R 1 Dam is an earth dam located in Choctaw County, Mississippi, built in 1999. It carries a Low hazard potential classification.
Dam profile
NID height · 36 ft36 ft tall and 1,535 ft long, taller than 82% 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 R 1 Dam
The primary purpose of R 1 Dam is tailings. Tailings dams contain waste material from mining operations — typically a slurry of finely ground rock left over after valuable minerals have been extracted. These structures require ongoing monitoring because tailings can contain heavy metals and other contaminants. The dam is owned by Mississippi Lignite Mining Co. (private). It impounds the Little Bywy Creek.
The dam stands 36 feet tall and stretches 1,535 feet across, creates a reservoir covering 76 acres, has a maximum storage capacity of 1,710 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1999, the structure is 27 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 36 feet, this dam is taller than 82% of dams nationwide.
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Location
| State | Mississippi |
| County | Choctaw |
| River/Stream | Little Bywy Creek |
| Coordinates | 33.37169, -89.24039 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 36 ft |
| Dam Height | 36 ft |
| Dam Length | 1,535 ft |
| Year Completed | 1999 (27 years old) |
Storage & Hydraulics
| NID Storage | 1,710 acre-ft |
| Max Storage | 1,710 acre-ft |
| Normal Storage | 705 acre-ft |
| Surface Area | 76 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 2,357 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Tailings |
| Owner | Mississippi Lignite Mining Co. |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MS03543 |
| Federal ID | MS03543 |
| More Info | State Dam Safety Program |