Dd No 108, located in LeRoy, Kansas, is a flood risk reduction structure on the South Big Creek-TR river. Built in 1998 by designer Strobel, Cook, Flatt, this earth dam stands at 20 feet in height and spans 728 feet in length. With a capacity for 145.12 acre-feet of storage and a maximum discharge of 422 cubic feet per second, this dam serves the primary purpose of flood risk reduction in the Coffey County area.

Despite its low hazard potential, the dam has not been rated for its condition and has not undergone inspections since July 1997. However, it continues to serve its purpose effectively, with a moderate risk assessment of 3. The dam's spillway is uncontrolled with a width of 30 feet, and there are no outlet gates or associated structures. The risk management measures and emergency action plans for Dd No 108 remain unspecified, highlighting the need for continued monitoring and maintenance to ensure the safety and effectiveness of this important water resource infrastructure.