Dd No. 203 is a local government-owned earth dam located in Osage, Kansas, designed by King Engineering. Completed in 2001, this dam serves the primary purpose of flood risk reduction along the South Branch Wakarusa River. With a height of 30.7 feet and a length of 330 feet, Dd No. 203 has a storage capacity of 72.2 acre-feet and a drainage area of 0.33 square miles.

Despite being classified as having a low hazard potential, Dd No. 203 is subject to state regulations, inspections, and enforcement by the Kansas Department of Agriculture. The dam has not been rated for its condition assessment, but its risk assessment is considered moderate. The spillway type is uncontrolled with a width of 30 feet, and there are no outlet gates associated with the structure. The dam's location in a critical watershed area highlights its importance in managing water resources and mitigating potential risks to the surrounding community.

Overall, Dd No. 203 plays a crucial role in the local flood risk reduction efforts in Osage, Kansas. With its strategic design and state-regulated operations, this earth dam contributes to the sustainable management of water resources in the region. Climate and water resource enthusiasts will find Dd No. 203 to be an intriguing example of infrastructure that balances environmental protection with community safety.