Dd No 6-9, located in Coffey County, Kansas, is a local government-owned dam designed by King Engineering for flood risk reduction along School Creek. Completed in 2007, this earth dam stands at a height of 35.3 feet and has a length of 3000 feet, providing a normal storage capacity of 257 acre-feet and a maximum storage of 2400 acre-feet. With a surface area of 57.2 acres and a drainage area of 4.7 square miles, Dd No 6-9 plays a crucial role in mitigating flood risks in the region.

The dam, classified as having a significant hazard potential and fair condition assessment, is regulated by the Kansas Department of Agriculture and undergoes inspections every five years. While it has no outlet gates or locks, an uncontrolled spillway with a width of 120 feet is in place to manage excess water flow. Dd No 6-9 is situated within the Kansas City District of the US Army Corps of Engineers and falls under the jurisdiction of Representative Steven C. Watkins, Jr.

Despite its fair condition, the dam poses a moderate risk (level 3) according to a risk assessment. Emergency action plans, inundation maps, and risk management measures for Dd No 6-9 are currently unspecified, highlighting the need for ongoing monitoring and maintenance to ensure the safety and effectiveness of this vital infrastructure for flood protection in Coffey County.