Lake Shawnee, also known as Shawnee County Dam, is a picturesque reservoir located in Topeka, Kansas. Owned by the local government, this dam on Deer Creek was designed by Shawnee County Engineer and completed in 1937 for the primary purpose of recreation. With a structural height of 76 feet and a hydraulic height of 58 feet, the dam stands as a significant water resource in the region.

Boasting a normal storage capacity of 7500 acre-feet and a maximum storage of 11400 acre-feet, Lake Shawnee covers a surface area of 500 acres and serves as a popular recreational spot for locals and tourists alike. The dam, classified as an earth dam with buttress core, spans a length of 2200 feet and has a spillway width of 200 feet. Despite its high hazard potential, the dam's condition is assessed as fair, with the last inspection conducted in April 2019.

Located within the Kansas City District, Lake Shawnee not only provides a serene setting for outdoor activities but also plays a crucial role in water management in the region. With its rich history and significant impact on the local community, this dam serves as a vital asset for water resource and climate enthusiasts interested in exploring the intersection of engineering, recreation, and environmental conservation.