Turnbull Peak Reservoir
Turnbull Peak Reservoir is an earth dam located in Malheur County, Oregon, built in 1983. It carries a Low hazard potential classification.
About Turnbull Peak Reservoir
The primary purpose of Turnbull Peak Reservoir is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by Turnbull Peak Ranch (private). It impounds the Cotton & Dick Creeks near Dowell Ranch.
The dam stands 13 feet tall and stretches 4,000 feet across, creates a reservoir covering 170 acres, has a maximum storage capacity of 754 acre-feet, and collects water from a drainage area of 52 square miles. Completed in 1983, the structure is 43 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 08/30/2012. That was over 13 years ago.
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Location
| State | Oregon |
| County | Malheur |
| Nearest City | Dowell Ranch |
| River/Stream | Cotton & Dick Creeks |
| Coordinates | 43.20124, -118.03902 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 13 ft |
| Dam Height | 13 ft |
| Dam Length | 4,000 ft |
| Year Completed | 1983 (43 years old) |
Storage & Hydraulics
| NID Storage | 754 acre-ft |
| Max Storage | 754 acre-ft |
| Normal Storage | 754 acre-ft |
| Surface Area | 170 acres |
| Drainage Area | 52 sq mi |
| Max Discharge | 30 cfs |
Ownership & Safety
| Purpose | Irrigation |
| Owner | TURNBULL PEAK RANCH |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not Rated |
| Last Inspection | 08/30/2012 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | OR00679 |
| Federal ID | OR00679 |
| More Info | State Dam Safety Program |