Ashley Lake Dam
Ashley Lake Dam is an earth dam located in Knox County, Ohio, built in 1971. It carries a Significant hazard potential classification and has a fair condition assessment.
About Ashley Lake Dam
The primary purpose of Ashley Lake Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Conrad Miller (private). It impounds the Little Schenck Creek near Monroe Mills.
The dam stands 25 feet tall and stretches 620 feet across, creates a reservoir covering 13 acres, has a maximum storage capacity of 186 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1971, 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 fair — the dam has minor deficiencies that are being addressed or do not pose an immediate safety threat. The most recent inspection on record was 11/05/2024.
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Location
| State | Ohio |
| County | Knox |
| Nearest City | Monroe Mills |
| River/Stream | Little Schenck Creek |
| Coordinates | 40.52889, -82.43556 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 25 ft |
| Dam Height | 25 ft |
| Dam Length | 620 ft |
| Year Completed | 1971 (55 years old) |
Storage & Hydraulics
| NID Storage | 186 acre-ft |
| Max Storage | 186 acre-ft |
| Normal Storage | 86 acre-ft |
| Surface Area | 13 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 3,800 cfs |
Ownership & Safety
| Purpose | Recreation |
| Owner | Conrad Miller |
| Owner Type | Private |
| Hazard Classification | Significant |
| Condition Assessment | Fair |
| Last Inspection | 11/05/2024 |
| Emergency Action Plan | No |
Identifiers
| NID ID | OH00347 |
| Federal ID | OH00347 |
| More Info | State Dam Safety Program |