Frd No 6-3, also known as Upper Verdigris WS Dam 6 3, is a local government-owned dam located in Madison, Lyon County, Kansas. Built in 1966 by the USDA NRCS, this earth-type dam stands at a height of 32 feet and spans a length of 1100 feet. Its primary purpose is flood risk reduction, with a normal storage capacity of 60 acre-feet and a maximum storage of 825.46 acre-feet.

Situated on the Kelly Branch of the Verdigris River, Frd No 6-3 is regulated by the Kansas Department of Agriculture and falls under the jurisdiction of the state. The dam has a low hazard potential and is currently rated as "Not Rated" in terms of condition assessment. Despite its moderate risk level, the dam has not been assigned a DSAC date and lacks updated emergency action plans and inundation maps. Overall, Frd No 6-3 serves as a vital infrastructure for flood risk mitigation in the region, highlighting the importance of proper maintenance and risk management measures for water resource and climate enthusiasts to monitor and support.