Eramet Slag Tailings Pond is an earth dam located in Washington County, Ohio, built in 1975. It carries a Significant hazard potential classification and has a poor condition assessment.
Dam profile
NID height · 25 ft25 ft tall and 2,050 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 Eramet Slag Tailings Pond
The primary purpose of Eramet Slag Tailings Pond 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 Eramet Marietta, Inc.. It impounds the Ohio River - Offstream near Briscoe.
The dam stands 25 feet tall and stretches 2,050 feet across, creates a reservoir covering 5 acres, has a maximum storage capacity of 96 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1975, the structure is well into its service life at over 50 years old.
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 11/01/2023.
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Location
| State | Ohio |
| County | Washington |
| Nearest City | Briscoe |
| River/Stream | Ohio River - Offstream |
| Coordinates | 39.36583, -81.52667 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 25 ft |
| Dam Height | 25 ft |
| Dam Length | 2,050 ft |
| Year Completed | 1975 (51 years old) |
Storage & Hydraulics
| NID Storage | 96 acre-ft |
| Max Storage | 96 acre-ft |
| Normal Storage | 64 acre-ft |
| Surface Area | 5 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 218 cfs |
Ownership & Safety
| Purpose | Tailings |
| Owner | Eramet Marietta, Inc. |
| Owner Type | Not Listed |
| Hazard Classification | Significant |
| Condition Assessment | Poor |
| Last Inspection | 11/01/2023 |
| Emergency Action Plan | No |
Identifiers
| NID ID | OH00943 |
| Federal ID | OH00943 |
| More Info | State Dam Safety Program |