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DFIRM Depth Grid:1% Annual Chance Flood Depth Grid for Blair County

2013 - Federal Emergency Management Agency


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API
REST: https://imagery.pasda.psu.edu/arcgis/rest/services/pasda/FEMADepthGrids/MapServer
WMS: https://imagery.pasda.psu.edu/arcgis/services/pasda/FEMADepthGrids/MapServer/WMSServer?SERVICE=WMS&request=getcapabilities
ADDITIONAL RESOURCES
n/a
ABSTRACT
A 1% Annual Chance Flood Depth Grid represents the height of a 100 year flood surface elevation above ground or bottom of a stream channel measured in feet. The values are captured per cell of a defined area. The cell size for 1% Annual Chance Flood Depth Grids is variable. It is calculated by subtracting the height of the ground surface elevation from the surface height of the 1% annual chance flood. A Flood Depth Grid can assist a community in understanding, communicating, and relaying the variability and severity of flooding in a mapped floodplain.