Located in Circleville, Kansas, the Gs Dd No C-20(Gs No.15) dam is owned by the local government and regulated by the Kansas Department of Agriculture. Designed by USDA NRCS, this earth dam stands at a height of 31 feet and spans a length of 550 feet, serving primarily for flood risk reduction purposes. With a normal storage capacity of 32.2 acre-feet and a maximum discharge of 800 cubic feet per second, the dam plays a crucial role in controlling debris and mitigating flood risks in the area.

The dam's hazard potential is rated as low, with a moderate risk assessment score of 3. While the condition assessment is not rated, the dam has not undergone recent inspections or been evaluated for emergency action plan preparedness. Despite these factors, the Gs Dd No C-20(Gs No.15) dam remains a vital infrastructure for the local community, safeguarding against potential flooding and contributing to the overall water resource management in Jackson County, Kansas. For water resource and climate enthusiasts, this dam represents a key component of the region's flood control infrastructure and highlights the importance of proactive maintenance and risk management practices in safeguarding against natural disasters.