Prairie Coteau Watershed Improvement & Protection Project

Pierpont Dam and Reservoir is located in northwestern Day County, South Dakota.  Land-use in the watershed is mainly cropland.


Pierpont Dam & Reservoir

Maximum Depth: 13 feet 

Mean Depth: 8 feet

Lake Volume: 602 acre-ft

Surface Area: 77 acres 

Shoreline Length: 2.2 miles

Watershed Acres: 5,885 acres


Major Tributaries: Located on the Mud Creek which flows west to the James River.


Warm Water Permanent Fisheries: northern pike, yellow perch, black bullhead, black crappie, green sunfish and largemouth bass.


For more information on Pierpont Dam, click on the following links:


Watershed Map


SD GF&P Lake Contour Map