Big Bend Dam
South Dakota — Lyman County
Location
| State | South Dakota |
| County | Lyman |
| Coordinates | 44.04170, -99.44453 |
Physical Characteristics
| NID Height | 205 ft |
| Dam Height | 96 ft |
| Dam Length | 10,570 ft |
| NID Storage | 1,900,000 acre-ft |
| Max Storage | 1,900,000 acre-ft |
| Surface Area | 60,000 acres |
Safety Classification
| Hazard Potential | High |
| Condition Assessment | Not Available |
| EAP Status | — |
| Last Inspection | — |
| Inspection Frequency | 5 |
Dam Information
| Year Completed | 1963 |
| Primary Purpose | Flood Risk Reduction |
| Dam Type | — |
| Owner Type | — |
| Owner | USACE - Omaha District |
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.