Spring Lake in Jefferson, Wisconsin, is a gravity dam completed in 1844 primarily for recreation purposes. With a height of 17 feet and a hydraulic height of 14 feet, it provides a storage capacity of 560 acre-feet and covers a surface area of 104 acres. The dam, located on the Scuppernong River, has a drainage area of 29.2 square miles and a maximum discharge of 654 cubic feet per second.

Despite being in fair condition as of the last assessment in 2019, Spring Lake has a high hazard potential due to its age and the surrounding risk of inundation. The dam is under state regulation and inspection by the Wisconsin Department of Natural Resources, ensuring proper maintenance and enforcement measures are in place. The area offers recreational opportunities and serves as a vital water resource within the region.

Spring Lake's historical significance, coupled with its importance in water management and climate resilience efforts, make it a focal point for enthusiasts interested in sustainable water resource development and conservation practices. While facing challenges associated with its age and hazard potential, the dam continues to be a vital asset for the community, showcasing the intersection of recreation, environmental stewardship, and public safety.