Patterson Lake Dam
Washington — Okanogan County
Location
| State | Washington |
| County | Okanogan |
| Coordinates | 48.46727, -120.25114 |
Physical Characteristics
| NID Height | 32 ft |
| Dam Height | — |
| Dam Length | 260 ft |
| NID Storage | 4,100 acre-ft |
| Max Storage | 4,100 acre-ft |
| Surface Area | 150 acres |
Safety Classification
| Hazard Potential | High |
| Condition Assessment | Fair |
| EAP Status | — |
| Last Inspection | — |
| Inspection Frequency | 5 |
Dam Information
| Year Completed | 1924 |
| Primary Purpose | Irrigation |
| Dam Type | — |
| Owner Type | — |
| Owner | Wolf Creek Reclamation 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.