Dd No A-3 is a flood risk reduction dam located in Wilson, Kansas, along the Chetopa Creek. Built in 2010, this earth dam stands at a height of 38 feet and spans a length of 1100 feet, providing a storage capacity of 790.6 acre-feet. With a primary purpose of flood risk reduction, Dd No A-3 also serves the functions of debris control and has a spillway width of 100 feet.

Managed by the Kansas Department of Agriculture, Dd No A-3 is regulated, permitted, inspected, and enforced by the state, ensuring its compliance with safety and operational standards. The dam is classified as having a low hazard potential and a moderate risk level, emphasizing the importance of its role in protecting the surrounding area from potential flooding events. Despite not being rated for its condition, Dd No A-3 remains a crucial infrastructure for water resource management in the region.