American Falls Dam
Idaho — Power County — SNAKE RIVER
Location
| State | Idaho |
| County | Power |
| River | SNAKE RIVER |
| Coordinates | 42.77940, -112.87430 |
Physical Characteristics
| NID Height | 104 ft |
| Dam Height | 87 ft |
| Dam Length | 5,277 ft |
| NID Storage | 1,671,300 acre-ft |
| Max Storage | 1,671,300 acre-ft |
| Surface Area | 58,076 acres |
Safety Classification
| Hazard Potential | High |
| Condition Assessment | Not Available |
| EAP Status | Yes |
| Last Inspection | April 25, 2022 |
| Inspection Frequency | 4 |
Dam Information
| Year Completed | 1927 |
| Primary Purpose | Flood Risk Reduction |
| Dam Type | Concrete |
| Owner Type | Federal |
| Owner | BUREAU OF RECLAMATION |
| Other Name | American Falls Reservoir |
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.