Scott AFB/Midamerica Airport

This airport is a join military-civilian facility in Illinois, but the civilian part (MidAmerica) was designed to server as a reliever for St-Louis (STL), just across the state line. However, it has never attracted any major airline service, and has been controversial as a result. The east runway (on the right of the image) is the one civilian one, maintained by St. Clair Co, IL., while the west runway is in the military base.