Dd No A-6 (Tri-Creek) is a flood risk reduction structure located in Neodesha, Kansas, owned by the local government and regulated by the Kansas Department of Agriculture. The dam is situated on Chetopa Creek-TR and serves the primary purpose of flood risk reduction. With a dam height of 20 feet and a storage capacity of 723.04 acre-feet, Dd No A-6 plays a crucial role in mitigating potential flood hazards in the area.

Constructed with an earth core and buttress design, the dam spans a length of 2420 feet and has a spillway width of 60 feet. Despite its low hazard potential, Dd No A-6 is classified as having a moderate risk level (3) and is currently in a not rated condition. The dam does not have a designated emergency action plan in place and lacks updated inundation maps, presenting opportunities for improvement in risk management and emergency preparedness measures. Climate and water resource enthusiasts may find Dd No A-6's location and design details intriguing, as it represents a vital infrastructure piece in the local flood risk reduction efforts.