Located in Muscotah, Kansas, Gsdd B-30 (Gc Gs 11) is a local government-owned earth dam designed by USDA NRCS and completed in 2000 for flood risk reduction along the South Creek-TR. Standing at a height of 27 feet and spanning a length of 750 feet, this dam has a storage capacity of 378 acre-feet and serves the primary purpose of debris control and flood risk reduction. With a low hazard potential and moderate risk assessment, the dam is regulated by the Kansas Dept. of Agriculture and undergoes regular state inspection and enforcement to ensure its structural integrity and functionality.

Although not rated for condition assessment, Gsdd B-30 features an uncontrolled spillway with a width of 40 feet and has a maximum discharge capacity of 1248 cubic feet per second. The dam covers a surface area of 10 acres and drains a 1 square mile watershed, providing crucial flood protection for the surrounding area. Despite its low hazard potential, the dam's risk management measures and emergency action plans are not currently documented, highlighting the importance of continued monitoring and maintenance to safeguard against potential risks and ensure the safety of the community it serves.