Lake Le-Aqua-Na Dam, located in Lena, Illinois, is a state-owned structure managed by the Illinois Department of Conservation. Completed in 1955, this Earth-type dam stands at 44 feet high and spans 680 feet across Waddams Creek. With a primary purpose of recreation, the dam provides a picturesque setting for outdoor enthusiasts to enjoy activities such as fishing and boating on its 47-acre surface area.

The dam has a storage capacity of 1,013 acre-feet and a drainage area of 3.7 square miles. It features an uncontrolled spillway with a width of 67 feet and a maximum discharge rate of 3,971 cubic feet per second. Although it has a significant hazard potential, its risk assessment is moderate. The dam's condition assessment is currently unavailable, but regular inspections are conducted every three years to ensure its structural integrity and safety.

Despite its age, Lake Le-Aqua-Na Dam continues to be a popular destination for water resource and climate enthusiasts seeking to experience the beauty of nature in Stephenson County, Illinois. Its scenic surroundings and recreational opportunities make it a valuable asset for the local community and a must-visit location for those interested in water resource management and climate conservation.