Dd No 125, located in Neosho Rapids, Kansas, is a flood risk reduction dam that was completed in 1988 by Miles Engineering. The dam stands at a height of 24 feet and stretches 890 feet in length, with a storage capacity of 212.28 acre-feet. It serves the primary purpose of flood risk reduction, with a low hazard potential and a moderate risk assessment rating.

Managed by the Kansas Department of Agriculture, Dd No 125 is regulated and inspected by state authorities to ensure its structural integrity and effectiveness in flood control. The dam is situated on Allen Creek-TR and is designed as an earth dam with buttress core types. Despite its uncontrolled spillway type, the dam has a maximum discharge capacity of 630 cubic feet per second and covers a drainage area of 0.52 square miles.

Water resource and climate enthusiasts can appreciate the importance of Dd No 125 in mitigating flood risks in Lyon County, Kansas. The dam's strategic location, design features, and state-regulated operations make it a vital infrastructure for flood control and water management in the region. As part of the Kansas City District, Dd No 125 plays a crucial role in safeguarding the community against potential flooding events and ensuring the safety of residents in Neosho Rapids.