Sims Dam
Sims Dam is an earth dam located in Douglas County, Washington, built in 1960. It carries a Low hazard potential classification.
About Sims Dam
The primary purpose of Sims Dam is flood risk reduction. The dam is designed to control downstream flooding by temporarily storing excess water during storms and releasing it at a controlled rate. The dam is owned by Russelhunt (private). It impounds the Tr-columbia River.
The dam stands 7 feet tall, creates a reservoir covering 75 acres, has a maximum storage capacity of 433 acre-feet, and collects water from a drainage area of 1 square miles. Completed in 1960, 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 | Douglas |
| River/Stream | Tr-columbia River |
| Coordinates | 47.81054, -119.35402 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 7 ft |
| Year Completed | 1960 (66 years old) |
Storage & Hydraulics
| NID Storage | 433 acre-ft |
| Max Storage | 433 acre-ft |
| Normal Storage | 187 acre-ft |
| Surface Area | 75 acres |
| Drainage Area | 1 sq mi |
| Max Discharge | 210 cfs |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | RusselHunt |
| Owner Type | Private |
| Hazard Classification | Low |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | WA00024 |
| Federal ID | WA00024 |
| More Info | State Dam Safety Program |