CFW City Flood Risk Areas

✦ DISCOVERED BY ORIONAICFW_AGOL_ADMINEnvironmentUnited States of AmericaSource offline
Map preview of CFW City Flood Risk AreasUnited States of America

About this dataset

- This layer is a subset of the floodplain_cfw_studies layer. As the City of Fort Worth (City) develops their urban flood risk identification tools, the City Flood Risk Area (CFRA) is a regulatory product created with a high level of detail to regulate development in areas of high urban flood risk outside of the FEMA mapped floodplains.   The City has created CFRA mapping products for several study areas as part of a detailed modeling effort using InfoWorks ICM and XPSWMM 1D/2D software for the 100-year storm event based on Atlas 14 precipitation data. A seven-step standardized workflow methodology was used to process this new CFRA mapping and refine the boundaries with emphasis on repeatability and improved efficiency.  These steps aim to remove excessive noise, eliminate internal voids, evaluate isolated polygons, and smoothen the external polygon boundary to make the mapping output aesthetically pleasing and easier to use. The parameters used in the workflow process to perform the cleaning and smoothening steps were fine-tuned to work universally across all CFRAs.  Results were compared to the raw data received from the City for general shape conformance and major approximations due to computer processing and the parameters were found to be generally universally acceptable for all CFRA areas across the City.

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