Floodways and one-dimensional unsteady-state flow models
Bourget, Lisa C; Pajak, Mary Jean.
In. Association of State Floodplain Managers. From the mountains to the sea - Developing local capabilities : Proceedings of the Nineteenth Annual Conference of the Association of State Floodplain Managers. Madison, Association of State Floodplain Managers, 1995. p.261-6, ilus, tab.
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| Desastres | ID: des-12462
Under the National Flood Insurance Program (NFIP), floodways are often provided to communities as a floodplain management tool. The floodway includes the channel of a river or other watercourse and the adjacent land areas that must remain unobstructed to discharge the base (1 percent annual chance) flood without cumulatively increasing the water-surface elevation by more than the allowable surcharge (minimum federal standard is 1.0 foot). The remaining portion of the Special Flood Hazard Area (SFHA), or base floodplain, outside of the floodway is the floodway fringe. Unsteady-state flow models are gaining ever-increasing popularity, particularly for areas where flood storage effects should be considered. Although originally defined for steady-state models, floodways are an appropriate tool for unsteady-state models because they can provide an easily-implementable tool for communities to use for ensuring that development in floodplains does not cause unacceptable increases in flood levels
Biblioteca responsable:
CR3.1
Ubicación: CR3.1; DES
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