Upper Twin Lakes Dam
New Jersey — Passaic County — Irish Brook
Location
| State | New Jersey |
| County | Passaic |
| River | Irish Brook |
| Coordinates | 41.01700, -74.30148 |
Physical Characteristics
| NID Height | 7 ft |
| Dam Height | 7 ft |
| Dam Length | 270 ft |
| NID Storage | 61 acre-ft |
| Max Storage | — |
| Surface Area | 20 acres |
Safety Classification
| Hazard Potential | Low |
| Condition Assessment | Poor |
| EAP Status | Yes |
| Last Inspection | August 17, 2018 |
| Inspection Frequency | 4 |
Dam Information
| Year Completed | — |
| Primary Purpose | Recreation |
| Dam Type | Earth |
| Owner Type | Private |
| Owner | Tilicon New York, Inc. |
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.