Prosser Warehouse Treatment Lagoon is an earth dam located in Benton County, Washington, built in 2012. It carries a Significant hazard potential classification and has a satisfactory condition assessment.
Dam profile
NID height · 14 ft14 ft tall and 475 ft long. Height is drawn to scale against a two-story house, about 25 ft; the profile is a generic embankment section and the water level is illustrative.
About Prosser Warehouse Treatment Lagoon
Prosser Warehouse Treatment Lagoon is a dam in Benton, Washington. The dam is owned by Zirkle Fruit Company (private).
The dam stands 14 feet tall and stretches 475 feet across, and has a maximum storage capacity of 23 acre-feet. Completed in 2012, the structure is relatively new.
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 satisfactory, indicating no existing or potential dam safety deficiencies are recognized. An emergency action plan is in place for this dam. The most recent inspection on record was 05/11/2022.
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Location
| State | Washington |
| County | Benton |
| Nearest City | Prosser |
| Coordinates | 46.22207, -119.73102 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 14 ft |
| Dam Length | 475 ft |
| Year Completed | 2012 (14 years old) |
Storage & Hydraulics
| NID Storage | 23 acre-ft |
| Max Storage | 23 acre-ft |
| Normal Storage | 18 acre-ft |
Ownership & Safety
| Purpose | Other |
| Owner | Zirkle Fruit Company |
| Owner Type | Private |
| Hazard Classification | Significant |
| Condition Assessment | Satisfactory |
| Last Inspection | 05/11/2022 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | WA02046 |
| Federal ID | WA02046 |
| More Info | State Dam Safety Program |