Frd No 3-1, also known as Upper Verdigris WS Dam 3 1, is a vital structure located in Lyon County, Kansas, owned by the local government and regulated by the Kansas Department of Agriculture. Built in 1963 by the USDA NRCS, this earth dam stands at a height of 38 feet and serves the primary purpose of flood risk reduction along Rock Creek. With a maximum storage capacity of 1877 acre-feet and a drainage area of 3.89 square miles, Frd No 3-1 plays a crucial role in protecting the surrounding area from potential flooding events.

The dam, with a structural height of 40 feet and a spillway width of 130 feet, has a significant hazard potential and is assessed to be in fair condition. Despite its age, Frd No 3-1 has a moderate risk rating and undergoes inspections every 5 years to ensure its continued safety and functionality. While it currently does not have outlet gates, the dam's design and construction by the Natural Resources Conservation Service demonstrate a commitment to effective flood risk management and water resource conservation in the region.

For water resource and climate enthusiasts, Frd No 3-1 serves as a notable example of infrastructure designed to mitigate flood risks and protect communities in Kansas. As part of the broader network of dams and reservoirs in the area, this earth dam plays a crucial role in water management and contributes to the overall resilience of the region in the face of changing climate patterns. Its history, design, and operational features make it an intriguing subject for further study and appreciation of the intersection between water resources and environmental stewardship.