Millston, located in Jackson, Wisconsin, is home to a dam on Wyman Creek that serves primarily for recreational purposes. Built in 1873, this earth dam stands at a height of 26 feet and spans 700 feet in length, with a storage capacity of 440 acre-feet. The dam's spillway is uncontrolled, and its hazard potential is rated as low, with a fair condition assessment as of May 2020.

Despite its age, Millston Dam remains regulated and inspected by the Wisconsin Department of Natural Resources, ensuring its continued safety and functionality. The dam's risk assessment is rated as moderate, with a moderate risk score of 3. With a drainage area of 9.1 square miles and a maximum discharge of 1,126 cubic feet per second, the dam plays a crucial role in managing water resources in the area while providing recreational opportunities for locals and visitors alike. Climate and water resource enthusiasts would find Millston Dam to be an interesting case study in the management and maintenance of historic infrastructure in a changing environment.