Located in Vliets, Kansas, Frd No 11, also known as Upper Black Vermillion WS Dam 11, is a local government-owned earth dam designed by the USDA NRCS to primarily reduce flood risks along the North Fork Black Vermillion River. Completed in 1971, this dam stands at a height of 29 feet and has a storage capacity of 235 acre-feet. With a fair condition assessment and a high hazard potential, it is regulated and inspected by the Kansas Department of Agriculture.

The dam features an uncontrolled spillway with a width of 100 feet, serving a drainage area of 0.38 square miles. Despite its moderate risk assessment score of 3, Frd No 11 has no associated locks or outlet gates. The last inspection was conducted in April 2020, with a scheduled frequency of every 3 years. While it currently meets regulatory guidelines, there is no available information on the existence of an Emergency Action Plan or Inundation Maps for the dam.

For water resource and climate enthusiasts, Frd No 11 offers a fascinating case study in flood risk reduction infrastructure in the heart of Kansas. With its strategic location and design specifications, this dam plays a crucial role in mitigating potential hazards and safeguarding the surrounding area from the impacts of extreme weather events. As efforts continue to monitor and maintain the dam's integrity, it serves as a reminder of the vital role that sustainable water management practices play in enhancing community resilience in the face of a changing climate.