Located on the Maquoketa River in Manchester, Iowa, the Quaker Mills Milldam stands as a historical landmark with a primary purpose of recreation. Constructed in 1922, this gravity dam stands at a height of 20 feet and boasts a storage capacity of 1,257 acre-feet. With a surface area of 125 acres and a drainage area of 159 square miles, this dam offers a picturesque setting for water resource and climate enthusiasts to explore.

Managed by the Iowa Department of Natural Resources, the Quaker Mills Milldam is regulated, inspected, and enforced to ensure its structural integrity and safety. Despite its low hazard potential, the dam is assessed to be in satisfactory condition, providing visitors with a safe and enjoyable recreational experience. With a spillway width of 103 feet and uncontrolled spillway type, the dam maintains a moderate risk level but is equipped with risk management measures to mitigate potential hazards.

For those interested in exploring the intersection of water resources and climate change, the Quaker Mills Milldam offers a unique opportunity to witness a historic structure that continues to serve as a vital part of the local ecosystem. With its scenic location on the Maquoketa River and its commitment to safety and maintenance, this dam is a testament to the importance of responsible water management in the face of changing environmental conditions.