Stemilt Main Dam
Washington — Chelan County — Orr Creek-Offstream
Location
| State | Washington |
| County | Chelan |
| River | Orr Creek-Offstream |
| Coordinates | 47.31309, -120.30910 |
Physical Characteristics
| NID Height | 65 ft |
| Dam Height | — |
| Dam Length | 1,000 ft |
| NID Storage | 670 acre-ft |
| Max Storage | 670 acre-ft |
| Surface Area | 23 acres |
Safety Classification
| Hazard Potential | High |
| Condition Assessment | Fair |
| EAP Status | Yes |
| Last Inspection | April 22, 2025 |
| Inspection Frequency | 5 |
Dam Information
| Year Completed | 1962 |
| Primary Purpose | Irrigation |
| Dam Type | Earth |
| Owner Type | Public Utility |
| Owner | Lower Stemilt Irrigation 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.