South Cottonwood Creek Reservoir
South Cottonwood Creek Reservoir is a gravity dam located in Malheur County, Oregon, built in 1961. It carries a Low hazard potential classification and has a poor condition assessment.
About South Cottonwood Creek Reservoir
The primary purpose of South Cottonwood Creek Reservoir is fire protection, stock, or small fish pond. The dam maintains a small impoundment used for fire suppression, livestock watering, or as a fish pond. The dam is owned by Doi Blm (federal). It impounds the S. Fk. Cottonwood Creek near J. Lawrence Ranch.
The dam stands 28 feet tall and stretches 110 feet across, creates a reservoir covering 9 acres, and has a maximum storage capacity of 9 acre-feet. Completed in 1961, 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. Its condition is rated poor, meaning the dam has recognized safety deficiencies that require remediation to address risks. The most recent inspection on record was 09/24/2020.
Search for dams near your address to see all dams in your area with hazard classifications and safety data.
Location
| State | Oregon |
| County | Malheur |
| Nearest City | J. Lawrence Ranch |
| River/Stream | S. Fk. Cottonwood Creek |
| Coordinates | 43.86066, -117.84988 |
Physical Characteristics
| Dam Type | Gravity |
| NID Height | 28 ft |
| Dam Length | 110 ft |
| Year Completed | 1961 (65 years old) |
Storage & Hydraulics
| NID Storage | 18 acre-ft |
| Max Storage | 9 acre-ft |
| Normal Storage | 18 acre-ft |
| Surface Area | 9 acres |
| Max Discharge | 131 cfs |
Ownership & Safety
| Purpose | Fire Protection, Stock, Or Small Fish Pond |
| Owner | DOI BLM |
| Owner Type | Federal |
| Hazard Classification | Low |
| Condition Assessment | Poor |
| Last Inspection | 09/24/2020 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | OR00703 |
| Federal ID | OR00703 |
| More Info | State Dam Safety Program |