Located in Delia, Kansas, Frd No 4 is a vital flood risk reduction structure built in 1991 by the USDA NRCS. This earth dam stands at a height of 39 feet, with a length of 1975 feet, providing a storage capacity of 4058 acre-feet to protect the surrounding area from potential flooding along the Little Cross Creek.

Managed by the Kansas Department of Agriculture, Frd No 4 is considered to have a significant hazard potential and is inspected every five years to ensure its satisfactory condition. With a normal storage capacity of 318 acre-feet and a drainage area of 10.93 square miles, this structure plays a crucial role in mitigating flood risks in the region.

Although the dam has no outlet gates, its uncontrolled spillway with a width of 350 feet helps regulate water levels during times of high discharge. With its moderate risk assessment rating and efficient risk management measures in place, Frd No 4 serves as an essential infrastructure for water resource and climate enthusiasts in the area.