Frd No 18, also known as Upper Walnut WS Joint District No 33, is a local government-owned dam located in Butler County, Kansas. Built in 1976 by the USDA NRCS, this earth dam serves the primary purpose of flood risk reduction along the Cole Creek-TR stream. With a height of 26 feet and a length of 2020 feet, the dam has a storage capacity of 1182.81 acre-feet and covers a surface area of 26.17 acres. Despite its low hazard potential, the dam is regulated and inspected by the Kansas Department of Agriculture, ensuring its structural integrity and safety.

The dam's spillway is uncontrolled with a width of 40 feet, and it has no outlet gates or associated structures. While the dam is currently in a not rated condition, its risk assessment is moderate, with a risk management plan of level 3 in place. The dam is located in a rural area with a drainage area of 2.31 square miles, providing crucial flood protection to the surrounding community. With its strategic location and design, Frd No 18 plays a vital role in managing water resources and climate-related risks in the region.

Overall, Frd No 18 stands as a testament to effective flood risk reduction infrastructure in Kansas, demonstrating the importance of proper dam maintenance and regulation in protecting communities from potential disasters. As water resource and climate enthusiasts, understanding the significance of structures like Frd No 18 can help us appreciate the efforts made to mitigate the effects of extreme weather events and ensure the safety of our environment and communities.