Datové sady / FLOODPLAIN, YANKTON COUNTY, SOUTH DAKOTA, USA


FLOODPLAIN, YANKTON COUNTY, SOUTH DAKOTA, USA

Vydavatel Federal Emergency Management Agency, Department of Homeland Security

Datum vydání před více než 9 roky

US
beta

Shrnutí

Co poskytovatel nabízí?
ongoing release of a series of related datasets

Databázová licence
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Licence na obsah
Creative Commons CCZero

Způsob ověření
ověřený automaticky

Popis

The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the 1-percent-annual-chance flood event, the 0.2-percent-annual- chance flood event, and areas of minimal flood risk. The Floodplain Mapping/Redelineation flood risk boundaries are derived from the engineering information Flood Insurance Studies (FISs), previously published Flood Insurance Rate Maps (FIRMs), flood hazard analyses performed in support of the FISs and FIRMs, and new mapping data, where available. The FISs and FIRMs are published by the Federal Emergency Management Agency (FEMA).