Frd No 20, also known as Spillman Creek, is a flood risk reduction dam located in Lincoln, Kansas. Built in 1980 by the USDA NRCS, this earth dam stands at a height of 33.2 feet and spans a length of 1381 feet. With a normal storage capacity of 34.75 acre-feet and a drainage area of 4.76 square miles, this structure plays a crucial role in mitigating flooding in the area.

Managed by the Kansas Department of Agriculture, Frd No 20 is regulated and inspected regularly to ensure its functionality and safety. Although classified as having a low hazard potential, the dam's risk assessment is rated as moderate (3). Despite not having an official condition assessment, the structure continues to serve its primary purpose of flood risk reduction along Timber Creek.

With its uncontrolled spillway and lack of outlet gates, Frd No 20 remains a key component in the water management infrastructure in the region. Its strategic location and design make it a vital asset in protecting the surrounding area from potential flood events. Enthusiasts of water resources and climate resilience will find Frd No 20 a fascinating example of engineering expertise in water management.