Hammerhead Lake Dam is an earth dam located in Warren County, Ohio, built in 1955. It carries a Low hazard potential classification and has a satisfactory condition assessment.
Dam profile
NID height · 14 ft14 ft tall and 600 ft long. 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 Hammerhead Lake Dam
The primary purpose of Hammerhead Lake Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Kenneth L Weiss (private). It impounds the Tributary to Little Muddy Creek near South Lebanon.
The dam stands 14 feet tall and stretches 600 feet across, creates a reservoir covering 8 acres, has a maximum storage capacity of 92 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1955, the structure is well into its service life at over 50 years old.
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 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 06/04/2024.
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Location
| State | Ohio |
| County | Warren |
| Nearest City | South Lebanon |
| River/Stream | Tributary to Little Muddy Creek |
| Coordinates | 39.41667, -84.27083 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 14 ft |
| Dam Height | 14 ft |
| Dam Length | 600 ft |
| Year Completed | 1955 (71 years old) |
Storage & Hydraulics
| NID Storage | 92 acre-ft |
| Max Storage | 92 acre-ft |
| Normal Storage | 27 acre-ft |
| Surface Area | 8 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 520 cfs |
Ownership & Safety
| Purpose | Recreation |
| Owner | Kenneth L Weiss |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Satisfactory |
| Last Inspection | 06/04/2024 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | OH00555 |
| Federal ID | OH00555 |
| More Info | State Dam Safety Program |