Green Swamp #4 Dam, located in Passaic, New Jersey, is a concrete structure completed in 1925 primarily used for water supply purposes.
Wind
Humidity
Standing at a height of 65 feet and spanning 300 feet in length, this dam plays a crucial role in storing and regulating water from the Wanaque River. With a normal storage capacity of 81,730 acre-feet and covering a surface area of 2,310 acres, it serves as a vital resource for the region, ensuring a reliable water supply for various uses.
Managed by the New Jersey Department of Environmental Protection (NJDEP), Green Swamp #4 Dam is subject to state regulations, inspections, and enforcement to maintain its structural integrity and safety standards. Despite its high hazard potential, the dam's condition assessment in October 2021 reported it to be satisfactory. Regular inspections are conducted every two years to monitor its performance and address any potential risks or issues promptly. Additionally, emergency action plans are in place to ensure preparedness in case of any unforeseen events or emergencies.
With its strategic location in Wanaque Borough and its critical role in water management, Green Swamp #4 Dam stands as a testament to the importance of sustainable water resource management and climate resilience. As climate change continues to impact water systems and availability, structures like this dam play a vital role in ensuring a stable and secure water supply for the community while mitigating potential risks and hazards associated with extreme weather events.
Year Completed |
1925 |
Dam Length |
300 |
Dam Height |
65 |
River Or Stream |
Wanaque River |
Primary Dam Type |
Concrete |
Surface Area |
2310 |
Drainage Area |
90.4 |
Nid Storage |
81730 |
Hazard Potential |
High |
Nid Height |
65 |