Deerhead Lake Dam
Deerhead Lake Dam is an earth dam located in Beaverhead County, Montana, built in 1929. It carries a Significant hazard potential classification.
About Deerhead Lake Dam
The primary purpose of Deerhead Lake Dam is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by D J Marchesseault (private). It impounds the Bond Creek near Silver Star.
The dam stands 13 feet tall and stretches 141 feet across, creates a reservoir covering 16 acres, has a storage capacity of 144 acre-feet, and collects water from a drainage area of 1 square miles. Completed in 1929, the structure is well-established, with more than 75 years of service.
This dam has a significant hazard potential classification, meaning that a failure could cause significant economic damage — flooding roads, bridges, or property downstream — but is not expected to result in loss of life. The most recent inspection on record was 07/10/2014. That was over 11 years ago.
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Location
| State | Montana |
| County | Beaverhead |
| Nearest City | Silver Star |
| River/Stream | Bond Creek |
| Coordinates | 45.43600, -112.91520 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 13 ft |
| Dam Height | 13 ft |
| Dam Length | 141 ft |
| Year Completed | 1929 (97 years old) |
Storage & Hydraulics
| NID Storage | 144 acre-ft |
| Normal Storage | 144 acre-ft |
| Surface Area | 16 acres |
| Drainage Area | 1 sq mi |
| Max Discharge | 53 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Irrigation |
| Owner | D J MARCHESSEAULT |
| Owner Type | Private |
| Hazard Classification | Significant |
| Last Inspection | 07/10/2014 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MT00819 |
| Federal ID | MT00819 |
| More Info | State Dam Safety Program |