Mosley Reservoir
Mosley Reservoir is an earth dam located in Baker County, Oregon, built in 1950. It carries a Low hazard potential classification.
About Mosley Reservoir
The primary purpose of Mosley Reservoir is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by Blake Dennis (private). It impounds the Pine Creek, Trib To near Halfway.
The dam stands 20 feet tall and stretches 120 feet across, creates a reservoir covering 25 acres, has a maximum storage capacity of 260 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1950, the structure is well-established, with more than 75 years of service.
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 04/02/2015. That was over 11 years ago.
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Location
| State | Oregon |
| County | Baker |
| Nearest City | Halfway |
| River/Stream | Pine Creek, Trib To |
| Coordinates | 44.93451, -117.09153 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 20 ft |
| Dam Height | 20 ft |
| Dam Length | 120 ft |
| Year Completed | 1950 (76 years old) |
Storage & Hydraulics
| NID Storage | 260 acre-ft |
| Max Storage | 260 acre-ft |
| Normal Storage | 180 acre-ft |
| Surface Area | 25 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 19 cfs |
Ownership & Safety
| Purpose | Irrigation |
| Owner | BLAKE DENNIS |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not Rated |
| Last Inspection | 04/02/2015 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | OR00175 |
| Federal ID | OR00175 |
| More Info | State Dam Safety Program |