Located in Lacygne, Kansas, Mattson Dam stands as a testament to the ingenuity of its designer, USDA SCS. Completed in 1975, this private-owned dam serves the primary purpose of flood control along the Jordan Branch-Tr. With a structural height of 40 feet and a buttress core type, Mattson Dam boasts a capacity of 125 acre-feet and a surface area of 8.7 acres.

Despite its low hazard potential, Mattson Dam has not been officially rated for its condition as of yet. The dam's last inspection was conducted in February 2006, with no reported issues. With a spillway width of 20 feet and a drainage area of 0.1 square miles, the dam remains a vital component in managing water resources in Miami County.

For water resource and climate enthusiasts, Mattson Dam presents an intriguing case study in dam engineering and maintenance. As a privately-owned structure with state jurisdiction, the dam plays a crucial role in safeguarding the local area from potential flooding. With its unique design and history of operation, Mattson Dam continues to stand as a symbol of effective water management in the heart of Kansas.