Wanapum
Washington, Kittitas County, Columbia River
Location
| State | Washington |
| County | Kittitas |
| River | Columbia River |
| Coordinates | 46.87340, -119.97119 |
Physical Characteristics
| NID Height | 206 ft |
| Dam Height | 93 ft |
| Dam Length | 8,639 ft |
| NID Storage | 796,000 acre-ft |
| Max Storage | 796,000 acre-ft |
| Surface Area | 14,590 acres |
Safety Classification
| Hazard Potential | High |
| Condition Assessment | Fair |
| EAP Status | Yes |
| Last Inspection | April 3, 2023 |
| Inspection Frequency | 1 |
Dam Information
| Year Completed | 1965 |
| Primary Purpose | Hydroelectric |
| Dam Type | Gravity |
| Owner Type | Public Utility |
| Owner | Grant County PUD |
| Other Name | Wanapum (Res) |
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.