Roche Harbor Lake Dam
Washington — San Juan County — Tr-Westcott Bay
Location
| State | Washington |
| County | San Juan |
| River | Tr-Westcott Bay |
| Coordinates | 48.59112, -123.12616 |
Physical Characteristics
| NID Height | 15 ft |
| Dam Height | — |
| Dam Length | 315 ft |
| NID Storage | 629 acre-ft |
| Max Storage | 629 acre-ft |
| Surface Area | 28 acres |
Safety Classification
| Hazard Potential | High |
| Condition Assessment | Satisfactory |
| EAP Status | Yes |
| Last Inspection | July 23, 2024 |
| Inspection Frequency | 5 |
Dam Information
| Year Completed | 2013 |
| Primary Purpose | Water Supply |
| Dam Type | Earth |
| Owner Type | Private |
| Owner | Roche Harbor Investments Inc |
| Other Name | Briggs Pond |
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.