Halvor #1 is an earth dam located in Phillips County, Montana, built in 1917. It carries a Low hazard potential classification.
Dam profile
NID height · 14 ft14 ft tall and 250 ft long. Height is drawn to scale against a two-story house, about 25 ft; the profile is a generic embankment section and the water level is illustrative.
About Halvor #1
The primary purpose of Halvor #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 Wilfred L Doll (private). It impounds the Tr-four Mile Coulee near Malta.
The dam stands 14 feet tall and stretches 250 feet across, and has a maximum storage capacity of 88 acre-feet. Completed in 1917, 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.
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Location
| State | Montana |
| County | Phillips |
| Nearest City | Malta |
| River/Stream | Tr-four Mile Coulee |
| Coordinates | 48.14400, -108.06960 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 14 ft |
| Dam Height | 14 ft |
| Dam Length | 250 ft |
| Year Completed | 1917 (109 years old) |
Storage & Hydraulics
| NID Storage | 88 acre-ft |
| Max Storage | 88 acre-ft |
| Normal Storage | 55 acre-ft |
Ownership & Safety
| Purpose | Fire Protection, Stock, Or Small Fish Pond |
| Owner | Wilfred L Doll |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MT02951 |
| Federal ID | MT02951 |
| More Info | State Dam Safety Program |