- Home
- Government
- Departments
- Public Works
- Flooding and Storm Resources
Flooding and Storm Resources
San Anselmo and Sleepy Hollow Creeks periodically flood. This natural process, caused by the clay soils, topography and climate of the Ross Valley has been exacerbated by human development; undersized bridges and building span the creek, railroad berms across the floodplain, and increased impervious surface throughout the watershed. These are the Town's key messages and flood-related information links.
Current Flood Projects
Know Your Risk:
- Flood risk is described by FEMA maps
- Insure according to your risk
Build Responsibly:
- Get an Elevation Certificate
- All construction projects must meet flood protection and water quality rules
- Keep drainage-ways clear
- Limit impervious surfaces
You live in a watershed:
- Protect the Creek
- Flooding is Natural and Historical
- Preserve and restore natural floodplain function
Stay Informed:
- Of approaching storms
- About Regional Flood Control Activities
- About Local Flood Control
Stay Safe:
- Be Prepared
- Don’t Drive Through Floodwaters
- Turn Around –Don’t Drown
- Clean Up After Floods
- After Flood Fact Sheet
Floodwaters Carry Contaminants, Prevent Mildew