Grandview Wastewater E&f Lagoons Dam
Grandview Wastewater E&f Lagoons Dam is a buttress dam located in Yakima County, Washington, built in 1997. It carries a Significant hazard potential classification and has a fair condition assessment.
About Grandview Wastewater E&f Lagoons Dam
Grandview Wastewater E&f Lagoons Dam is a dam in Yakima, Washington. The dam is owned by Grandview City Hall (local government). It impounds the Yakima River.
The dam stands 9 feet tall and stretches 100 feet across, has a maximum storage capacity of 128 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1997, the structure is 29 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 10/02/2024.
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Location
| State | Washington |
| County | Yakima |
| River/Stream | Yakima River |
| Coordinates | 46.20539, -119.89131 |
Physical Characteristics
| Dam Type | Buttress |
| NID Height | 9 ft |
| Dam Length | 100 ft |
| Year Completed | 1997 (29 years old) |
Storage & Hydraulics
| NID Storage | 128 acre-ft |
| Max Storage | 128 acre-ft |
| Normal Storage | 112 acre-ft |
| Drainage Area | 0 sq mi |
Ownership & Safety
| Purpose | Other |
| Owner | Grandview City Hall |
| Owner Type | Local Government |
| Hazard Classification | Significant |
| Condition Assessment | Fair |
| Last Inspection | 10/02/2024 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | WA00754 |
| Federal ID | WA00754 |
| More Info | State Dam Safety Program |