Union Pacific Global III Dam, also known as Rochelle Intermodal Facility Detention Dam, is a private-owned structure located in Ogle County, Illinois. Completed in 2002, this earth-type dam stands at a height of 17.5 feet and has a length of 7100 feet, serving primarily for flood risk reduction along the Trib Kyte River. With a storage capacity of 440 acre-feet, the dam boasts a surface area of 82.1 acres and a maximum discharge rate of 55.4 cubic feet per second.

Managed by the private entity Union Pacific, this dam is regulated by the Illinois Department of Natural Resources and undergoes state inspection, permitting, and enforcement. While classified as having a low hazard potential, the dam poses a moderate risk level (3) and does not currently have a condition assessment available. Its spillway type is uncontrolled with a width of 16 feet. Despite not having associated structures, the Union Pacific Global III Dam plays a crucial role in mitigating flood risks in the region, reflecting the importance of private ownership in water resource management and climate resilience efforts.