Three Pronged Fork Dam is an earth dam located in Chouteau County, Montana, built in 1965. It carries a Low hazard potential classification.
Dam profile
NID height · 10 ft10 ft tall and 100 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 Three Pronged Fork Dam
The primary purpose of Three Pronged Fork Dam 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 Witt Ranch Co. (private). It impounds the North Fork Dugout Coulee near Loma.
The dam stands 10 feet tall and stretches 100 feet across, and has a maximum storage capacity of 55 acre-feet. Completed in 1965, the structure is well into its service life at over 50 years 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 | Chouteau |
| Nearest City | Loma |
| River/Stream | North Fork Dugout Coulee |
| Coordinates | 48.09450, -111.16510 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 10 ft |
| Dam Height | 10 ft |
| Dam Length | 100 ft |
| Year Completed | 1965 (61 years old) |
Storage & Hydraulics
| NID Storage | 55 acre-ft |
| Max Storage | 55 acre-ft |
| Normal Storage | 12 acre-ft |
Ownership & Safety
| Purpose | Fire Protection, Stock, Or Small Fish Pond |
| Owner | Witt Ranch Co. |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MT03371 |
| Federal ID | MT03371 |
| More Info | State Dam Safety Program |