Deweys Mills, located in Hartford, Vermont, is a hydroelectric dam situated on the Ottauquechee River. Built in 1900, this concrete dam stands at a height of 25 feet with a length of 395 feet, providing a storage capacity of 1000 acre-feet. The dam serves as a vital structure for harnessing hydropower in the region, with a primary purpose of hydroelectric generation.

Despite its age, Deweys Mills has a low hazard potential and its condition is currently rated as "Not Rated". The dam is under federal ownership and jurisdiction, with no state regulation or permitting required. The New England District of the US Army Corps of Engineers oversees the operations and maintenance of the dam, ensuring its safe and efficient functioning in generating clean energy for the surrounding community.

Although Deweys Mills has not been inspected since May 2000, it remains a key player in the renewable energy landscape of Vermont. With its historical significance and contribution to sustainable power generation, Deweys Mills stands as a testament to the enduring importance of water resources and climate-conscious infrastructure in the region.