Rimrock Lake
Rimrock Lake is an earth dam located in Harney County, Oregon, built in 1905. It carries a Low hazard potential classification.
About Rimrock Lake
The primary purpose of Rimrock Lake is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by Pueblo Mountain Farm & Ranch, Llc (private). It impounds the Rimrock Lake near No Downstream Settlement.
The dam stands 13 feet tall and stretches 200 feet across, creates a reservoir covering 134 acres, has a maximum storage capacity of 200 acre-feet, and collects water from a drainage area of 4 square miles. Completed in 1905, 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. The most recent inspection on record was 06/06/2017.
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Location
| State | Oregon |
| County | Harney |
| Nearest City | No Downstream Settlement |
| River/Stream | Rimrock Lake |
| Coordinates | 43.49722, -119.81889 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 13 ft |
| Dam Height | 10 ft |
| Dam Length | 200 ft |
| Year Completed | 1905 (121 years old) |
Storage & Hydraulics
| NID Storage | 200 acre-ft |
| Max Storage | 200 acre-ft |
| Normal Storage | 200 acre-ft |
| Surface Area | 134 acres |
| Drainage Area | 4 sq mi |
| Max Discharge | 75 cfs |
Ownership & Safety
| Purpose | Irrigation |
| Owner | PUEBLO MOUNTAIN FARM & RANCH, LLC |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not Rated |
| Last Inspection | 06/06/2017 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | OR02842 |
| Federal ID | OR02842 |
| More Info | State Dam Safety Program |