Frd No 45, also known as Elk River WS Joint District No 47, is a local government-owned dam located in Elk Falls, Kansas. Built in 1977, this earth dam stands at a height of 38 feet and serves the primary purpose of flood risk reduction along the Elk River. With a storage capacity of 708.54 acre-feet, the dam covers a surface area of 13.81 acres and has a drainage area of 2.07 square miles.

Managed by the Kansas Department of Agriculture, Frd No 45 has a low hazard potential and is currently rated as "Not Rated" in terms of condition assessment. The spillway of this dam is uncontrolled with a width of 60 feet, and there are no outlet gates associated with the structure. Despite its moderate risk assessment rating, the dam has not been inspected recently, highlighting the importance of regular maintenance and monitoring to ensure its continued effectiveness in flood risk reduction. For water resource and climate enthusiasts, Frd No 45 serves as a crucial infrastructure in the management of water flow along the Elk River.