Frd No 11, also known as Spillman Creek, is a local government-owned earth dam located in Denmark, Kansas. Completed in 2000, this flood risk reduction structure stands at a height of 38.5 feet with a length of 1050 feet. It serves the primary purpose of flood risk reduction along the North Branch Spillman Creek, with a drainage area of 6.66 square miles and a storage capacity of 2062 acre-feet.

Managed by the Kansas Department of Agriculture, this dam has a low hazard potential and has not been rated for its condition assessment. Despite its low hazard potential, the risk assessment indicates a moderate risk level. The dam has not been inspected since March 2001, and there is no emergency action plan in place. With a controlled spillway width of 100 feet and a maximum discharge capacity of 3373 cubic feet per second, Frd No 11 plays a crucial role in managing floodwaters and protecting the surrounding area from potential inundation events.