Gs Dd No B-64 (Gc 17) is a debris control dam located in Larkinburg, Kansas, along the Delaware River. Owned by the local government and designed by USDA NRCS, this earth dam stands at a height of 27.1 feet and has a length of 637 feet. Its primary purpose is debris control, with additional benefits including flood risk reduction for the surrounding area. The dam has a low hazard potential and a moderate risk assessment rating, making it an important structure for water resource management in Atchison County.

With a storage capacity of 119 acre-feet and a surface area of 4.7 acres, Gs Dd No B-64 (Gc 17) plays a crucial role in managing water flow and reducing the risk of flooding along the Delaware River. Despite not being regulated by the state, the dam's design and construction by the Natural Resources Conservation Service reflect a commitment to sustainable water resource management. Although the dam's condition assessment is currently not rated, its operation and maintenance are essential for ensuring its continued effectiveness in protecting the local community from potential water-related hazards.

In the event of an emergency, the dam's emergency action plan (EAP) status is currently not prepared, highlighting the need for proactive risk management measures. With a spillway width of 40 feet and a maximum discharge capacity of 620 cubic feet per second, Gs Dd No B-64 (Gc 17) serves as a vital infrastructure asset for the region. Overall, this debris control dam plays a significant role in preserving water resources and mitigating flooding risks in Atchison County, Kansas.