Zone 9 projects and maintenance

Aerial view of the current state of progress at the Sunnyside Flood Detention Basin Project, showing construction vehicles on a large area of dirt.

Progress update on Sunnyside Flood Detention Basin Project

Posted on November 21, 2022

Work is progressing nicely with the detention basin at the former Sunnyside Nursery, located at 3000 Sir Francis Drake Boulevard. It is nearing completion and it will be operational this rainy season. Once completed, the detention basin will hold stormwater overflows from Fairfax Creek during peak storm events by having water spill over a side...

Corte Madera Creek Flood Risk Management Project update, March 2022

Posted on March 16, 2022

On March 15, 2022 the Board approved the construction plans and authorized bidding to begin for the first portion of the Corte Madera Creek Flood Risk Management Project. This includes the new stormwater pump station and new vehicular maintenance access ramp in the Granton Park neighborhood. The plans and specifications are available to view through...

Marin County Board adopts 2021-22 Zone 9 Storm Drainage Fee Update Report

Posted on July 13, 2021

At the July 27, 2021 Flood Control & Water Conservation District Board of Supervisors meeting, the Board adopted the 2021-22 Zone 9 Storm Drainage Fee Update Report. Resources July 27, 2021 meeting details 2021-22 Zone 9 Storm Drainage Fee Update Report

Sunnyside basin during construction phase

Final Phase of Stormwater Basin to Begin

Posted on July 12, 2021

Development part of larger flood mitigation and public safety project near Fairfax The final phase of the Marin County Flood Control and Water Conservation District’s Sunnyside Flood Detention Basin project is expected to begin in August with a goal of improving public safety for properties along Fairfax Creek and San Anselmo Creek in the upper Ross...

Corte Madera Creek Flood Risk Management Project update, June 2021

Posted on June 1, 2021

In response to public comments on the draft environmental impact report, including a Town of Ross survey and letter from the Town of Ross indicating strong local preference for Alternative 1, the District staff will recommend adoption of Alternative 1 instead of the proposed project. Alternative 1 will not include modifications to Frederick Allen Park....

Flood mitigation project milestone and delay

Posted on January 20, 2021

Final phase of stormwater basin moving forward despite bridge project issue The Marin County Flood Control and Water Conservation District is wrapping up plans for the final phase of the Sunnyside Stormwater Detention Basin and the project is expected to open for contractor bids this summer. The basin, located at 3000 Sir Francis Drake Boulevard...

San Anselmo Flood Risk Reduction Project update, November 2020

Posted on November 1, 2020

The first part of the Sunnyside Detention Basin construction was completed ahead of schedule in mid-November. Work included demolition of all the existing buildings and structures, stripping and stockpiling gravel and topsoil to be re-used at the site, and excavation and off-haul of approximately 20,000 cubic yards of earth. The site was covered with mulch...

vacant residential and former nursery structures

San Anselmo flood project construction to begin

Posted on August 19, 2020

Excavation of the Fairfax flood control basin set to start in September The Marin County Flood Control and Water Conservation District will begin excavating Sunnyside Basin near Fairfax in early September as part of the San Anselmo Flood Risk Reduction Project. The excavation and relocation of 20,000 cubic yards of earth is expected to take...

Corte Madera Creek Flood Risk Mangement Project Architectual Rendering

Corte Madera Creek Flood Risk Management Project Update, October 2019

Posted on October 31, 2019

As reported previously, the Corte Madera Creek Flood Risk Management Project scope and timeline has shifted away from one led by the U.S. Army Corps of Engineers (USACE) to a locally managed and funded effort overseen by the Marin County Flood Control & Water Conservation District (District), in partnership with the Town of Ross, the...

Corte Madera Creek Environmental Impact Statement and Environmental Impact Report comment period closes

Posted on November 27, 2018

The 45-day formal public comment period on the Corte Madera Creek Flood Risk Management Project Draft Environmental Impact Statement/Environmental Impact Report (EIS/EIR) closed November 27, 2018. To learn more about how to provide effective input and comments on the Draft EIS/EIR: Visit the project webpage Attend a future meeting Resources Corte Madera Creek Draft EIR...

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