Rafferty #3
Rafferty #3 is an earth dam located in Custer County, Montana, built in 1939. It carries a Low hazard potential classification.
About Rafferty #3
The primary purpose of Rafferty #3 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 June F Rafferty (private). It impounds the Tr-spring Creek near Mizpah.
The dam stands 25 feet tall and stretches 435 feet across, and has a maximum storage capacity of 101 acre-feet. Completed in 1939, 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 | Custer |
| Nearest City | Mizpah |
| River/Stream | Tr-spring Creek |
| Coordinates | 45.88390, -105.33560 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 25 ft |
| Dam Height | 25 ft |
| Dam Length | 435 ft |
| Year Completed | 1939 (87 years old) |
Storage & Hydraulics
| NID Storage | 101 acre-ft |
| Max Storage | 101 acre-ft |
| Normal Storage | 52 acre-ft |
Ownership & Safety
| Purpose | Fire Protection, Stock, Or Small Fish Pond |
| Owner | JUNE F RAFFERTY |
| Owner Type | Private |
| Hazard Classification | Low |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MT01704 |
| Federal ID | MT01704 |
| More Info | State Dam Safety Program |