Frd No 23a, located in Matfield Green, Kansas, is a crucial earth dam structure designed by the USDA NRCS in 1993 for flood risk reduction along the South Fork Cottonwood River. With a dam height of 49.5 feet and a storage capacity of 5260 acre-feet, this dam plays a vital role in mitigating flood hazards in the region. The structure is regulated and inspected by the Kansas Department of Agriculture, ensuring its continued effectiveness in protecting the surrounding area.

The dam has a low hazard potential and a moderate risk assessment rating, emphasizing the importance of its maintenance and monitoring. Despite not having outlet gates, Frd No 23a has a spillway width of 140 feet to manage excess water flow during high precipitation events. With a drainage area of 13.33 square miles and a maximum discharge capacity of 6200 cubic feet per second, this dam serves as a critical infrastructure for water resource management in Chase County, Kansas. Water resource and climate enthusiasts will appreciate the strategic design and functionality of Frd No 23a in safeguarding the local community from potential flood risks.