Jack of Diamonds is an earth dam located in Carter County, Montana, built in 1959. 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 Jack of Diamonds
The primary purpose of Jack of Diamonds 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 William Ormesher (private). It impounds the Tr-thompson Creek near Lightning Flat Wyoming.
The dam stands 15 feet tall and stretches 175 feet across, and has a maximum storage capacity of 62 acre-feet. Completed in 1959, 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 | Carter |
| Nearest City | Lightning Flat Wyoming |
| River/Stream | Tr-thompson Creek |
| Coordinates | 45.01460, -104.98140 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 15 ft |
| Dam Height | 15 ft |
| Dam Length | 175 ft |
| Year Completed | 1959 (67 years old) |
Storage & Hydraulics
| NID Storage | 62 acre-ft |
| Max Storage | 62 acre-ft |
| Normal Storage | 32 acre-ft |
Ownership & Safety
| Purpose | Fire Protection, Stock, Or Small Fish Pond |
| Owner | William Ormesher |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MT03190 |
| Federal ID | MT03190 |
| More Info | State Dam Safety Program |