Spearfish Creek Floodplain Analysis
SPEARFISH CREEK FLOODPLAIN ANALYSIS Spearfish, South Dakota About the Project Spearfish Creek is the main stream flowing through the City of Spearfish (City) and was included in the City’s original 1981 Flood Insurance Rate Maps (FIRMs). As the city expanded north, revised floodplain mapping in 1990 extended north past Interstate 90. As with many communities […]