FEMA Floodplains and the National Flood Insurance Program:
There is a National Flood Insurance Program (NFIP), managed by the Federal Emergency Management Agency (FEMA). FEMA utilizes statistical data for river flow, storm tides, hydrologic/hydraulic analyses, rainfall and topographic surveys to create flood hazard maps within the United States. FEMA is currently updating and modernizing all Flood Insurance Rate Maps (FIRMs)to a digital format throughout the United States. These digital flood hazard maps provide an official depiction of flood hazards for each community and for properties located within it. These flood hazard mapping associated with Orange County was updated and effective as of August 2009. The latest mapping is accessible from the following website:
In order to easily navigate the FEMA Map Service Center and understand it contents, County Planning recommends that the following information be reviewed:
Additional information related to water resources in Orange County can be accessed here.