Gs Dd No 8-4 is a locally-owned earth dam located in Brown, Kansas, along the Wolf River. Managed by the Kansas Department of Agriculture, this dam serves the primary purpose of flood risk reduction. With a height of 36.8 feet and a length of 700 feet, Gs Dd No 8-4 has a storage capacity of 188.5 acre-feet and a drainage area of 0.35 square miles.

Despite its low hazard potential and moderate risk assessment, the condition of Gs Dd No 8-4 has not been rated. The dam features an uncontrolled spillway with a width of 40 feet and no outlet gates. With no associated structures and a history of no modifications, this dam plays a vital role in protecting the surrounding area from potential flood events. The dam's risk management measures, emergency action plan, and inundation maps are currently not available, highlighting the need for further assessment and preparedness in the face of changing climate conditions.