Wiggins #3
Wiggins #3 is an earth dam located in Petroleum County, Montana, built in 1967. It carries a Low hazard potential classification.
About Wiggins #3
The primary purpose of Wiggins #3 is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by Stanley E Wiggins (private). It impounds the Tr-flatwillow Creek near Mosby.
The dam stands 19 feet tall and stretches 400 feet across, has a maximum storage capacity of 221 acre-feet, and collects water from a drainage area of 8 square miles. Completed in 1967, 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 | Petroleum |
| Nearest City | Mosby |
| River/Stream | Tr-flatwillow Creek |
| Coordinates | 46.81710, -108.33090 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 19 ft |
| Dam Height | 19 ft |
| Dam Length | 400 ft |
| Year Completed | 1967 (59 years old) |
Storage & Hydraulics
| NID Storage | 221 acre-ft |
| Max Storage | 221 acre-ft |
| Normal Storage | 109 acre-ft |
| Drainage Area | 8 sq mi |
| Max Discharge | 500 cfs |
Ownership & Safety
| Purpose | Irrigation |
| Owner | STANLEY E WIGGINS |
| Owner Type | Private |
| Hazard Classification | Low |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MT02182 |
| Federal ID | MT02182 |
| More Info | State Dam Safety Program |