Frd No 1, also known as the Little Walnut Hickory Watershed Dam, is a flood risk reduction structure located in Leon, Kansas. Built in 1966 by the USDA NRCS, this earth dam stands at a height of 28 feet and has a hydraulic height of 38 feet, with a structural height reaching 41 feet. It serves the primary purpose of flood risk reduction for the surrounding area, with a storage capacity of 648 acre-feet and a drainage area of 1.84 square miles.

Managed by the Kansas Department of Agriculture, Frd No 1 is inspected, regulated, and permitted by state agencies to ensure its safety and functionality. Despite being classified as having a low hazard potential and a moderate risk assessment rating, the dam's condition assessment is not rated. With a spillway width of 60 feet and a maximum discharge of 338 cubic feet per second, Frd No 1 plays a crucial role in protecting the community from potential flooding events.

Located in the Butler County of Kansas, Frd No 1 is a vital infrastructure project that demonstrates the collaborative efforts between local government and federal agencies in addressing water resource and climate challenges. As a key component of the flood risk reduction strategy in the area, this dam serves as a critical asset in managing water flow and safeguarding the surrounding environment and communities from the impacts of extreme weather events.