Frd No 41-A, also known as Big Caney WS Dam 41-A, is a significant earth dam located in Grenola, Kansas along Corum Creek. Built in 1968 by USDA NRCS, this dam serves the primary purpose of flood risk reduction in the region. Standing at a structural height of 37 feet and a hydraulic height of 34 feet, the dam has a capacity to store 3097.8 acre-feet of water and covers a surface area of 34.01 acres.

Owned by the local government and regulated by the Kansas Department of Agriculture, Frd No 41-A is inspected every 5 years to ensure its fair condition and significant hazard potential is managed effectively. The dam features an uncontrolled spillway with a width of 400 feet and no outlet gates. While the risk assessment categorizes it as moderate, the dam's condition assessment remains fair, highlighting the importance of ongoing monitoring and risk management measures to safeguard against potential emergencies and ensure the safety of the surrounding community.

With its close proximity to the community and critical role in flood risk reduction, Frd No 41-A stands as a vital infrastructure in Elk County, Kansas. As climate change continues to impact water resources and weather patterns, the proper maintenance and regulation of this dam will be essential to mitigate risks and protect the area from potential flooding events.