Untermeyer Dam, located in Pequannock, New Jersey, was completed in 1927 and serves as a vital recreational resource for the surrounding community.
Wind
Humidity
This earth dam stands at a height of 23 feet and spans 340 feet in length, creating a reservoir with a normal storage capacity of 245 acre-feet. The dam is situated on the East Ditch river, contributing to a drainage area of 0.47 square miles and providing a surface area of 16 acres for outdoor activities.
Managed by the local government and regulated by the New Jersey Department of Environmental Protection (NJDEP), Untermeyer Dam is inspected biennially to ensure its structural soundness and safety. Despite its high hazard potential, the dam's condition has been assessed as satisfactory, with emergency action plans in place to mitigate risks and protect nearby residents in case of a dam failure. With Mikie Sherrill representing Congressional District 11, the dam plays a crucial role in water resource management and climate resilience efforts in Morris County.
Overall, Untermeyer Dam stands as a historic landmark that not only provides recreational opportunities but also underscores the importance of proper dam maintenance and emergency preparedness in safeguarding communities against potential hazards. As climate change continues to impact water resources, the management and upkeep of structures like Untermeyer Dam will be crucial in ensuring the safety and well-being of residents in the region.
Year Completed |
1927 |
Dam Length |
340 |
Dam Height |
23 |
River Or Stream |
East Ditch |
Primary Dam Type |
Earth |
Surface Area |
16 |
Drainage Area |
0.47 |
Nid Storage |
245 |
Hazard Potential |
High |
Nid Height |
23 |