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<br />Hays COUlll\ "L; i.T ! <br /> <br />I <br /> <br />2.0 <br /> <br />Assess the Hazard (Risk Assessment -CRS Activity 511.4.) <br /> <br />2.1 Map of Known Hazard Areas. <br /> <br />The Hays County Map of Known Hazard Areas is a GIS mapping document included in <br />Attachment "B". Mr. Steve Floyd, Hays County Environmental Health Department, prepared a <br />GIS Base Map for Hays County identifying each community with overlays showing critical <br />facilities cross-referenced with flood hazard mapping and other hazards. The GIS Base Map <br />was utilized by the Hays County Mitigation Planning Committee and the Consultant to analyze <br />hazard impacts on Hays County unincorporated areas and each community within the county. <br /> <br />The Hays County Flood Hazard is visually displayed in the series of figures include in Section <br />2.3, Flood Hazard and in Attachment "B": <br /> <br />Figure 2.1 - Flood Hazard Sector 1 - Dripping Springs <br />Figure 2.1 - Flood Hazard Sector 2 - KylelBuda <br />Figure 2.1 - Flood Hazard Sector 3 - San Marcos <br />Figure 2.1 - Flood Hazard Sector 4 - Wimberley <br /> <br />NFIP Flood Zones are color coded on the GIS Overlay in Attachment "B" for the 4 Planning <br />Sectors with areas designated as: <br /> <br />I <br /> <br />Zone A - Areas designated as a Special Flood Hazard Area (SFHA) with no base flood <br />elevations determined. SFHA are subject to be inundated by the 1 % annual chance flood event. <br />Zone AE - Areas designated as a Special Flood Hazard Area (SFHA) with base flood <br />elevations determined. SFHA are subject to be inundated by the 1 % annual chance flood event. <br />Zone AH - Areas designated as a Special Flood Hazard Area (SFHA) with flood depths of 1 to <br />3 feet (usually areas of ponding) and base flood elevations determined. <br />Zone X (shaded) - Areas of 0.2% annual chance flood; areas of 1 % annual chance flood with <br />average depths of less than 1 foot or with drainage areas less than 1 square mile; and areas <br />protected by levees from 1 % annual chance flood. <br />Zone X (unshaded) - Areas determined to be outside the 0.2% annual chance flood. <br /> <br />HAZMAT Zones for the IH-35 Corridor are shown on the GIS mapping, _: <br />nt and in Attachment "B". <br />The HAZMA T Zones are color coded for areas within the 1 mile; 2 mile and 5 mile corridors <br />along IH-35. <br /> <br /> <br />Landslide Susceptibility Map showing a moderate zone along the eastern boundary of Hays <br />County. <br /> <br />I <br /> <br />Also, Table 4, "Hays County Existing NFIP Mapping" lists the flood insurance program <br />mapping published by FEMA. <br />Table 4 identifies each map panel, publication date and map scale and lists streams studies, <br />floodway information and remarks. Table 4 also includes a summary of map panels published, <br />panel age, and technical data age and lists the NFIP status of each community in Hays County. <br /> <br />Hays County, Texas <br />Miligalion Plan <br />28 <br />