Greaser Lake Reservoir
Greaser Lake Reservoir is an earth dam located in Lake County, Oregon, built in 1963. It carries a Low hazard potential classification.
About Greaser Lake Reservoir
The primary purpose of Greaser Lake Reservoir is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by Warner Valley Stock Company (private). It impounds the Twenty Mile Creek near No Downstream Settlement.
The dam stands 10 feet tall and stretches 505 feet across, creates a reservoir covering 4,000 acres, has a maximum storage capacity of 20,000 acre-feet, and collects water from a drainage area of 270 square miles. Completed in 1963, 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. The most recent inspection on record was 10/28/2015. That was over 10 years ago.
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Location
| State | Oregon |
| County | Lake |
| Nearest City | No Downstream Settlement |
| River/Stream | Twenty Mile Creek |
| Coordinates | 42.18466, -119.81167 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 10 ft |
| Dam Height | 10 ft |
| Dam Length | 505 ft |
| Year Completed | 1963 (63 years old) |
Storage & Hydraulics
| NID Storage | 20,000 acre-ft |
| Max Storage | 20,000 acre-ft |
| Normal Storage | 12,000 acre-ft |
| Surface Area | 4,000 acres |
| Drainage Area | 270 sq mi |
| Max Discharge | 1,440 cfs |
Ownership & Safety
| Purpose | Irrigation |
| Owner | WARNER VALLEY STOCK COMPANY |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not Rated |
| Last Inspection | 10/28/2015 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | OR00277 |
| Federal ID | OR00277 |
| More Info | State Dam Safety Program |