Iii-3, located in Bourbon County, Kansas, is a local government-owned earth dam completed in 1996 for flood risk reduction on Little Mill Creek. With a height of 15 feet and a length of 837 feet, this structure has a storage capacity of 133.82 acre-feet and covers a surface area of 5 acres. The dam is classified as having a low hazard potential and a moderate risk assessment.

Managed by the Tulsa District of the US Army Corps of Engineers, Iii-3 has not been inspected since 1996 and is currently rated as "Not Rated" in terms of condition assessment. The spillway is uncontrolled with a width of 40 feet, and there are no outlet gates or associated structures. Despite the lack of recent inspections, the dam is considered to meet guidelines for emergency action plans, although specific details on preparedness and risk management measures are not provided in the data.

Overall, Iii-3 serves a crucial purpose in protecting the surrounding area from flooding events, but there are areas for improvement in terms of inspection frequency and emergency preparedness. The dam's location, design, and storage capacity make it a vital asset in the management of water resources and climate-related risks in the region, highlighting the importance of ongoing monitoring and maintenance to ensure its effectiveness in mitigating flood hazards.