Hay Lake is an earth dam located in Harney County, Oregon, built in 1905. It carries a Low hazard potential classification.
Dam profile
NID height · 13 ft13 ft tall and 100 ft long. Height is drawn to scale against a two-story house, about 25 ft; the profile is a generic embankment section and the water level is illustrative.
About Hay Lake
The primary purpose of Hay Lake is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by Baldwin Sheep Company (private). It impounds the Hay and Avery Creeks near No Downstream Settlement.
The dam stands 13 feet tall and stretches 100 feet across, creates a reservoir covering 133 acres, has a storage capacity of 200 acre-feet, and collects water from a drainage area of 23 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 01/01/1960. That was over 66 years ago.
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Location
| State | Oregon |
| County | Harney |
| Nearest City | No Downstream Settlement |
| River/Stream | Hay and Avery Creeks |
| Coordinates | 43.47111, -119.76056 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 13 ft |
| Dam Height | 10 ft |
| Dam Length | 100 ft |
| Year Completed | 1905 (121 years old) |
Storage & Hydraulics
| NID Storage | 200 acre-ft |
| Normal Storage | 200 acre-ft |
| Surface Area | 133 acres |
| Drainage Area | 23 sq mi |
| Max Discharge | 7 cfs |
Ownership & Safety
| Purpose | Irrigation |
| Owner | Baldwin Sheep Company |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Last Inspection | 01/01/1960 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | OR01891 |
| Federal ID | OR01891 |
| More Info | State Dam Safety Program |