Flood zones are indicated in a community’s flood map. e.g. Harris County Flood Control District and City of Houston Acquire Land For New Flood Damage Reduction Project For Kingwood Area 3/4/2021 Construction Update: Chimney Rock and S. Rice Bridges 2/3/2021 Flood Control District Website Gets a Fresh Look 1/29/2021 PropertyShark provides a wealth of interactive real estate maps, plus property data and listings, in Harris County, TX. New and Preliminary Texas Flood Maps provide the public an early look at a home or community’s projected risk to flood hazards. SFHAs are labeled as Zone A, Zone AO, Zone AH, Zones A1-A30, Zone AE, Zone A99, Zone AR, Zone AR/AE, Zone AR/AO, Zone AR/A1-A30, Zone AR/A, Zone V, Zone VE, and Zones V1-V30. Need Help Welcome to the Harris County Flood Warning System. These areas are classified as Special Flood Hazard Areas (SFHA), and are located in a 100-year flood zone. Houston Flood Zones: description: This map represents Flood Insurance Rate Map (FIRM) data important for floodplain management, mitigation, and insurance activities for the National Flood Insurance Program (NFIP). Most of the flooding is in areas developed prior to the current understanding of flood potential and prior to regulations restricting construction in flood-prone areas. The City of Houston has initiated numerous property protection measures to reduce flood risk in the community. The 1-percent annual chance flood is also referred to as the base flood or 100-year flood. Inundation. This page is for homeowners who want to understand how their current effective Flood Map may change when the preliminary FEMA maps becomes effective. ... An interactive map of the Harris County Flood Control District: Disclaimer. 9900 Northwest Fwy., Houston 77092. Houston requires 1 foot of "freeboard," meaning buildings must be elevated at least 1 foot above the 100-year flood elevation. It does not mean that the flood will occur every 100 years; rather it is the flood elevation that has a 1- percent chance of being equaled or exceeded each year. A major flood occurs somewhere in Harris County about every two years. Major flooding events causing widespread flooding are relatively rare, although they have been occurring more frequently in recent years. Select watersheds to view the watershed layer and see which one is nearest you. The City has addressed property protection by requiring new construction in the high flood risk areas to be constructed at least 2 feet above the 500-year elevation (3 feet above the 500-year elevation if the building is considered a critical facility or located in the floodway). The term "100-year flood" can be misleading. Watersheds. Each flood zone describes the flood risk for a particular area, and those flood zones are used to determine insurance requirements and costs. 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