Rosalia Sewage Lagoon
Washington — Whitman County
Location
| State | Washington |
| County | Whitman |
| Coordinates | 47.24150, -117.37305 |
Physical Characteristics
| NID Height | 10 ft |
| Dam Height | — |
| Dam Length | 2,000 ft |
| NID Storage | 37 acre-ft |
| Max Storage | 37 acre-ft |
| Surface Area | 5 acres |
Safety Classification
| Hazard Potential | Significant |
| Condition Assessment | Fair |
| EAP Status | Yes |
| Last Inspection | September 26, 2023 |
| Inspection Frequency | 5 |
Dam Information
| Year Completed | 1989 |
| Primary Purpose | Other |
| Dam Type | Earth |
| Owner Type | Local Government |
| Owner | Rosalia STP |
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.