The Little Green Lake Outlet in Green Lake, Wisconsin is a gravity dam completed in 1934 primarily for recreation purposes. With a structural height of 11 feet and a length of 1000 feet, the dam has a normal storage capacity of 500 acre-feet and can discharge up to 75 cubic feet per second through a controlled spillway. The dam is regulated by the Wisconsin Department of Natural Resources and has a low hazard potential with a fair condition assessment as of July 2020.

Located in the Chicago District of the US Army Corps of Engineers, the Little Green Lake Outlet is situated in a picturesque area surrounded by natural beauty. The dam has a very high risk assessment ranking of 1, indicating the importance of regular inspections and maintenance. While the last inspection was conducted in June 2012 with a frequency of 10 years, the dam's emergency action plan (EAP) was last revised in January 2014. Despite the potential risks associated with the dam, its condition remains fair and it continues to provide recreational benefits to the local community.

Climate and water resource enthusiasts will appreciate the unique features of the Little Green Lake Outlet, including its historic significance and the role it plays in managing water levels and drainage in the area. As one of the many dams in Wisconsin regulated by the state, the Little Green Lake Outlet serves as a reminder of the importance of maintaining and managing water resources in a sustainable and responsible manner. With its controlled spillway and low hazard potential, the dam stands as a testament to the careful planning and engineering that goes into ensuring the safety and functionality of such structures in the face of changing climate conditions.