Frd No 41, also known as Elk River WS Joint District No 47, is a flood risk reduction dam located in Elk Falls, Kansas. Constructed in 1978 by the USDA NRCS, this earth dam stands at a height of 49 feet and has a maximum storage capacity of 1873.58 acre-feet. The dam serves the primary purpose of flood risk reduction along Bull Creek and covers a drainage area of 6.13 square miles.

With a spillway width of 100 feet and a hazard potential rated as low, Frd No 41 is a key component in managing water flow in the region. The dam's condition is currently unrated, but its risk assessment is categorized as moderate. Although it lacks certain emergency preparedness measures like an EAP and inundation maps, the dam is under state regulation and inspection by the Kansas Dept. of Agriculture to ensure its structural integrity and safety for the surrounding community. For water resource and climate enthusiasts, Frd No 41 represents a critical infrastructure piece in the local water management system, highlighting the importance of sustainable dam operations and maintenance in safeguarding against flood risks.