FEMA provides access to the National Flood Hazard Layer through a Web Map Service. The National Flood Hazard Layer is a computer database that contains FEMA's flood hazard map data. The data depict flood hazard information and supporting data used to develop the information. The primary hazard classifications are the 1 percent-annual-chance flood event, the 0.2 percent-annual-chance flood event, and areas of minimal flood hazard. Flood hazard and supporting data are developed using specifications for horizontal control consistent with 1:12,000-scale mapping. If you plan to display maps from the National Flood Hazard Layer with other map data for official purposes, ensure that the other information meets FEMA's standards for map accuracy. The NFHL data are from FEMA's Digital Flood Insurance Rate Map (DFIRM) databases. New data are added continually. The NFHL also contains changes to DFIRM data made by Letters of Map Revision (LOMRs). The service provides map images geo-referenced to the earth's surface using the North American Datum of 1983, Geodetic Reference System 80 coordinate system.Please reference the metadata for contact information.

This dataset is an ArcGIS Shapefile representing areas that Planning & Zoning has determined to be Stormwater Draininage Problem Areas for use in the Minor Subdivision Review Process. The specific area's were identified by Roger Blaylock, County Engineer, Road & Bridge Foreman for each Commission District, and data received from Roads & Bridges during the April 2006 100 Year Flood Event. The Digital DFRIM was appended to the layer to replace FEMA Q3 data in April 2009.