Metaline Falls Wastewater Lagoon No 3
Metaline Falls Wastewater Lagoon No 3 is an earth dam located in Pend Oreille County, Washington, built in 1963. It carries a Significant hazard potential classification and has a fair condition assessment.
About Metaline Falls Wastewater Lagoon No 3
Metaline Falls Wastewater Lagoon No 3 is a dam in Pend Oreille, Washington. The dam is owned by Metaline Falls Town (local government). It impounds the Offstream - Pend Oreille near Metaline Falls.
The dam stands 11 feet tall and stretches 990 feet across, creates a reservoir covering 2 acres, has a maximum storage capacity of 61 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1963, the structure is well into its service life at over 50 years old.
This dam has a significant hazard potential classification, meaning that a failure could cause significant economic damage — flooding roads, bridges, or property downstream — but is not expected to result in loss of life. Its condition is rated fair — the dam has minor deficiencies that are being addressed or do not pose an immediate safety threat. An emergency action plan is in place for this dam. The most recent inspection on record was 08/01/2024.
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Location
| State | Washington |
| County | Pend Oreille |
| Nearest City | Metaline Falls |
| River/Stream | Offstream - Pend Oreille |
| Coordinates | 48.86428, -117.36468 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 11 ft |
| Dam Length | 990 ft |
| Year Completed | 1963 (63 years old) |
Storage & Hydraulics
| NID Storage | 61 acre-ft |
| Max Storage | 61 acre-ft |
| Normal Storage | 10 acre-ft |
| Surface Area | 2 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 1 cfs |
Ownership & Safety
| Purpose | Other |
| Owner | Metaline Falls Town |
| Owner Type | Local Government |
| Hazard Classification | Significant |
| Condition Assessment | Fair |
| Last Inspection | 08/01/2024 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | WA01823 |
| Federal ID | WA01823 |
| More Info | State Dam Safety Program |