Jm Stuart Station Ash Pond No. 7 is an earth dam located in Adams County, Ohio. It carries a Significant hazard potential classification and has a poor condition assessment.
Dam profile
NID height · 39 ft39 ft tall and 3,150 ft long, taller than 85% 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 Jm Stuart Station Ash Pond No. 7
The primary purpose of Jm Stuart Station Ash Pond No. 7 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 Kingfisher Development LLC (public utility). It impounds the Ohio River - Offstream near Maysville, Ky.
The dam stands 39 feet tall and stretches 3,150 feet across, has a maximum storage capacity of 1,155 acre-feet, and collects water from a drainage area of 0 square miles.
This dam has a significant hazard potential classification, meaning that a failure could cause significant economic damage — flooding roads, bridges, or property downstream — but is not expected to result in loss of life. Its condition is rated poor, meaning the dam has recognized safety deficiencies that require remediation to address risks. The most recent inspection on record was 06/08/2023.
At 39 feet, this dam is taller than 85% of dams nationwide.
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Location
| State | Ohio |
| County | Adams |
| Nearest City | Maysville, Ky |
| River/Stream | Ohio River - Offstream |
| Coordinates | 38.63111, -83.67694 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 39 ft |
| Dam Height | 39 ft |
| Dam Length | 3,150 ft |
Storage & Hydraulics
| NID Storage | 1,155 acre-ft |
| Max Storage | 1,155 acre-ft |
| Drainage Area | 0 sq mi |
Ownership & Safety
| Purpose | Tailings |
| Owner | Kingfisher Development LLC |
| Owner Type | Public Utility |
| Hazard Classification | Significant |
| Condition Assessment | Poor |
| Last Inspection | 06/08/2023 |
| Emergency Action Plan | No |
Identifiers
| NID ID | OH03181 |
| Federal ID | OH03181 |
| More Info | State Dam Safety Program |