Ely Pump Storage Dam
Ely Pump Storage Dam is an earth dam located in Benton County, Washington, built in 1965. It carries a Low hazard potential classification.
About Ely Pump Storage Dam
The primary purpose of Ely Pump Storage Dam is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by Wallula Gap Vineyards Llc (private). It impounds the Columbia River-offstream.
The dam stands 15 feet tall and stretches 1,800 feet across, creates a reservoir covering 4 acres, has a maximum storage capacity of 70 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1965, the structure is well into its service life at over 50 years old.
This dam has a low hazard potential classification, meaning that failure would cause minimal damage, limited primarily to the dam owner's property, with no expected loss of life.
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Location
| State | Washington |
| County | Benton |
| River/Stream | Columbia River-offstream |
| Coordinates | 45.97904, -119.05050 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 15 ft |
| Dam Length | 1,800 ft |
| Year Completed | 1965 (61 years old) |
Storage & Hydraulics
| NID Storage | 70 acre-ft |
| Max Storage | 70 acre-ft |
| Normal Storage | 25 acre-ft |
| Surface Area | 4 acres |
| Drainage Area | 0 sq mi |
Ownership & Safety
| Purpose | Irrigation |
| Owner | Wallula Gap Vineyards LLC |
| Owner Type | Private |
| Hazard Classification | Low |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | WA00543 |
| Federal ID | WA00543 |
| More Info | State Dam Safety Program |