Dd No 122, located in Lyon County, Kansas, is a key structure for flood risk reduction along Dow Creek-TR. Built in 1995, this earth dam stands at a height of 24.5 feet and has a length of 1140 feet, providing a storage capacity of 301 acre-feet. With a normal storage of 27.73 acre-feet and a drainage area of 0.91 square miles, Dd No 122 plays a crucial role in controlling debris and reducing flood risks in the region.

Owned by the local government and regulated by the Kansas Department of Agriculture, Dd No 122 is classified as a low hazard potential dam with a moderate risk assessment score of 3. Despite not being rated for its condition, the dam has not undergone any modifications since its completion. The spillway, designed as uncontrolled with a width of 60 feet, has a maximum discharge capacity of 1100 cubic feet per second, ensuring efficient water management during peak flow events.

Water resource and climate enthusiasts will find Dd No 122's design and functionality intriguing, especially in the context of flood risk reduction and debris control. Situated in Emporia, Kansas, this dam serves as a vital infrastructure for managing water flow along Dow Creek-TR. With its low hazard potential and moderate risk assessment, Dd No 122 stands as a testament to effective water resource management practices in the region.