Pond R1 is an earth dam located in Big Horn County, Montana, built in 1989. It carries a Low hazard potential classification.
Dam profile
NID height · 40 ft40 ft tall and 1,000 ft long, taller than 86% of U.S. dams with a recorded height. 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 Pond R1
Pond R1 is a dam in Big Horn, Montana. The dam is owned by Decker Coal Company (private). It impounds the Tr-tongue River.
The dam stands 40 feet tall and stretches 1,000 feet across, creates a reservoir covering 176 acres, and has a maximum storage capacity of 124 acre-feet. Completed in 1989, the structure is 37 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.
At 40 feet, this dam is taller than 86% of dams nationwide.
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Location
| State | Montana |
| County | Big Horn |
| Nearest City | None |
| River/Stream | Tr-tongue River |
| Coordinates | 45.07230, -106.80190 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 40 ft |
| Dam Height | 40 ft |
| Dam Length | 1,000 ft |
| Year Completed | 1989 (37 years old) |
Storage & Hydraulics
| NID Storage | 124 acre-ft |
| Max Storage | 124 acre-ft |
| Normal Storage | 98 acre-ft |
| Surface Area | 176 acres |
Ownership & Safety
| Purpose | Other |
| Owner | Decker Coal Company |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MT03784 |
| Federal ID | MT03784 |
| More Info | State Dam Safety Program |