Lower Granite Lock and Dam - West Levee
Washington — Nez Perce County — SNAKE RIVER
Location
| State | Washington |
| County | Nez Perce |
| River | SNAKE RIVER |
| Coordinates | 46.42250, -117.03420 |
Physical Characteristics
| NID Height | 27 ft |
| Dam Height | 15 ft |
| Dam Length | 19,272 ft |
| NID Storage | 0 acre-ft |
| Max Storage | — |
| Surface Area | — |
Safety Classification
| Hazard Potential | High |
| Condition Assessment | Not Available |
| EAP Status | Yes |
| Last Inspection | June 7, 2022 |
| Inspection Frequency | 5 |
Dam Information
| Year Completed | 1974 |
| Primary Purpose | Navigation |
| Dam Type | Earth |
| Owner Type | Federal |
| Owner | USACE - Walla Walla District |
| Other Name | Lewiston Levees |
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.