Hidden Lake Dam
Hidden Lake Dam is an earth dam located in Hocking County, Ohio, built in 1957. It carries a Significant hazard potential classification and has a satisfactory condition assessment.
About Hidden Lake Dam
The primary purpose of Hidden Lake Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Jeff Hesler (private). It impounds the Tributary To Blackjack Branch near Blackjack.
The dam stands 28 feet tall and stretches 287 feet across, creates a reservoir covering 3 acres, has a maximum storage capacity of 53 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1957, 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 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 11/14/2022.
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Location
| State | Ohio |
| County | Hocking |
| Nearest City | Blackjack |
| River/Stream | Tributary To Blackjack Branch |
| Coordinates | 39.46194, -82.49083 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 28 ft |
| Dam Height | 28 ft |
| Dam Length | 287 ft |
| Year Completed | 1957 (69 years old) |
Storage & Hydraulics
| NID Storage | 53 acre-ft |
| Max Storage | 53 acre-ft |
| Normal Storage | 20 acre-ft |
| Surface Area | 3 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 605 cfs |
Ownership & Safety
| Purpose | Recreation |
| Owner | Jeff Hesler |
| Owner Type | Private |
| Hazard Classification | Significant |
| Condition Assessment | Satisfactory |
| Last Inspection | 11/14/2022 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | OH00248 |
| Federal ID | OH00248 |
| More Info | State Dam Safety Program |