Ray T Mantz is a privately owned dam located in Luzerne, Pennsylvania, along the Wapwallopen Creek. Constructed in 1962, this earth dam stands at a height of 13 feet and has a length of 425 feet, serving primarily for recreational purposes. With a storage capacity of 199 acre-feet and a normal storage of 129 acre-feet, the dam covers a surface area of 30 acres and drains an area of 2.3 square miles.

Managed by the Pennsylvania Department of Environmental Protection, Ray T Mantz has a low hazard potential and is currently assessed to be in fair condition. The dam undergoes inspections every five years, with the most recent inspection conducted in December 2020. While no emergency action plan (EAP) has been prepared or updated, the dam meets regulatory guidelines set by the state.

Enthusiasts interested in water resources and climate will find Ray T Mantz to be an intriguing structure due to its recreational purpose, location in the picturesque Dennison Township, and regulation by the Pennsylvania Department of Environmental Protection. With its historical significance dating back to the early 1960s, this dam provides a valuable insight into the management and maintenance of water infrastructure in the region.