Thav is an earth dam located in Teton County, Montana, built in 1940. It carries a Low hazard potential classification.
Dam profile
NID height · 15 ft15 ft tall and 175 ft long. Height is drawn to scale against a two-story house, about 25 ft; the profile is a generic embankment section and the water level is illustrative.
About Thav
The primary purpose of Thav 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 Robert Lehnerz (private). It impounds the Tr-muddy Creek near Vaughn.
The dam stands 15 feet tall and stretches 175 feet across, and has a maximum storage capacity of 67 acre-feet. Completed in 1940, 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 | Teton |
| Nearest City | Vaughn |
| River/Stream | Tr-muddy Creek |
| Coordinates | 47.77190, -111.75850 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 15 ft |
| Dam Height | 15 ft |
| Dam Length | 175 ft |
| Year Completed | 1940 (86 years old) |
Storage & Hydraulics
| NID Storage | 67 acre-ft |
| Max Storage | 67 acre-ft |
| Normal Storage | 20 acre-ft |
Ownership & Safety
| Purpose | Fire Protection, Stock, Or Small Fish Pond |
| Owner | Robert Lehnerz |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MT03392 |
| Federal ID | MT03392 |
| More Info | State Dam Safety Program |