Region 9: Risk Mapping, Assessment and Planning (Risk MAP)

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Risk Mapping, Assessment and Planning (Risk MAP)

The vision for Risk MAP is to deliver quality data that increases public awareness and leads to action that reduces risk to life and property.

The Region 9 Risk MAP page is dedicated to provide news and updates of new flood studies/mapping projects specifically in Arizona, California, Hawaii/Pacific Islands, and Nevada.

Preliminary Flood Insurance Rate Map News Releases

FEMA Releases Preliminary Flood Hazard Information for Ventura County

FEMA Releases Preliminary Flood Hazard Information for Modoc County

FEMA Releases Preliminary Flood Hazard Information for San Bernardino County

To view your Preliminary Map

California Coastal Anaylsis and Mapping Project (CCAMP)

Region9 initiated flood studies/mapping projects in coastal areas as a result of Congressional appropriations for Flood Hazard Mapping under Risk MAP . These efforts will address gaps in required engineering and mapping for high flood risk areas impacted by coastal flooding. Cumulatively, these flood studies/mapping projects are being referred to as the California Coastal Analysis and Mapping Project (CCAMP).

Open Pacific Coastal Study

For theOpen Pacific CoastalStudy,the Federal Emergency Management Agency (FEMA) is remapping the coastal flood risk and wave hazards for the following fifteen California counties:
Coastal Mapping• Del Norte
• Humboldt
• Mendocino
• Sonoma
• Marin
• San Francisco
• San Mateo
• Santa Cruz
• Monterey
• San Luis Obispo
• Santa Barbara
• Ventura
• Los Angeles
• Orange
• San Diego

FEMA’s coastal mapping efforts benefit from new technologies and coastal data contributed by a consortium of Federal and State agencies, academic institutions, and private sector consultants. The OPC Study will be based on new high-resolution bathymetric and topographic data for the entire California coast acquired from the California Ocean Protection Council and National Oceanic and Atmospheric Administration (NOAA).

San Francisco Bay Area Study

For the San Francisco Bay Area Study, the Federal Emergency Management Agency (FEMA) is performing detailed coastal engineering analyses and mapping of the San Francisco Bay shorelinefor these nine counties:
Bay Area map• Marin
• Sonoma
• Napa
• Solano
• Contra Costa
• Alameda
• Santa Clara
• San Mateo
• San Francisco
The San Francisco Bay Area Coastal Study includes both regional hydrodynamic and wave modeling of the San Francisco Bay, as well as detailed onshore coastal analysis used to estimate wave runup and overtopping, as well as overland wave propagation. These onshore analyses will form the basis for potential revisions to the Base Flood Elevations (BFEs) and Special Flood Hazard Areas (SFHAs) within the coastal areas.
The new coastal study will revise and update the flood and wave data based on current conditions within the coastal Flood Insurance Study reports and Flood Insurance Rate Maps for each of the nine counties. The study is progressing on a county-by-county schedule. FEMA’s coastal study and mapping efforts benefit from new technologies and coastal data, including the latest 2010 detailed topographic data collected by the USGS and NOAA. Studies by other entities, such as the US Army Corps of Engineers (USACE), will be evaluated for compatibility with FEMA’s study and mapping goals.
Informative Links:
Coastal Flood Risk Study Process
Last Updated: 
02/26/2015 - 13:45
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