Oak Street is a hydroelectric dam located in Baraboo, Wisconsin, that was completed in 1929. With a gravity dam type and a height of 14 feet, Oak Street serves multiple purposes including hydroelectric power generation and recreation. The dam has a storage capacity of 200 acre-feet and a normal storage of 60 acre-feet, covering a surface area of 16 acres and draining a watershed of 564 square miles.

Despite its age, Oak Street remains a significant water resource infrastructure with a moderate risk assessment. The dam has a spillway type of uncontrolled and a maximum discharge capacity of 7,400 cubic feet per second. While the condition assessment is currently not rated, the dam is regulated, permitted, inspected, and enforced by the Wisconsin Department of Natural Resources, showcasing the state's commitment to ensuring the safety and functionality of this important water resource. Enthusiasts of water resources and climate will appreciate Oak Street's historical significance and ongoing role in providing renewable energy and recreational opportunities in the region.