Located in the Walnut Creek Watershed in Padonia, Kansas, Frd No M-4, also known as Walnut Creek Watershed Dam M 4, serves as a crucial structure for flood risk reduction in the area. Built in 1966 by the USDA NRCS, this earth-type dam stands at a height of 33 feet and has a capacity of 242.75 acre-feet to manage the flow of Mulberry Creek-TR. With a spillway width of 40 feet and a maximum discharge capacity of 355 cubic feet per second, Frd No M-4 plays a vital role in protecting the surrounding community from potential flooding events.

Despite being classified as having a low hazard potential, Frd No M-4 is regularly inspected and regulated by the Kansas Department of Agriculture to ensure its structural integrity and functionality. The dam's primary purpose of flood risk reduction is reflected in its design and operational features, including an uncontrolled spillway and a drainage area of 0.73 square miles. With a moderate risk assessment rating, Frd No M-4 is equipped to handle potential emergencies, although its current condition assessment is listed as "Not Rated." Overall, this dam serves as a key component of water resource management in the region, highlighting the importance of infrastructure in mitigating the impacts of climate variability on local communities.