Dd No 103 is a vital structure in Lyon, Kansas, designed for flood risk reduction along the SOUTH EAGLE CREEK-TR. Completed in 2012, this earth dam stands at a height of 19.8 feet and spans a length of 1200 feet, providing essential storage capacity of 286.34 acre-feet. With a low hazard potential and moderate risk assessment rating, this dam serves multiple purposes including debris control, fish and wildlife pond, in addition to flood risk reduction.

Managed by the Kansas Department of Agriculture, Dd No 103 is subject to state regulation, inspection, and enforcement to ensure its structural integrity and safety. The dam features an uncontrolled spillway with a width of 55 feet and a surface area of 10.17 acres. While the condition assessment is currently not rated, the dam meets guidelines for emergency action planning and risk management. Overall, Dd No 103 plays a crucial role in protecting the surrounding area from potential flood events and contributes to the conservation of water resources in the region.

Located within the Kansas City District, Dd No 103 is a significant asset for water resource and climate enthusiasts interested in sustainable infrastructure development. With its strategic placement and efficient design, this dam exemplifies the importance of proactive flood risk management and the integration of ecological considerations in water resource projects. As a key component of the local government's flood control system, Dd No 103 showcases the successful collaboration between state agencies and the community in safeguarding water resources and enhancing climate resilience in Lyon, Kansas.