Frd No 18, also known as Elk River WS Joint District No 47, is a flood risk reduction structure located in Elk Falls, Kansas. Owned by the local government and regulated by the Kansas Department of Agriculture, this earth dam was completed in 1976 and stands at a height of 70 feet along the South Fork Wildcat Creek. Its primary purpose is flood risk reduction, with a storage capacity of 3953.93 acre-feet and a drainage area of 9.02 square miles.

Managed by the USDA NRCS, Frd No 18 has a low hazard potential and a moderate risk assessment rating. The dam's spillway is uncontrolled with a width of 180 feet, serving a surface area of 43.33 acres. Despite its age, the dam's condition is currently not rated, and there have been no recent inspections recorded. With a structural height of 70 feet and a hydraulic height of 66 feet, Frd No 18 plays a crucial role in mitigating flood risks in the area.

The dam's location in Elk County, Kansas, makes it a vital component of the local water resource infrastructure. While there are no associated structures or outlet gates, Frd No 18 continues to provide essential flood protection for the surrounding community. As water resource and climate enthusiasts, understanding the importance of structures like Frd No 18 is essential for ensuring the sustainable management of our water resources in the face of changing environmental conditions.