Dd No 111, located in Neosho Rapids, Kansas, is a local government-owned earth dam with a primary purpose of flood risk reduction. Constructed by the USDA NRCS, this dam stands at 26 feet high and stretches 1400 feet in length, with a storage capacity of 348.8 acre-feet. With a normal storage of 23.4 acre-feet and a drainage area of 0.86 square miles, Dd No 111 plays a crucial role in managing water flow and mitigating flood risks in the area.

Managed by the Kansas Dept. of Agriculture, Dd No 111 is regulated, permitted, inspected, and enforced by the state authorities. The dam has a significant hazard potential, with a fair condition assessment as of the last inspection in April 2017. Despite its moderate risk level, Dd No 111 serves as a vital infrastructure for flood protection, with a spillway width of 60 feet and a maximum discharge capacity of 1550 cubic feet per second. Water resource and climate enthusiasts can appreciate the engineering and regulatory efforts put into maintaining the functionality and safety of Dd No 111 to protect the surrounding community and environment from potential flood events.