Fillenworth Reservoir #1
Fillenworth Reservoir #1 is an earth dam located in McCone County, Montana, built in 1938. It carries a Low hazard potential classification.
About Fillenworth Reservoir #1
The primary purpose of Fillenworth Reservoir #1 is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by Robert Fillenworth (private). It impounds the Tr-mcguire Creek near No Town.
The dam stands 17 feet tall and stretches 220 feet across, and has a maximum storage capacity of 67 acre-feet. Completed in 1938, the structure is well-established, with more than 75 years of service.
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 | McCone |
| Nearest City | No Town |
| River/Stream | Tr-mcguire Creek |
| Coordinates | 47.57000, -105.93600 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 17 ft |
| Dam Height | 17 ft |
| Dam Length | 220 ft |
| Year Completed | 1938 (88 years old) |
Storage & Hydraulics
| NID Storage | 67 acre-ft |
| Max Storage | 67 acre-ft |
| Normal Storage | 30 acre-ft |
Ownership & Safety
| Purpose | Irrigation |
| Owner | ROBERT FILLENWORTH |
| Owner Type | Private |
| Hazard Classification | Low |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MT00515 |
| Federal ID | MT00515 |
| More Info | State Dam Safety Program |