Capital Improvement Program


Your Neighborhood

Ross Valley Sanitary District was established in 1899. The RVSD service area includes Fairfax, San Anselmo, Ross, Larkspur, Bon Air, Sleepy Hollow, Kentfield, Kent Woodlands, Oak Manor and Greenbrae.

The RVSD infrastructure that we operate and maintain in your neighborhood includes a portion of the 200 miles of sewer pipelines and 19 pump stations which collect, pump and transport approximately 4 million gallons of wastewater per day to the Central Marin Sanitation Agency for treatment. Much of this infrastructure is old or outdated.

The Capital Improvement Program (CIP) consists of construction projects to replace outdated system infrastructure and enhance local wastewater system reliability and efficiency.

View the RVSD Program Brochure by clicking the link.


• Protect public health and the environment by reducing the risk of sewer overflows.

• Continue working with the community to replace the 75% of outdated sewer laterals that still remain.

Construction Projects

Since 2013, RVSD has been working to rehabilitate underground wastewater pipelines through a construction program that is spread out over more than 34 miles of road throughout Ross Valley. See the map below to view projects completed to date.

More information about the planning and construction of 2023 Capital Improvement Program (CIP) projects can be found below:

Click the map above to view the Current RVSD Infrastructure and Capital Improvements Projects map by clicking the link. After the map opens, click the "Open in Acrobat" box found in the upper right side of the map. From there you can view larger versions of each project area map by clicking on on it once.

View both current and completed CIP projects on an interactive map by clicking the linkYou can also go to the project pages listed on the left of this page for more information about individual CIP projects that are under construction or scheduled to begin soon.

As with any construction project, you can expect noise, dust, some traffic lane closures and detours, parking restrictions, travel delays, and in some cases night-time work near the work sites during construction activity. We work to ensure that mail and package delivery to construction areas is not interrupted and that local and emergency access is maintained at all times.
RVSD appreciates your patience as we fulfill our commitment to making strategic long-term infrastructure improvements!

Construction Project Updates

We appreciate your patience as we work to complete essential infrastructure improvements.
You can receive timely updates in multiple formats:

Email Administrative Staff to request being added to the project email list.

Call RVSD at 415-259-2949. Our office staff are available Monday - Friday from 7:30 a.m. to 4 p.m. We can assist you with emergency service 24 hours per day, seven days per week.