Hancock Lake in Oneida, Wisconsin, is a picturesque reservoir owned by the local government and regulated by the Wisconsin Department of Natural Resources. Built in 1930 for recreational purposes, this gravity dam stands at 11 feet tall and spans 50 feet in length, with a storage capacity of 2,600 acre-feet. The lake covers an area of 259 acres and is fed by Little Rice Creek, providing a serene setting for outdoor enthusiasts to enjoy activities like fishing and boating.

Despite its low hazard potential and fair condition assessment, Hancock Lake poses a very high risk due to its location and potential impact on the surrounding area in case of an emergency. The dam has been inspected periodically, with the last assessment conducted in May 2020, and is equipped with a controlled spillway to manage water discharge. While the risk management measures for the lake are not specified, enthusiasts can appreciate the natural beauty of Hancock Lake while being mindful of its importance in maintaining the local water resources and climate resilience.

For water resource and climate enthusiasts, Hancock Lake serves as a valuable recreational asset in Wisconsin, offering a tranquil escape for outdoor activities while also highlighting the importance of responsible dam management. With its historical significance dating back to the early 20th century, this gravity dam continues to provide a source of enjoyment for visitors, showcasing the delicate balance between human development and environmental conservation. As climate change poses new challenges to water resources, Hancock Lake stands as a reminder of the need for sustainable practices to protect our natural ecosystems for future generations to come.