Lermeny Dam is an earth dam located in Harding County, South Dakota, built in 1903. It carries a Low hazard potential classification.
Dam profile
NID height · 25 ft25 ft tall and 1,000 ft long, taller than 50% 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 Lermeny Dam
The primary purpose of Lermeny Dam 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 George Lermeny (private). It impounds the Coal Creek.
The dam stands 25 feet tall and stretches 1,000 feet across, creates a reservoir covering 25 acres, and has a maximum storage capacity of 320 acre-feet. Completed in 1903, the structure is over a century 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 | South Dakota |
| County | Harding |
| Nearest City | None |
| River/Stream | Coal Creek |
| Coordinates | 45.67499, -103.24332 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 25 ft |
| Dam Height | 25 ft |
| Dam Length | 1,000 ft |
| Year Completed | 1903 (123 years old) |
Storage & Hydraulics
| NID Storage | 320 acre-ft |
| Max Storage | 320 acre-ft |
| Normal Storage | 160 acre-ft |
| Surface Area | 25 acres |
| Max Discharge | 1,350 cfs |
Ownership & Safety
| Purpose | Fire Protection, Stock, Or Small Fish Pond |
| Owner | George Lermeny |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | SD02341 |
| Federal ID | SD02341 |
| More Info | State Dam Safety Program |