Willow Belt
Willow Belt is an earth dam located in Cascade County, Montana, built in 1951. It carries a Low hazard potential classification.
About Willow Belt
The primary purpose of Willow Belt is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by Nilson Enterprises Inc (private). It impounds the Tr-big Willow Creek near Fort Benton.
The dam stands 10 feet tall and stretches 500 feet across, and has a maximum storage capacity of 79 acre-feet. Completed in 1951, 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 | Cascade |
| Nearest City | Fort Benton |
| River/Stream | Tr-big Willow Creek |
| Coordinates | 47.44180, -110.82980 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 10 ft |
| Dam Height | 10 ft |
| Dam Length | 500 ft |
| Year Completed | 1951 (75 years old) |
Storage & Hydraulics
| NID Storage | 79 acre-ft |
| Max Storage | 79 acre-ft |
| Normal Storage | 10 acre-ft |
Ownership & Safety
| Purpose | Irrigation |
| Owner | NILSON ENTERPRISES INC |
| Owner Type | Private |
| Hazard Classification | Low |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MT03400 |
| Federal ID | MT03400 |
| More Info | State Dam Safety Program |