Square Lake Dam
Washington — Chelan County — Prospect Creek
Location
| State | Washington |
| County | Chelan |
| River | Prospect Creek |
| Coordinates | 47.64671, -121.11639 |
Physical Characteristics
| NID Height | 7 ft |
| Dam Height | — |
| Dam Length | 104 ft |
| NID Storage | 913 acre-ft |
| Max Storage | 913 acre-ft |
| Surface Area | 500 acres |
Safety Classification
| Hazard Potential | High |
| Condition Assessment | Poor |
| EAP Status | Yes |
| Last Inspection | August 13, 2018 |
| Inspection Frequency | 5 |
Dam Information
| Year Completed | 1938 |
| Primary Purpose | Irrigation |
| Dam Type | Rockfill |
| Owner Type | Public Utility |
| Owner | Icicle & Peshastin 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.