Chain is a state-owned dam located in Palmer Township, Northampton County, Pennsylvania. It is situated on the Lehigh River and is regulated by the Pennsylvania Department of Environmental Protection. The primary purpose of Chain is for recreation, with a dam height of 20 feet and a length of 700 feet. It has a storage capacity of 1197 acre-feet and covers a surface area of 300 acres, serving as a popular spot for outdoor activities.

Despite being classified as a low hazard potential dam, Chain has been assessed as being in satisfactory condition during its last inspection in November 2020. The dam has a regular inspection frequency of 5 years to ensure its safety and functionality. The surrounding area is at a low risk of inundation, and while an Emergency Action Plan (EAP) is not currently prepared, the dam meets regulatory guidelines for state inspection, enforcement, and permitting.

Located within the Philadelphia District of the US Army Corps of Engineers, Chain is a vital infrastructure for water resource management and recreation in the region. As a stone dam with a buttress core type, it provides essential flood control and water supply benefits to the community. With its impressive storage capacity and recreational opportunities, Chain is a valuable asset in ensuring water resource sustainability and climate resiliency in Pennsylvania.