Dell Creek, also known as Lake Delton, is a gravity dam located in Sauk, Wisconsin, with a primary purpose of recreation. Built in 1927, the dam has a height of 30 feet and a hydraulic height of 24 feet, with a length of 400 feet and a storage capacity of 1420 acre-feet. The dam sits on Dell Creek and has a drainage area of 80 square miles, with a maximum discharge of 3870 cubic feet per second.

Despite being classified as low hazard potential, Dell Creek poses a very high risk due to its condition assessment being satisfactory. The dam has undergone regular inspections, with the last one in June 2018, and is regulated by the Wisconsin Department of Natural Resources. Emergency action plans are in place, although they have not been updated recently. The dam's spillway is controlled, with a surface area of 267 acres and a maximum storage capacity of 2500 acre-feet.

Overall, Dell Creek serves as a vital water resource for the community, offering recreational opportunities while also posing a potential risk that must be managed effectively. With its historical significance and continued importance in the region, Dell Creek remains a focal point for water resource and climate enthusiasts interested in the intersection of human activity and natural ecosystems.