Lower East Fork Equalization Basin
Lower East Fork Equalization Basin is an earth dam located in Clermont County, Ohio, built in 1992. It carries a Significant hazard potential classification and has a satisfactory condition assessment.
About Lower East Fork Equalization Basin
The primary purpose of Lower East Fork Equalization Basin 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 Clermont County Water Resources (local government). It impounds the Little Miami River East Fork near Plainville.
The dam stands 20 feet tall and stretches 1,940 feet across, and has a maximum storage capacity of 33 acre-feet. Completed in 1992, the structure is 34 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 satisfactory, indicating no existing or potential dam safety deficiencies are recognized. The most recent inspection on record was 05/14/2024.
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Location
| State | Ohio |
| County | Clermont |
| Nearest City | Plainville |
| River/Stream | Little Miami River East Fork |
| Coordinates | 39.14500, -84.25667 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 20 ft |
| Dam Height | 20 ft |
| Dam Length | 1,940 ft |
| Year Completed | 1992 (34 years old) |
Storage & Hydraulics
| NID Storage | 33 acre-ft |
| Max Storage | 33 acre-ft |
| Max Discharge | 128 cfs |
Ownership & Safety
| Purpose | Tailings |
| Owner | Clermont County Water Resources |
| Owner Type | Local Government |
| Hazard Classification | Significant |
| Condition Assessment | Satisfactory |
| Last Inspection | 05/14/2024 |
| Emergency Action Plan | No |
Identifiers
| NID ID | OH02814 |
| Federal ID | OH02814 |
| More Info | State Dam Safety Program |