Helmetta Dam
New Jersey — Middlesex County — Manalapan Brook
Location
| State | New Jersey |
| County | Middlesex |
| River | Manalapan Brook |
| Coordinates | 40.37697, -74.42775 |
Physical Characteristics
| NID Height | 7 ft |
| Dam Height | 7 ft |
| Dam Length | 2,000 ft |
| NID Storage | 64 acre-ft |
| Max Storage | — |
| Surface Area | 50 acres |
Safety Classification
| Hazard Potential | Significant |
| Condition Assessment | Satisfactory |
| EAP Status | Yes |
| Last Inspection | September 9, 2024 |
| Inspection Frequency | 2 |
Dam Information
| Year Completed | — |
| Primary Purpose | Recreation |
| Dam Type | Earth |
| Owner Type | Local Government |
| Owner | County of Middlesex, Engineering Department |
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.