Benjamin, H.e. Jr.
Benjamin, H.e. Jr. is an earth dam located in Toole County, Montana, built in 1954. It carries a Low hazard potential classification.
About Benjamin, H.e. Jr.
The primary purpose of Benjamin, H.e. Jr. is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by Harry Wolfe (private). It impounds the Crooked Coulee near Devon.
The dam stands 20 feet tall and stretches 550 feet across, has a maximum storage capacity of 117 acre-feet, and collects water from a drainage area of 14 square miles. Completed in 1954, 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 | Toole |
| Nearest City | Devon |
| River/Stream | Crooked Coulee |
| Coordinates | 48.60950, -111.76110 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 20 ft |
| Dam Height | 20 ft |
| Dam Length | 550 ft |
| Year Completed | 1954 (72 years old) |
Storage & Hydraulics
| NID Storage | 117 acre-ft |
| Max Storage | 117 acre-ft |
| Normal Storage | 50 acre-ft |
| Drainage Area | 14 sq mi |
| Max Discharge | 800 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Irrigation |
| Owner | HARRY WOLFE |
| Owner Type | Private |
| Hazard Classification | Low |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MT00431 |
| Federal ID | MT00431 |
| More Info | State Dam Safety Program |