Frd No 6-7, also known as Upper Verdigris WS Dam 6 7, is a flood risk reduction structure located in Lyon County, Kansas. Built in 1966 by the USDA NRCS, this earth dam stands at a height of 37 feet and has a hydraulic height of 34 feet. With a storage capacity of 1585 acre-feet, it serves the primary purpose of flood risk reduction along the Moon Branch of the Verdigris River.

Managed by the local government and regulated by the Kansas Department of Agriculture, Frd No 6-7 has a low hazard potential and a moderate risk assessment rating. Despite not having a current condition assessment, the dam is maintained for inspection and enforcement by state agencies. The dam features an uncontrolled spillway with a width of 110 feet, allowing for a maximum discharge of 2137 cubic feet per second to prevent overtopping during heavy rainfall events.

Water resource and climate enthusiasts will find Frd No 6-7 to be an important infrastructure for flood control in the region. With its strategic location and design features, this dam plays a crucial role in protecting surrounding areas from potential flooding disasters. As climate change continues to impact precipitation patterns, structures like Frd No 6-7 become increasingly valuable for managing water resources and mitigating the risks associated with extreme weather events.