Sims Dam, located in Douglas County, Washington, was completed in 1960 and serves as a crucial flood risk reduction structure along the Columbia River.
Wind
Humidity
This private-owned earth dam has a hydraulic height of 7 feet and a storage capacity of 433 acre-feet, with a normal storage level of 187 acre-feet. Despite its low hazard potential, the dam has not been rated for its condition assessment.
Managed by the Washington Department of Ecology, Sims Dam is state-regulated, inspected, and enforced to ensure its structural integrity and safety. The dam plays a vital role in protecting the surrounding area from potential flooding events, with a maximum discharge capacity of 210 cubic feet per second. Although it lacks detailed information on its spillway type and emergency action plan, Sims Dam continues to be a key asset in managing water resources in the region.
Year Completed |
1960 |
River Or Stream |
Tr-Columbia River |
Primary Dam Type |
Earth |
Surface Area |
75 |
Hydraulic Height |
7 |
Drainage Area |
1.6 |
Nid Storage |
433 |
Structural Height |
7 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
7 |
Wilson Creek Below Corbett Draw Near Almira
|
0cfs |
Chelan River At Chelan
|
770cfs |
Methow River Near Pateros
|
5470cfs |
Okanogan River At Malott
|
10700cfs |
Omak Creek Near Omak
|
7cfs |
Crab Creek At Irby
|
2cfs |
| Location | Reservations | Toilets |
|---|---|---|
Million Dollar North - WDFW
|
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Steamboat Rock State Park
|
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Barker Canyon - WDFW
|