Billy Creek
Billy Creek is a dam located in Lemhi County, Idaho, built in 1916. It carries a Low hazard potential classification and has a poor condition assessment.
About Billy Creek
The primary purpose of Billy 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 Billy Creek Salmon River near Salmon.
The dam stands 16 feet tall and stretches 1,520 feet across, creates a reservoir covering 16 acres, has a storage capacity of 75 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1916, 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 poor, meaning the dam has recognized safety deficiencies that require remediation to address risks. The most recent inspection on record was 09/14/2016.
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Location
| State | Idaho |
| County | Lemhi |
| Nearest City | Salmon |
| River/Stream | Billy Creek Salmon River |
| Coordinates | 45.14360, -113.94660 |
Physical Characteristics
| NID Height | 16 ft |
| Dam Height | 16 ft |
| Dam Length | 1,520 ft |
| Year Completed | 1916 (110 years old) |
Storage & Hydraulics
| NID Storage | 75 acre-ft |
| Normal Storage | 75 acre-ft |
| Surface Area | 16 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 32 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Irrigation |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Poor |
| Last Inspection | 09/14/2016 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | ID00143 |
| Federal ID | ID00143 |
| More Info | State Dam Safety Program |