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DIGITAL FLOOD INSURANCE RATE MAP DATABASE, ALPENA COUNTY, MI
The Digital Flood Insurance Rate Map (DFIRM) Database depicts flood risk information and supporting data used to develop the risk data. The primary risk classifications used are... -
FLOODPLAIN, Alpena COUNTY, MICHIGAN
The Floodplain Mapping deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the 1-percent-annual-chance flood event,... -
APPROXIMATE HYDROLOGY, ALPENA COUNTY, MI USA
Hydrology data include spatial datasets and data tables necessary for documenting the hydrologic procedures for estimating flood discharges for a flood insurance study which...