Located in Elk City, Kansas, Frd No 4 is a local government-owned earth dam designed by the USDA NRCS and completed in 1980 for the primary purpose of flood risk reduction on the Middle Duck Creek-TR. This dam stands at a height of 34.3 feet, with a length of 1593 feet, and a storage capacity of 888.42 acre-feet. With a low hazard potential and a moderate risk assessment rating, Frd No 4 is regulated and permitted by the Kansas Department of Agriculture, ensuring its safety and compliance with state standards.

Despite being classified as "Not Rated" in terms of its condition assessment, Frd No 4 is subject to state inspections, with the last one conducted in July 2007. The dam features an uncontrolled spillway with a width of 40 feet and has no outlet gates or associated locks. With its location in Wilson County, Kansas, and within the Kansas City District, Frd No 4 serves an important role in managing flood risks and protecting the surrounding area from potential inundation, demonstrating the collaborative efforts between local and state agencies in ensuring water resource management and climate resilience in the region.