Fish Bones Lake Dam
Fish Bones Lake Dam is an earth dam located in Monroe County, Ohio, built in 2003. It carries a Significant hazard potential classification and has a satisfactory condition assessment.
About Fish Bones Lake Dam
The primary purpose of Fish Bones Lake Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Three Waters, Llc (private). It impounds the Unnamed Tributary To Seneca Fork Of Wills Creek near Senecaville.
The dam stands 51 feet tall and stretches 391 feet across, creates a reservoir covering 4 acres, has a maximum storage capacity of 84 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 2003, the structure is relatively new.
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. An emergency action plan is in place for this dam. The most recent inspection on record was 06/04/2025.
At 51 feet, this dam is taller than 93% of dams nationwide.
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Location
| State | Ohio |
| County | Monroe |
| Nearest City | Senecaville |
| River/Stream | Unnamed Tributary To Seneca Fork Of Wills Creek |
| Coordinates | 39.86639, -81.29750 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 51 ft |
| Dam Height | 51 ft |
| Dam Length | 391 ft |
| Year Completed | 2003 (23 years old) |
Storage & Hydraulics
| NID Storage | 84 acre-ft |
| Max Storage | 84 acre-ft |
| Normal Storage | 48 acre-ft |
| Surface Area | 4 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 993 cfs |
Ownership & Safety
| Purpose | Recreation |
| Owner | Three Waters, LLC |
| Owner Type | Private |
| Hazard Classification | Significant |
| Condition Assessment | Satisfactory |
| Last Inspection | 06/04/2025 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | OH03042 |
| Federal ID | OH03042 |
| More Info | State Dam Safety Program |