Frd No 4, also known as Grant Shanghai Watershed Dam 4, is a local government-owned structure in Kansas that plays a crucial role in flood risk reduction along the West Branch Grant Creek. Built in 1966, this earth dam stands at a height of 32 feet and has a storage capacity of 325.49 acre-feet, serving the primary purpose of flood risk reduction. With a spillway width of 40 feet and a maximum discharge of 620 cubic feet per second, Frd No 4 ensures effective water management during heavy rainfall events.

Located in Chautauqua County, Kansas, Frd No 4 is regulated by the state Department of Agriculture and undergoes regular inspections and enforcement to ensure its structural integrity and functionality. While the dam is classified as having a low hazard potential, it is rated as moderate in terms of risk assessment due to its location and design. Despite its age, Frd No 4 continues to serve its purpose effectively, showcasing the importance of proper maintenance and oversight in managing water resources and adapting to changing climate conditions. For water resource and climate enthusiasts, Frd No 4 serves as a prime example of infrastructure that plays a crucial role in mitigating flood risks and protecting communities in vulnerable areas.