Proposed FEMA Floodplain Maps Use this Overview Index Map (pdf) as a reference to find the number of the individual map or maps of interest. These maps are used for flood insurance purposes.
| Proposed FEMA Floodplain Maps |
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Proposed City of Austin Floodplain Maps Use
this Overview Index Map (pdf) as a reference to find the number of the individual maps of interest. These maps are used for development purposes.
| Proposed City of Austin Floodplain Maps (Future Conditions) |
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The proposed FEMA floodplains are based upon existing conditions in the watershed (what's on the ground now) and primarily depict the 1% annual chance flood (100-year floodplain) and the 0.2% annual chance flood (500-year floodplain). When they become effective, mortgage companies will use them to determine whether or not you are required to purchase flood insurance through the National Flood Insurance Program.
The proposed City of Austin Future Conditions floodplains are based upon future conditions in the watershed (when the watershed is fully developed). They depict the future 4% annual chance flood (future 25-year floodplain) and the future 1% annual chance flood (future 100-year floodplain). When they become effective, they will be used to determine what sorts of development, if any, will be allowed on a property. The City of Austin floodplains are not used to determine whether you need to purchase flood insurance through the National Flood Insurance Program. For more information on floodplain development, please visit this page.
If you have questions about the new maps, you may contact the City of Austin's
Map Modernization Hotline at (512) 974-2843
or e-mail us.
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