Duhernal Dam
New Jersey — Middlesex County — South River
Location
| State | New Jersey |
| County | Middlesex |
| River | South River |
| Coordinates | 40.40658, -74.36862 |
Physical Characteristics
| NID Height | 13 ft |
| Dam Height | 13 ft |
| Dam Length | 878 ft |
| NID Storage | 1,520 acre-ft |
| Max Storage | 1,520 acre-ft |
| Surface Area | 195 acres |
Safety Classification
| Hazard Potential | Significant |
| Condition Assessment | Poor |
| EAP Status | Yes |
| Last Inspection | March 10, 2025 |
| Inspection Frequency | 2 |
Dam Information
| Year Completed | 1939 |
| Primary Purpose | Recreation |
| Dam Type | Earth |
| Owner Type | Local Government |
| Owner | Borough of Sayreville |
Location Map
About This Dam Record
Dam safety data is maintained by the Army Corps of Engineers National Inventory of Dams (NID). High-hazard dams are those where failure could cause loss of life or major property damage downstream.