J. Seward Johnson Dam
New Jersey — Hunterdon County — Cold Brook
Location
| State | New Jersey |
| County | Hunterdon |
| River | Cold Brook |
| Coordinates | 40.68798, -74.75342 |
Physical Characteristics
| NID Height | 24 ft |
| Dam Height | 24 ft |
| Dam Length | 1,150 ft |
| NID Storage | 50 acre-ft |
| Max Storage | — |
| Surface Area | 6 acres |
Safety Classification
| Hazard Potential | Low |
| Condition Assessment | Poor |
| EAP Status | Yes |
| Last Inspection | March 11, 2021 |
| Inspection Frequency | 4 |
Dam Information
| Year Completed | 1967 |
| Primary Purpose | Irrigation |
| Dam Type | Earth |
| Owner Type | Private |
| Owner | James Loring Johnson |
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.