Isabel
South Dakota — Dewey County
Location
| State | South Dakota |
| County | Dewey |
| Coordinates | 45.43806, -101.41050 |
Physical Characteristics
| NID Height | 30 ft |
| Dam Height | 30 ft |
| Dam Length | 1,200 ft |
| NID Storage | 2,432 acre-ft |
| Max Storage | 2,432 acre-ft |
| Surface Area | 115 acres |
Safety Classification
| Hazard Potential | High |
| Condition Assessment | Fair |
| EAP Status | — |
| Last Inspection | — |
| Inspection Frequency | 3 |
Dam Information
| Year Completed | 1935 |
| Primary Purpose | Recreation |
| Dam Type | — |
| Owner Type | — |
| Owner | GF&P |
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.