Cavendish is a concrete gravity dam located on the Black River in Windsor, Vermont. Built in 1907, this hydroelectric dam stands at 46 feet tall and has a length of 230 feet. With a storage capacity of 130 acre-feet and a drainage area of 82 square miles, Cavendish serves as an essential source of renewable energy in the region.

Despite its age, Cavendish has a low hazard potential and is currently rated as "Not Rated" in terms of condition assessment. The dam has not undergone any modifications in recent years and last received an inspection in 1997. While it is not state-regulated or permitted, Cavendish continues to operate safely and effectively, providing a valuable contribution to the local energy grid.

As a public utility dam, Cavendish plays a crucial role in harnessing the power of the Black River for hydroelectric purposes. With its unique multi-arch design and rock foundation, this historic structure stands as a testament to Vermont's commitment to sustainable energy sources. For water resource and climate enthusiasts, Cavendish offers a fascinating glimpse into the intersection of technology, nature, and renewable energy production in the beautiful New England landscape.