Delaware WS Joint Dist No. 10 E28, located in Valley Falls, Kansas, is a key flood risk reduction structure designed by the USDA NRCS in 1977. This Earth dam stands at a height of 26 feet and spans 940 feet, providing storage of up to 208 acre-feet for flood control. With a low hazard potential and moderate risk assessment, this structure plays a crucial role in protecting the surrounding area from potential flooding events.

Although primarily serving the purpose of flood risk reduction, Delaware WS Joint Dist No. 10 E28 also offers benefits for fire protection, stock, or small fish pond, recreation, and other purposes. Its uncontrolled spillway system with a width of 100 feet can handle a maximum discharge of 1500 cubic feet per second, ensuring effective water management during heavy rain events. With its location on Tr- Johannes Branch Walnut Cre, this dam contributes to the overall water resource management in Jefferson County, Kansas.

Managed by the Natural Resources Conservation Service, Delaware WS Joint Dist No. 10 E28 stands as a testament to collaborative efforts in water resource management. While its condition assessment is currently unavailable, the structure continues to play a vital role in mitigating flood risks and ensuring the safety and well-being of the local community. For water resource and climate enthusiasts, this dam represents a case study in effective infrastructure design and management for sustainable water resource utilization.