Coastal Barrier Resources System

The Coastal Barrier Resources Act (CBRA) 1982 and later amendments removed the Federal government from financial involvement associated with building and development in undeveloped portions of designated coastal barriers. These areas are mapped and designated as Coastal Barrier Resources System (CBRS) units, or otherwise protected areas. 

CBRS Zones

CBRA banned the sale of National Flood Insurance Program (NFIP) flood insurance policies for structures built or substantially improved on or after a specified date. For the initial CBRS designation, this date is October 1, 1983.  For all subsequent designations, this date is the date the CBRS zone was identified. CBRS zones and their identification dates are shown on Flood Insurance Rate Maps (FIRMs).

Development Within CBRS Zones

Communities may permit development in these areas even though no Federal assistance is available, provided the development meets NFIP requirements.

CBRS Zones in Key West

The City of Key West contains just a single CBRS zone.  This specific zone is delineated on the map excerpt by a hatched pattern.  It is either under the ownership of the State (Fort Zachary Taylor State Park) or falls within the purview of the US military.