Staff #1
Staff #1 is an earth dam located in Blaine County, Montana, built in 1910. It carries a Significant hazard potential classification.
About Staff #1
The primary purpose of Staff #1 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 William E Williamson (private). It impounds the Clear Creek Offstream near Lohman.
The dam stands 10 feet tall and stretches 660 feet across, and has a maximum storage capacity of 217 acre-feet. Completed in 1910, the structure is over a century old.
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.
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Location
| State | Montana |
| County | Blaine |
| Nearest City | Lohman |
| River/Stream | Clear Creek Offstream |
| Coordinates | 48.47500, -109.42070 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 10 ft |
| Dam Height | 10 ft |
| Dam Length | 660 ft |
| Year Completed | 1910 (116 years old) |
Storage & Hydraulics
| NID Storage | 217 acre-ft |
| Max Storage | 217 acre-ft |
| Normal Storage | 111 acre-ft |
Ownership & Safety
| Purpose | Fire Protection, Stock, Or Small Fish Pond |
| Owner | WILLIAM E WILLIAMSON |
| Owner Type | Private |
| Hazard Classification | Significant |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MT00028 |
| Federal ID | MT00028 |
| More Info | State Dam Safety Program |