Hidden Hill Lake Dam is an earth dam located in Clermont County, Ohio, built in 1943. It carries a Low hazard potential classification and has a poor condition assessment.
Dam profile
NID height · 32 ft32 ft tall and 240 ft long, taller than 74% 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 Hidden Hill Lake Dam
The primary purpose of Hidden Hill Lake Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Strosnider Scott Suc Trustee (private). It impounds the Twelvemile Creek near New Palestine.
The dam stands 32 feet tall and stretches 240 feet across, creates a reservoir covering 7 acres, has a maximum storage capacity of 99 acre-feet, and collects water from a drainage area of 1 square miles. Completed in 1943, the structure is well-established, with more than 75 years of service.
This dam has a low hazard potential classification, meaning that failure would cause minimal damage, limited primarily to the dam owner's property, with no expected 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 05/31/2023.
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Location
| State | Ohio |
| County | Clermont |
| Nearest City | New Palestine |
| River/Stream | Twelvemile Creek |
| Coordinates | 38.95222, -84.18806 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 32 ft |
| Dam Height | 32 ft |
| Dam Length | 240 ft |
| Year Completed | 1943 (83 years old) |
Storage & Hydraulics
| NID Storage | 99 acre-ft |
| Max Storage | 99 acre-ft |
| Normal Storage | 58 acre-ft |
| Surface Area | 7 acres |
| Drainage Area | 1 sq mi |
| Max Discharge | 799 cfs |
Ownership & Safety
| Purpose | Recreation |
| Owner | Strosnider Scott Suc Trustee |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Poor |
| Last Inspection | 05/31/2023 |
| Emergency Action Plan | No |
Identifiers
| NID ID | OH01360 |
| Federal ID | OH01360 |
| More Info | State Dam Safety Program |