FEMA publishes the official flood maps of San Anselmo, which delineate the spatial and vertical extent of the Base Flood, or 100-year flood.

FEMA also administers the National Flood Insurance Program. The following links have more information about the NFIP:

• How Flood Insurance Works
• FEMA's Flood Insurance webpage
• National Flood Insurance - Summary of Coverage
• April 1 2015 - Flood Insurance Changes Fact Sheet
• Homeowner Flood Insurance Affordability Act 2014
• What to do after a Flood
• Filing your Flood Insurance Claim
• Floodsmart.gov
• NFIP Information for Realtors

The following links provide ways of viewing the most current flood maps and determining if your building is subject to the special requirements of the flood zone:

• MarinMap Flood Map Viewer
• FEMA Map Index
• FEMA Information on Flood Study

Flood insurance rates are adjusted based upon a building's elevation above the Base Flood, therefore elevation certificates are important as a means of collecting and certifying this information. San Anselmo collects elevation certificates through permitting and makes them available to the public.

• More Information about Elevation Certificates
• Elevation Certificates on Record

Inundation Maps

The following links were developed by the Ross Valley Flood Control Program and show simulated inundation areas at increasing flood recurrence intervals. For more information about recurrence intervals visit this page.

5 year recurrence interval:

http://www.marinwatersheds.org/documents/Plate3-1_RossValleyEcon_5yr.pdf

10 year:

http://www.marinwatersheds.org/documents/Plate3-2_RossValleyEcon_10yr.pdf

25 year:

http://www.marinwatersheds.org/documents/Plate3-3_RossValleyEcon_25yr.pdf

50 year:

http://www.marinwatersheds.org/documents/Plate3-4_RossValleyEcon_50yr.pdf

100 year:

http://www.marinwatersheds.org/documents/Plate3-5_RossValleyEcon_100yr.pdf

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