Duhernal Dam
Significant HazardPoor ConditionEmergency Action Plan: Yes
Location
| State | New Jersey |
| County | Middlesex |
| Nearest City | Old Bridge |
| River/Stream | South River |
| Coordinates | 40.40658, -74.36862 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 13 ft |
| Dam Height | 13 ft |
| Dam Length | 878 ft |
| Year Completed | 1939 (87 years old) |
Storage & Hydraulics
| NID Storage | 1,520 acre-ft |
| Max Storage | 1,520 acre-ft |
| Normal Storage | 780 acre-ft |
| Surface Area | 195 acres |
| Drainage Area | 94 sq mi |
| Max Discharge | 9,000 cfs |
Ownership & Safety
| Purpose | Recreation |
| Owner | Borough of Sayreville |
| Owner Type | Local Government |
| Hazard Classification | Significant |
| Condition Assessment | Poor |
| Last Inspection | 03/10/2025 |
| Emergency Action Plan | Yes |