Frd No 11, also known as Rock Creek Watershed Dam 11, is a local government-owned structure located in Butler County, Kansas. Completed in 1968 by the USDA NRCS, this earth dam stands at a height of 36 feet and serves the primary purpose of flood risk reduction along the North Branch Rock Creek-TR. With a normal storage capacity of 25 acre-feet and a maximum discharge of 235 cubic feet per second, Frd No 11 plays a crucial role in managing water flow in the area.

Managed by the Kansas Department of Agriculture, Frd No 11 is regulated, inspected, and enforced by state authorities to ensure its structural integrity and safety for surrounding communities. With a low hazard potential and a moderate risk assessment rating, this dam provides essential flood protection while also serving as a valuable resource for water management in the region. Despite its relatively small drainage area of 0.87 square miles, Frd No 11 plays a significant role in mitigating flood risks and safeguarding the local ecosystem.

Though not rated for condition assessment, this dam is a key component of the local water infrastructure, contributing to the overall resilience of the area against potential water-related disasters. With its controlled spillway and lack of outlet gates, Frd No 11 represents a vital piece of the water resource network in Butler County, highlighting the importance of effective dam management and maintenance for climate resilience and water security in the region.