This CMAQ project, recently constructed in 2012, is the St. Louis region’s first modern “Green T” intersection, allowing motorists traveling from Arena Parkway to bypass the traffic signal when traveling north from Arena Parkway to South River Road. The project consists of a new traffic signal and pedestrian enhancements including reconstructing the intersection to change the predominant thru movement of the intersection. These plans required extensive construction staging as well as the use of temporary traffic signals due to the total reconfiguration of the intersection. Relocation of the adjacent Katy Trail was required to allow room for the improvements. This project was completed according to federal guidelines for use of CMAQ funds.