The 1% annual chance flood is also referred to as the base flood or 100-year flood. SFHAs are defined as the area that will be inundated by the flood event having a 1% chance of being equaled or exceeded in any given year. FEMA identifies floodplains in order to calculate flood risks for insurance purposes, particularly within Special Flood Hazard Areas (SFHA). The Department of Homeland Security's Federal Emergency Management Agency (FEMA) is in the process of releasing new floodplain maps for the portion of the City of Cedar Park that lies within Williamson County. View the Interactive Map with General Overview of Changes. Homeowners, renters and business owners in Williamson County are encouraged to look over newly released preliminary flood maps in order to determine their flood risks and make informed decisions.Ĭounty officials and the Federal Emergency Management Agency (FEMA) are presenting the preliminary maps to communities and unincorporated areas in Williamson County in order to help leaders and residents identify known flood risks and use that information to make decisions about buying flood insurance and any future development. Preliminary Flood Maps in Williamson County, TX Ready for Public View

Texas flood map