Oregon End Dam is an earth dam located in Harney County, Oregon, built in 1955. It carries a Low hazard potential classification.
Dam profile
NID height · 16 ft16 ft tall and 417 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 Oregon End Dam
The primary purpose of Oregon End Dam is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by Jim and Helen Mcdonald (private). It impounds the Rincon Creek near No Downstream Settlement.
The dam stands 16 feet tall and stretches 417 feet across, creates a reservoir covering 42 acres, has a maximum storage capacity of 250 acre-feet, and collects water from a drainage area of 8 square miles. Completed in 1955, 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 12/18/2018.
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Location
| State | Oregon |
| County | Harney |
| Nearest City | No Downstream Settlement |
| River/Stream | Rincon Creek |
| Coordinates | 42.05027, -118.80171 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 16 ft |
| Dam Height | 16 ft |
| Dam Length | 417 ft |
| Year Completed | 1955 (71 years old) |
Storage & Hydraulics
| NID Storage | 250 acre-ft |
| Max Storage | 250 acre-ft |
| Normal Storage | 205 acre-ft |
| Surface Area | 42 acres |
| Drainage Area | 8 sq mi |
| Max Discharge | 452 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Irrigation |
| Owner | Jim and Helen Mcdonald |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Last Inspection | 12/18/2018 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | OR00285 |
| Federal ID | OR00285 |
| More Info | State Dam Safety Program |