Grand

STL has had a simple light rail system for a number of years. The tracks were put on existing railroad rights of way when possible to save money. In the city center, they were put of the edge of a big rail yard running under Grand Boulevard, a major north-south artery through the city.

Some time later the city tore down and replaced the viaduct on Grand over the tracks. A fancy bus-rail interchange was built, with the buses upstairs on the bridge. Down below tomorrow.