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 Region IX Map Navigator

 
 

 Preliminary Map Products

 
  • The Federal Emergency Management Agency (FEMA) is working with State agencies, regional entities, tribes, and communities to update the flood hazard risk information and produce new digital Flood Insurance Rate Maps (FIRMs).  Per FEMA’s new Expanded Appeals Process,  studies and Physical Map Revisions (PMRs) for which Proposed Flood Elevation Determination Notices have yet to be published in the Federal Register and those for which preliminary FIRMs and Flood Insurance Study (FIS) reports will be issued on or after December 1, 2011, will be posted to county-specific pages on this site.  Studies processed using the appeal initiation process in effect prior to December 1, 2011, will not be restarted.  To reference studies that are already effective, please visit the Map Service Center.

    To determine the status of Preliminary Map products and location of Revised Flood Hazard Maps for California counties interested parties should:
     
    • Click on the county name from the Counties listed in the left column of this page to view preliminary FIRMs or Letters of Map Revision (LOMR), where applicable. 
    • Visit the Community Map Repository in the community of interest to view paper copies of the FIRMs and the accompanying FIS reports.  The Community Map Repository is the local office in a participating community where the NFIP flood hazard maps, FIS reports, and related products (e.g., Letters of Map Change) are kept for local use and viewing by citizens.  The addresses of the Community Map Repositories are provided on the FIRM indexes; you may also obtain information on the Community Map Repositories by contacting the FEMA Map Information Exchange (FMIX), toll free, at 1-877-FEMA MAP (1-877-336-2627).

     

     

     CA Projects

     
    San Francisco Bay Coastal Study

    Study Type: Physical Map Revision
    County: Alameda
    State: California
    Description:
    BakerAECOM is performing coastal engineering analyses and completing new detailed analyses of the Central Bay of San Francisco Bay and will review the North Bay coastal analyses and mapping, in total encompassing all or a portion of the bay shoreline areas within eight counties: Marin, Sonoma, Napa, Solano, Contra Costa, Alameda, San Mateo and San Francisco Counties.


    Alameda County Provisionally Accredited Levees

    Study Type: Physical Map Revision
    County: Alameda
    State: California
    Description:
    BakerAECOM is performing riverine engineering analysis and levee analyses to map the area landward of the levee along Sulphur, Alameda, Coyote, and Agua Fria Creeks depicted as provisionally accredited on the August 3, 2009, effective countywide digital Flood Insurance Rate Map (FIRM) for Alameda County.  The Federal Emergency Management Agency (FEMA) will not issue a determination letter finalizing the new FIRM panels for Alameda County and incorporated areas until updated analyses that meet FEMA guidelines area available.  Additionally, FEMA studies for mapping flood hazards behind levee systems that cannot be recognized as providing protection from the base (1-percent-annual-chance) flood will not be finalized until the new set of guidelines for mapping flood hazards behind non-accredited levees are developed.


    Sutter Creek Study

    Study Type: Physical Map Revision
    County: Amador
    State: California
    Description:
    BakerAECOM is performing riverine engineering analysis for Amador County.


    Calaveras County Physical Map Revision

    Study Type: Physical Map Revision
    County: Calaveras
    State: California
    Description:
    BakerAECOM is performing riverine engineering analysis for Calaveras County. The Calaveras County Ongoing Work Map reflects the locations of the Federal Emergency Management Agency (FEMA) funded flood studies and mapping efforts, as well as data acquisition in Calaveras County. FEMA has contracted the U.S Geological Survey (USGS) to obtain high resolution topographic data (LiDAR) for approximately two-thirds of the County in support of new analyses.  Additionally, FEMA’s mapping contractor, BakerAECOM, and the California Department of Water Resources (DWR) are conducting new flood studies in various locations throughout the County. For questions regarding the BakerAECOM study reaches, please contact Glenn Wright at glenn.wright@aecom.com. For questions regarding the DWR study reaches, please contact Rummy Sandhu at ssandhu@water.ca.gov.
     

    March 9, 2012 – FEMA Region 9 staff attended a public meeting in the City of West Point. The Middle Fork Mokelumme River and Lynn Acre Park map was developed to facilitate discussion regarding the Special Flood Hazard Area (SFHA) as depicted along the Middle Fork of the Mokelumne River from the December 17, 2010 Flood Insurance Rate Map (FIRM). This map depicts an overlay of parcel information and the SFHA. For questions, contact Keith Loudin via email at lowell.loudin@fema.dhs.gov



    Colusa County Physical Map Revision

    Study Type: Countywide
    County: Colusa
    State: California
    Description:
    BakerAECOM will revise the effective Digital Flood Insurance Rate Map (DFIRM) and Flood Insurance Study (FIS) Report for Colusa County. A kick-off meeting was conducted on June 10, 2010, to discuss the scope of the map revision.


    Brushy, Frisk, Kellogg, Marsh, and Mount Diablo Creeks Study

    Study Type: Physical Map Revision
    County: Contra Costa
    State: California
    Description:
    New flood studies are currently being performed along the following flooding sources: portions of Brushy, Frisk, Kellogg, Marsh, and Mount Diablo Creeks. The update includes a new study of the 10- 50- 100- and 500- year flood events as well as the creation of floodways for the reaches.


    San Francisco Bay Coastal Study

    Study Type: Physical Map Revision
    County: Contra Costa
    State: California
    Description:
    BakerAECOM is performing coastal engineering analyses and completing new detailed analyses of the San Francisco Bay encompassing all or a portion of the bay shoreline areas within eight counties: Marin, Sonoma, Napa, Solano, Contra Costa, Alameda, San Mateo, and San Francisco.


    Physical Map Revision for Levee Analysis

    Study Type: Physical Map Revision
    County: Contra Costa
    State: California
    Description:
    BakerAECOM is performing riverine engineering analysis and levee analyses to map the area landward of the levees along Wildcat and San Pablo Creeks depicted as provisionally accredited on the June 16, 2009, effective countywide Digital Flood Insurance Rate Map (DFIRM) for Contra Costa County. New hydrologic and hydraulic analyses of Wildcat and San Pablo Creeks is being reviewed. The Federal Emergency Management Agency (FEMA) will not issue a determination letter finalizing the new FIRM panels for Contra Costa County and incorporated areas until updated analyses that meet FEMA guidelines are available. Additionally, FEMA studies for mapping flood hazards behind levee systems that cannot be recognized as providing protection from the base (1-percent-annual-chance) flood will not be finalized until the new set of guidelines for mapping flood hazards behind non-accredited levees are developed. For additional information, please refer to the New Levee Analyses and Approaches Fact Sheet.


    Open Pacific Coast Study

    Study Type: Physical Map Revision
    County: Del Norte
    State: California
    Description:
    BakerAECOM is performing a detailed coastal engineering study (modeling and analyses) of the Pacific coast of California. Results from this study will be used to remap the coastal flood risk and wave hazards for the California coast.


    Lower Smith River Physical Map Revision

    Study Type: Physical Map Revision
    County: Del Norte
    State: California
    Description:
    Michael Baker Jr., Inc. revised the community s FIS, FIRM and DFIRM database. This revision is based on a recent flood study along the Lower Smith River. The GIS data allows municipal governments to combine the data with their local GIS for floodplain management and land use planning. The revised PMR is effective as of November 26, 2010. The final FIS and map products for this project can be obtained from the Product Catalog on FEMA s Map Service Center web site: http://msc.fema.gov/webapp/wcs/stores/servlet/StoreCatalogDisplay?storeId=10001&catalogId=10001&langId=-1&userType=G.


     

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