Dd No H-9 is a local government-owned earth dam located in Lane, Kansas, designed by King & Associates and completed in 1987 for flood risk reduction along the Little Sac Branch of the Pottawatomie Creek. With a height of 36 feet and a length of 820 feet, this dam provides a maximum storage capacity of 442.4 acre-feet and serves a drainage area of 1.36 square miles. The spillway, with a width of 40 feet, is uncontrolled, and the dam has a low hazard potential.

Managed by the Kansas Department of Agriculture, Dd No H-9 is regulated, permitted, inspected, and enforced by the state, ensuring its structural integrity and public safety. Although the dam's condition is currently not rated, a moderate risk assessment (level 3) has been assigned. Despite its age, this dam continues to play a crucial role in mitigating flood risks in the area, highlighting the importance of maintaining and monitoring water infrastructure for climate resilience and water resource management.