Dd No Ii-1 is a local government-owned earth dam located in Bourbon, Kansas, along the Mill Creek-TR river. Completed in 2006, this dam serves the primary purpose of flood risk reduction, with a normal storage capacity of 72.65 acre-feet and a maximum storage capacity of 763.63 acre-feet. The dam has a structural height of 25 feet and a length of 1754 feet, providing important protection to the surrounding area during times of high water levels.

Despite its low hazard potential and moderate risk assessment, Dd No Ii-1 is regulated, permitted, inspected, and enforced by the Kansas Department of Agriculture. The dam features an uncontrolled spillway with a width of 40 feet and has not been modified since its completion. Although the condition assessment is not rated, the dam has not undergone an inspection since April 2008. It is important for water resource and climate enthusiasts to monitor the maintenance and upkeep of this structure to ensure its continued effectiveness in mitigating flood risks in the area.