Poison Creek Dam
Poison Creek Dam is a gravity dam located in Grant County, Oregon, built in 1999. It carries a Low hazard potential classification and has a satisfactory condition assessment.
About Poison Creek Dam
The primary purpose of Poison Creek Dam is fish and wildlife pond. The dam creates habitat for fish and wildlife, supporting local ecosystems and potentially serving conservation goals. The dam is owned by Doi Blm (federal). It impounds the Poison Creek near Ranch.
The dam stands 21 feet tall and stretches 290 feet across, creates a reservoir covering 15 acres, has a maximum storage capacity of 187 acre-feet, and collects water from a drainage area of 5 square miles. Completed in 1999, the structure is 27 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 satisfactory, indicating no existing or potential dam safety deficiencies are recognized. The most recent inspection on record was 09/25/2019.
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Location
| State | Oregon |
| County | Grant |
| Nearest City | Ranch |
| River/Stream | Poison Creek |
| Coordinates | 44.01418, -118.91551 |
Physical Characteristics
| Dam Type | Gravity |
| NID Height | 21 ft |
| Dam Length | 290 ft |
| Year Completed | 1999 (27 years old) |
Storage & Hydraulics
| NID Storage | 187 acre-ft |
| Max Storage | 187 acre-ft |
| Normal Storage | 112 acre-ft |
| Surface Area | 15 acres |
| Drainage Area | 5 sq mi |
| Max Discharge | 7,923 cfs |
| Spillway Type | Controlled |
Ownership & Safety
| Purpose | Fish and Wildlife Pond |
| Owner | DOI BLM |
| Owner Type | Federal |
| Hazard Classification | Low |
| Condition Assessment | Satisfactory |
| Last Inspection | 09/25/2019 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | OR03808 |
| Federal ID | OR03808 |
| More Info | State Dam Safety Program |