Cow Creek
Cow Creek is a dam located in Elmore County, Idaho, built in 1915. It carries a Low hazard potential classification and has a fair condition assessment.
About Cow Creek
The primary purpose of Cow Creek is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is private-owned. It impounds the Cow Creek Camas Creek.
The dam stands 34 feet tall and stretches 1,430 feet across, creates a reservoir covering 50 acres, has a storage capacity of 400 acre-feet, and collects water from a drainage area of 4 square miles. Completed in 1915, 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. Its condition is rated fair — the dam has minor deficiencies that are being addressed or do not pose an immediate safety threat. The most recent inspection on record was 05/21/2019.
At 34 feet, this dam is taller than 80% of dams nationwide.
Search for dams near your address to see all dams in your area with hazard classifications and safety data.
Location
| State | Idaho |
| County | Elmore |
| River/Stream | Cow Creek Camas Creek |
| Coordinates | 43.34210, -115.09260 |
Physical Characteristics
| NID Height | 34 ft |
| Dam Height | 34 ft |
| Dam Length | 1,430 ft |
| Year Completed | 1915 (111 years old) |
Storage & Hydraulics
| NID Storage | 400 acre-ft |
| Normal Storage | 400 acre-ft |
| Surface Area | 50 acres |
| Drainage Area | 4 sq mi |
| Max Discharge | 897 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Irrigation |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Fair |
| Last Inspection | 05/21/2019 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | ID00023 |
| Federal ID | ID00023 |
| More Info | State Dam Safety Program |