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CCAMP: Open Pacific Coast Study

The Federal Emergency Management Agency (FEMA) is performing  detailed coastal engineering analysis and mapping of the Pacific coast of California in accordance with FEMA’s February 2005 Pacific guidelines for new coastal studies which are included in Appendix D of the Guidelines and Specifications for Flood Hazard Mapping Partners.  Results from the OPC Study will be used to remap the coastal flood risk and wave hazards for the following fifteen California counties:brochure inset_opc.jpg

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). 

A series of kick-off meetings were conducted in all fifteen coastal counties to initiate the Discovery process.   The goal of the Discovery process is to work closely with communities to better understand the local flood risk and mitigation efforts, and to encourage and support actions taken to increase resilience to flooding. The final kick-off meeting took place in Orange County in January 2012, with a web-based meeting held on January 26, 2012 for community stakeholders who were not able to participate in person.  Another webinar was held on June 6, 2012 to introduce the OPC Study to interested Federal, state, regional, and local entities, as well as non-profit and private sector organizations.

To stay up the date with the OPC Study, sign up for our quarterly bulletin, Coastal Beat that will include schedule updates, technical articles and facts of interest, as well as relevant information as the study progresses.

To download the OPC brochure, click here.

To download the OPC Frequently Asked Questions, click here.

To download the CCAMP Townhall presentation from the 2012 Floodplain Management Association, click here

To download the Outreach for Coastal Communities webinar presentation from November 2012, click here.

To download the Open Pacific Coast Study Coastal Analysis Update webinar presentation from February 2013, click here.

To download the Advantages for Coastal Communities Participating in FEMA’s CRS Program webinar presentation from October 2013, click here.

To download the Coastal Analysis Results to Mapping webinar presentation from July 2015, click here.

To download the Flood Risk Products webinar presentation from June 2016, click here.


  • FEMA increases community access to draft floodplain mapping data

    At the request of several San Francisco Bay Area communities, FEMA is providing access to draft Flood Insurance Rate Maps (FIRM) (a.k.a. work maps) through the FEMA online GeoPlatform. FEMA’s GeoPlatform is an ArcGIS online mapping application that makes it easy to share data seamlessly across the internet.  After the Flood Risk Review meeting, the draft floodplain maps are uploaded to the GeoPlatform where communities can continue to access the draft work map data, and use it as “best available information” until the Preliminary Flood Insurance Rate Maps are officially released.

  • Coastal Storm History in San Diego County

    The 20th century  legacy of severe Pacific winter storms that caused coastal damages throughout the century, including beach/bluff erosion, seawall damages, and flooding from wave overtopping have been  well-documented in reports of the National Research Council (1984), Gary Griggs (et al. 2005), and others.  This coastal storm history is too often forgotten when facing new threats. When that history should serve as a stark reminder that extreme coastal flood events are a fact of life along the southern California coast.  This article discusses storm damages during the 1982-83 and 1997-98 El Niño winters in San Diego County, and provides a reminder of the high damage risk that the oceanfront built environments can expect to experience in any given year.

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