Located in Winfield, Kansas, Frd No 15, also known as Rock Creek Watershed Dam 15, is a local government-owned structure designed by USDA SCS. The dam, situated in the Butler County, serves the primary purpose of flood risk reduction along the North Branch Rock Creek-TR. With a dam height of 37 feet and a hydraulic height of 28 feet, it boasts a storage capacity of 552 acre-feet with a normal storage of 39 acre-feet.

The dam, constructed of earth with a buttress core type, spans a length of 915 feet and covers a surface area of 11.24 acres. Although it has a low hazard potential and is currently rated as "Not Rated" in terms of condition assessment, Frd No 15 is regulated and inspected by the KS Dept. of Agriculture. The structure has not undergone any modifications since its last inspection in August 2011 and is not equipped with outlet gates or associated structures.

Despite its moderate risk assessment rating, Frd No 15 does not have an Emergency Action Plan in place nor does it meet certain guidelines for risk management. With an uncontrolled spillway type and a spillway width of 40 feet, the dam poses a moderate risk (3) to the surrounding area in case of a potential breach. As water resource and climate enthusiasts, the monitoring and maintenance of this critical infrastructure are essential to ensure the safety and protection of the community and environment it serves.