The Richardson Bay watershed links together the communities of:
- Mill Valley
- Marin City
- Tamalpais Valley
Flood Zone 3 and Flood Zone 4
The watershed includes two Flood Control Zones within it's boundaries:
- Zone 3: Richardson Bay
- Zone 4: Bel Aire
The Zone has an advisory board appointed by the District Board that reviews projects and how funds are spent. Their meetings are open to the public.
Learn about projects and find documents in the Flood Zone 3 and Flood Zone 4 pages.