Clinton Mills Dike
Clinton Mills Dike is an earth dam located in Hunterdon County, New Jersey. It carries a Significant hazard potential classification and has a satisfactory condition assessment.
About Clinton Mills Dike
The primary purpose of Clinton Mills Dike 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 Hunterdon County Art Center (private). It impounds the South Branch Raritan River.
The dam stands 8 feet tall and stretches 320 feet across, creates a reservoir covering 10 acres, has a storage capacity of 21 acre-feet, and collects water from a drainage area of 111 square miles.
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 03/21/2024.
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Location
| State | New Jersey |
| County | Hunterdon |
| River/Stream | South Branch Raritan River |
| Coordinates | 40.63700, -74.91208 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 8 ft |
| Dam Height | 8 ft |
| Dam Length | 320 ft |
Storage & Hydraulics
| NID Storage | 21 acre-ft |
| Normal Storage | 21 acre-ft |
| Surface Area | 10 acres |
| Drainage Area | 111 sq mi |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | Hunterdon County Art Center |
| Owner Type | Private |
| Hazard Classification | Significant |
| Condition Assessment | Satisfactory |
| Last Inspection | 03/21/2024 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | NJ00564 |
| Federal ID | NJ00564 |
| More Info | State Dam Safety Program |