Frd No Gs 3a, also known as Walnut Creek Watershed Dam Gs 3a, is a locally owned structure in Brown County, Kansas that serves the primary purpose of flood risk reduction. Built in 1968 by the USDA NRCS, this earth dam stands at a height of 37 feet with a hydraulic height of 34 feet and a length of 585 feet. With a normal storage capacity of 38 acre-feet and a maximum storage of 496.18 acre-feet, this dam plays a crucial role in managing water resources in the Walnut Creek-TR watershed.

Located in Padonia, Kansas, Frd No Gs 3a is regulated by the Kansas Department of Agriculture and is subject to state inspections, enforcement, and permitting. Despite its low hazard potential, the dam is considered to have a moderate risk level of 3, highlighting the importance of ongoing risk management measures. The structure features an uncontrolled spillway with a width of 80 feet and no outlet gates, reflecting its design for flood risk reduction in the region.

Although the condition of Frd No Gs 3a is currently not rated, the dam remains a key component of the local water management infrastructure. With its strategic location in the Walnut Creek-TR watershed and its role in reducing flood risks, this earth dam stands as a testament to the collaborative efforts between local government agencies and the USDA NRCS to protect communities and safeguard water resources in the region.