Horse Spring Coulee Dam is an earth dam located in Okanogan County, Washington, built in 1924. It carries a Low hazard potential classification.
Dam profile
NID height · 67 ft67 ft tall and 650 ft long, taller than 96% of U.S. dams with a recorded height. Height is drawn to scale against a ten-story building, about 100 ft; the profile is a generic embankment section and the water level is illustrative.
About Horse Spring Coulee Dam
The primary purpose of Horse Spring Coulee Dam is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by Wa DNR, Division of Lands & Minerals (state). It impounds the Horse Springs Coulee near Riverside.
The dam stands 67 feet tall and stretches 650 feet across, has a maximum storage capacity of 7,000 acre-feet, and collects water from a drainage area of 2 square miles. Completed in 1924, the structure is over a century 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.
At 67 feet, this dam is taller than 96% of all dams in the United States.
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Location
| State | Washington |
| County | Okanogan |
| Nearest City | Riverside |
| River/Stream | Horse Springs Coulee |
| Coordinates | 48.78690, -119.56410 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 67 ft |
| Dam Length | 650 ft |
| Year Completed | 1924 (102 years old) |
Storage & Hydraulics
| NID Storage | 7,000 acre-ft |
| Max Storage | 7,000 acre-ft |
| Drainage Area | 2 sq mi |
Ownership & Safety
| Purpose | Irrigation |
| Owner | Wa DNR, Division of Lands & Minerals |
| Owner Type | State |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | WA00443 |
| Federal ID | WA00443 |
| More Info | State Dam Safety Program |