Lower Rimrock Dam
Lower Rimrock Dam is a rockfill dam located in Douglas County, Washington, built in 1972. It carries a Low hazard potential classification.
About Lower Rimrock Dam
The primary purpose of Lower Rimrock Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by The Nature Conservancy (private). It impounds the Mccarteney Creek near Palisades.
The dam stands 67 feet tall and stretches 255 feet across, creates a reservoir covering 550 acres, has a maximum storage capacity of 550 acre-feet, and collects water from a drainage area of 256 square miles. Completed in 1972, 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.
At 67 feet, this dam is taller than 96% of all dams in the United States.
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Location
| State | Washington |
| County | Douglas |
| Nearest City | Palisades |
| River/Stream | Mccarteney Creek |
| Coordinates | 47.49394, -119.75689 |
Physical Characteristics
| Dam Type | Rockfill |
| NID Height | 67 ft |
| Dam Length | 255 ft |
| Year Completed | 1972 (54 years old) |
Storage & Hydraulics
| NID Storage | 550 acre-ft |
| Max Storage | 550 acre-ft |
| Normal Storage | 550 acre-ft |
| Surface Area | 550 acres |
| Drainage Area | 256 sq mi |
| Max Discharge | 22,400 cfs |
Ownership & Safety
| Purpose | Recreation |
| Owner | The Nature Conservancy |
| Owner Type | Private |
| Hazard Classification | Low |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | WA00036 |
| Federal ID | WA00036 |
| More Info | State Dam Safety Program |