Nile Stone Slurry Impoundment
Nile Stone Slurry Impoundment is an earth dam located in Mingo County, West Virginia, built in 1993. It carries a High hazard potential classification.
About Nile Stone Slurry Impoundment
Nile Stone Slurry Impoundment is a dam in Mingo, West Virginia. The dam is owned by Lcc West Virginia (private). It impounds the Conley Fork near Thacker.
The dam stands 272 feet tall and stretches 1,440 feet across, creates a reservoir covering 27 acres, has a maximum storage capacity of 1,705 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1993, the structure is 33 years old.
This dam carries a high hazard potential classification, which means that a failure or uncontrolled release of water would likely cause loss of human life. This classification reflects the consequences of failure, not the likelihood — it indicates that people live or work in the area downstream. Notably, no emergency action plan is currently on file for this high-hazard dam.
At 272 feet, this dam is taller than 99% of all dams in the United States.
Living Downstream
If you live or work downstream of this dam, consider taking these steps: learn your local evacuation routes, check whether your county emergency management office has a dam failure inundation map, and sign up for local emergency alerts. The West Virginia dam safety program can provide more specific information about emergency planning for this structure.
Search for dams near your address to see all dams in your area with hazard classifications and safety data.
Location
| State | West Virginia |
| County | Mingo |
| Nearest City | Thacker |
| River/Stream | Conley Fork |
| Coordinates | 37.59500, -82.07444 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 272 ft |
| Dam Height | 272 ft |
| Dam Length | 1,440 ft |
| Year Completed | 1993 (33 years old) |
Storage & Hydraulics
| NID Storage | 1,705 acre-ft |
| Max Storage | 1,705 acre-ft |
| Normal Storage | 1,500 acre-ft |
| Surface Area | 27 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 4,560 cfs |
Ownership & Safety
| Purpose | Other |
| Owner | LCC WEST VIRGINIA |
| Owner Type | Private |
| Hazard Classification | High |
| Condition Assessment | Not Rated |
| Emergency Action Plan | No |
Identifiers
| NID ID | WV05918 |
| Federal ID | WV05918 |
| More Info | State Dam Safety Program |