Located in the picturesque NORBECK WILDLIFE PRESERVE in Custer, South Dakota, Bismark Lake is a serene body of water fed by BISMARK CREEK.
Wind
Humidity
Managed by the USDA Forest Service, this Federal-owned recreational spot offers a tranquil escape for nature enthusiasts and climate advocates alike. The Earth-type dam, completed in 1937, stands at 38 feet high and stores 626 acre-feet of water for fish and wildlife purposes, as well as recreational activities.
With a maximum storage capacity of 626 acre-feet and a normal storage level of 297 acre-feet, Bismark Lake is a vital resource for the surrounding ecosystem. The dam's spillway, uncontrolled with a width of 30 feet, ensures the safe release of excess water during periods of high discharge, with a maximum capacity of 2087 cubic feet per second. Despite being rated as having a high hazard potential, the dam's condition remains unassessed as of the last inspection in 2019, presenting a moderate risk that requires ongoing monitoring and management measures.
As a key site for outdoor recreation and conservation efforts, Bismark Lake serves as a valuable asset in the preservation of South Dakota's water resources and natural environment. Its significance extends beyond its physical structure, embodying a harmonious balance between human enjoyment and ecological stewardship in the face of climate challenges.
Year Completed |
1937 |
Dam Length |
280 |
Dam Height |
38 |
River Or Stream |
BISMARK CREEK |
Primary Dam Type |
Earth |
Hydraulic Height |
28 |
Drainage Area |
4 |
Nid Storage |
626 |
Structural Height |
40 |
Outlet Gates |
Uncontrolled |
Hazard Potential |
High |
Nid Height |
40 |