Connell Wastewater Lagoons
Connell Wastewater Lagoons is an earth dam located in Franklin County, Washington, built in 2000. It carries a Significant hazard potential classification and has a fair condition assessment.
About Connell Wastewater Lagoons
Connell Wastewater Lagoons is a dam in Franklin, Washington. The dam is owned by Connell City (local government). It impounds the Providence Coulee - Offstream near City Of Connell.
The dam stands 20 feet tall and stretches 2,800 feet across, creates a reservoir covering 30 acres, has a maximum storage capacity of 322 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 2000, the structure is 26 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 07/17/2024.
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Location
| State | Washington |
| County | Franklin |
| Nearest City | City Of Connell |
| River/Stream | Providence Coulee - Offstream |
| Coordinates | 46.69492, -118.84068 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 20 ft |
| Dam Length | 2,800 ft |
| Year Completed | 2000 (26 years old) |
Storage & Hydraulics
| NID Storage | 322 acre-ft |
| Max Storage | 322 acre-ft |
| Normal Storage | 230 acre-ft |
| Surface Area | 30 acres |
| Drainage Area | 0 sq mi |
Ownership & Safety
| Purpose | Other |
| Owner | Connell City |
| Owner Type | Local Government |
| Hazard Classification | Significant |
| Condition Assessment | Fair |
| Last Inspection | 07/17/2024 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | WA01821 |
| Federal ID | WA01821 |
| More Info | State Dam Safety Program |