Frd No 11 (Site 10-24), also known as Lyons Creek Wjd No 41 Frd No 11, is a local government-owned structure located in Lyona, Kansas. This earth dam was designed by USDA NRCS and completed in 1974 for flood risk reduction purposes along the Lime Creek-TR river or stream. With a height of 36.4 feet and a hydraulic height of 38 feet, this dam has a storage capacity of 520 acre-feet and covers a drainage area of 1.52 square miles.

Despite being classified as low hazard potential, Frd No 11 is subject to state regulation, inspection, and enforcement by the Kansas Department of Agriculture. The dam has not been assessed for its condition but is considered to have a moderate risk level. It features an uncontrolled spillway with a width of 40 feet and does not have any outlet gates or associated structures. The last inspection of the dam was conducted in January 2004, and it is not currently covered by an Emergency Action Plan (EAP).

Overall, Frd No 11 serves as a vital infrastructure for flood risk reduction in the region, providing protection to the surrounding area. Its design and construction by the Natural Resources Conservation Service ensure its effectiveness in managing water flow and mitigating potential flood hazards. As climate change continues to impact water resources, structures like Frd No 11 play a crucial role in safeguarding communities and ecosystems against the threats of flooding.