Yokom Reservoir
Yokom Reservoir is an earth dam located in Grant County, Oregon, built in 1947. It carries a Low hazard potential classification.
About Yokom Reservoir
The primary purpose of Yokom Reservoir is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by Broken Leg Ranch, Mt. Vernon 97865 (private). It impounds the Birch Creek near Mt. Vernon.
The dam stands 25 feet tall and stretches 600 feet across, creates a reservoir covering 6 acres, has a maximum storage capacity of 45 acre-feet, and collects water from a drainage area of 15 square miles. Completed in 1947, 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 01/27/2014. That was over 12 years ago.
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Location
| State | Oregon |
| County | Grant |
| Nearest City | Mt. Vernon |
| River/Stream | Birch Creek |
| Coordinates | 44.43507, -119.21558 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 25 ft |
| Dam Height | 25 ft |
| Dam Length | 600 ft |
| Year Completed | 1947 (79 years old) |
Storage & Hydraulics
| NID Storage | 45 acre-ft |
| Max Storage | 45 acre-ft |
| Normal Storage | 45 acre-ft |
| Surface Area | 6 acres |
| Drainage Area | 15 sq mi |
| Max Discharge | 1,224 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Irrigation |
| Owner | BROKEN LEG RANCH, MT. VERNON 97865 |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not Rated |
| Last Inspection | 01/27/2014 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | OR03629 |
| Federal ID | OR03629 |
| More Info | State Dam Safety Program |