Gs Dd No 8-4 is a local government-owned structure located in Douglas, Kansas, designed by King Engineering and regulated by the Kansas Department of Agriculture. Completed in 1991, this Earth dam stands at a height of 32 feet and serves a primary purpose of debris control, with additional functions including flood risk reduction. With a storage capacity of 316 acre-feet and a drainage area of 0.79 square miles, this dam plays a crucial role in managing water resources in the region.

Situated on Tauy Creek-TR, Gs Dd No 8-4 has a low hazard potential and is currently not rated for its condition assessment. Despite this, the structure undergoes regular state inspections, with permitting, enforcement, and regulatory oversight provided by the Kansas state government. The dam's spillway, with a width of 100 feet, is uncontrolled, and it has a maximum discharge capacity of 2350 cubic feet per second, ensuring effective management of water flow during extreme weather events. Overall, this dam plays a vital role in mitigating flood risks and protecting the surrounding community from potential water-related hazards.

With a surface area of 7.9 acres and a normal storage capacity of 25.1 acre-feet, Gs Dd No 8-4 is a key component of the local water management infrastructure in Kansas. As a part of the Tulsa District of the US Army Corps of Engineers, this dam serves as a critical resource for maintaining water quality and controlling debris in the region. The structure's moderate risk assessment rating underscores the importance of ongoing monitoring and management to ensure its continued effectiveness in safeguarding the community and the environment from water-related threats.