Manager - Steve Moore

Call:  415-870-9764

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FY 2016/17 Gravity Sewer Improvements

San Anselmo (Butterfield) Improvements - Completed:  Winter 2020


Project Information

Project Contact

General Manager - Steve Moore

Call:  415-870-9764

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Kentfield Pump Station 15 Improvements

Completed:  December 2019


Project Information

Project Contact

General Manager - Steve Moore

Call:  415-870-9764

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Large Diameter Gravity Sewer Project II-3A

Ross Common/Upper Shady Lane - Completed:  Summer 2019


Project Information

Project Contact

General Manager - Steve Moore

Call:  415-870-9764

LagunitasRd_RossCommon_Map

FY 2016/17 Gravity Sewer Improvements

San Anselmo (Nokomis & Meadowcroft) Sewer Improvements - Completed: Summer 2019


Project Information

Project Contact

General Manager - Steve Moore

Call:  415-870-9764

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