Lake Wanalain Dam
South Dakota, Brule County, American Creek
Location
| State | South Dakota |
| County | Brule |
| River | American Creek |
| Coordinates | 43.81095, -99.25208 |
Physical Characteristics
| NID Height | 21 ft |
| Dam Height | 21 ft |
| Dam Length | 250 ft |
| NID Storage | 8,378 acre-ft |
| Max Storage | 8,378 acre-ft |
| Surface Area | 110 acres |
Safety Classification
| Hazard Potential | High |
| Condition Assessment | Fair |
| EAP Status | Yes |
| Last Inspection | October 3, 2022 |
| Inspection Frequency | 3 |
Dam Information
| Year Completed | 1936 |
| Primary Purpose | Recreation |
| Dam Type | Earth |
| Owner Type | State |
| Owner | S&PL |
Location Map
About This Dam Record
Dam safety data is maintained by the Army Corps of Engineers National Inventory of Dams (NID). High-hazard dams are those where failure could cause loss of life or major property damage downstream.