Thorald Dam
Washington — San Juan County — Tr-Parks Bay
Location
| State | Washington |
| County | San Juan |
| River | Tr-Parks Bay |
| Coordinates | 48.56242, -122.97161 |
Physical Characteristics
| NID Height | 19 ft |
| Dam Height | — |
| Dam Length | 400 ft |
| NID Storage | 98 acre-ft |
| Max Storage | 98 acre-ft |
| Surface Area | 8 acres |
Safety Classification
| Hazard Potential | Low |
| Condition Assessment | — |
| EAP Status | Not Required |
| Last Inspection | — |
| Inspection Frequency | — |
Dam Information
| Year Completed | 1988 |
| Primary Purpose | Irrigation |
| Dam Type | Earth |
| Owner Type | Private |
| Owner | San Juan Preservation Trust |
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.