Welcome to the North Bay Watershed Association

The North Bay Watershed Association is a group of diverse regional and local public agencies throughout the North Bay region working to craft regional approaches to managing our common watershed.

Association members work cooperatively on water resources issues and go beyond traditional boundaries to promote good stewardship of the North Bay watersheds – watersheds that drain 850 square miles of eastern Marin County, Sonoma County, southern Napa county, and portions of Solano County.

If you would like more information about the NBWA, see our brochure here or contact us.


Stay up to date with the NBWA by reading our latest newsletter.


Next NBWA Board Meeting

November 3rd, 2017

Novato City Hall

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Announcements and News

Estuary News: High Road for the Wettest Highway?

A story about future options for solving the traffic congestion, flooding, sea level rise, and habitat management challenges confronting North Bay’s Highway 37.

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Featured Conference

State of the Estuary Conference

October 10 – 11, 2017

The State of the Estuary Conference showcases the latest information about the estuary’s changing watersheds, impacts from major stressors, recovery programs for species and habitats, and emerging challenges.

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NBWA Brochure

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