Frd No 38, also known as Big Caney WS 38, is a flood risk reduction structure located in Grenola, Kansas along the Caney River. This earth dam, with a structural height of 37 feet and a length of 735 feet, was completed in 1965 and serves the primary purpose of flood risk reduction. With a low hazard potential and a moderate risk assessment rating, Frd No 38 has a normal storage capacity of 56 acre-feet and a maximum discharge of 707 cubic feet per second.

Managed by local government authorities and regulated by the Kansas Department of Agriculture, Frd No 38 has a spillway width of 40 feet and no outlet gates. Despite not being rated for condition assessment, this dam has not undergone any recent modifications and is not considered a high-risk structure. The surrounding area has a surface area of 9.35 acres and a drainage area of 1.2 square miles, making it an essential component of the flood control infrastructure in the region.

For water resource and climate enthusiasts, Frd No 38 represents a critical piece of infrastructure in the management of flood risks along the Caney River in Kansas. With its strategic location, adequate storage capacity, and low hazard potential, this earth dam serves as a vital protective barrier against potential flooding events, contributing to the overall resilience of the local community and environment.