Clinton County Tributary No. 4 Dam
Clinton County Tributary No. 4 Dam is an earth dam located in Clinton County, Ohio, built in 1976. It carries a High hazard potential classification and has a satisfactory condition assessment.
About Clinton County Tributary No. 4 Dam
The primary purpose of Clinton County Tributary No. 4 Dam is flood risk reduction. The dam is designed to control downstream flooding by temporarily storing excess water during storms and releasing it at a controlled rate. The dam is owned by Clinton County (local government). It impounds the Tributary To Lytle Creek near Wilmington.
The dam stands 20 feet tall and stretches 624 feet across, has a maximum storage capacity of 220 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1976, the structure is 50 years old.
This dam carries a high hazard potential classification, which means that a failure or uncontrolled release of water would likely cause loss of human life. This classification reflects the consequences of failure, not the likelihood — it indicates that people live or work in the area downstream. 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 05/28/2024.
Living Downstream
If you live or work downstream of this dam, consider taking these steps: learn your local evacuation routes, check whether your county emergency management office has a dam failure inundation map, and sign up for local emergency alerts. The Ohio dam safety program can provide more specific information about emergency planning for this structure.
Search for dams near your address to see all dams in your area with hazard classifications and safety data.
Location
| State | Ohio |
| County | Clinton |
| Nearest City | Wilmington |
| River/Stream | Tributary To Lytle Creek |
| Coordinates | 39.45528, -83.83583 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 20 ft |
| Dam Height | 20 ft |
| Dam Length | 624 ft |
| Year Completed | 1976 (50 years old) |
Storage & Hydraulics
| NID Storage | 220 acre-ft |
| Max Storage | 220 acre-ft |
| Drainage Area | 0 sq mi |
| Max Discharge | 3,372 cfs |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | Clinton County |
| Owner Type | Local Government |
| Hazard Classification | High |
| Condition Assessment | Satisfactory |
| Last Inspection | 05/28/2024 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | OH01013 |
| Federal ID | OH01013 |
| More Info | State Dam Safety Program |