Terminal Railroad Association of St. Louis

CMR Woodson Road Overpass (St. Louis, Missouri)
Bridge over Woodson Rd. on formerly TRRA Railroad, nee- Cotton Belt
Abandoned/ Derilect

MacArthur Bridge (St. Louis, Missouri)
Built 1907-1917 by the City of St. Louis to break the monopoly of the Terminal Railroad Association, which controlled the two other bridges at St. Louis and charged unreasonable tolls. Automobile deck closed to traffic in 1981.
Three-span through truss bridge over the Mississippi River in St. Louis, south of the Poplar Street Bridge
Open to railroad traffic only

Merchants Bridge (St. Louis, Missouri)
Completed in May 1890; approaches rebuilt in 2005
Three-span through truss railroad bridge over the Mississippi River between St. Louis and Venice, Illinois
Open to two tracks of railroad traffic. Only one train is allowed to cross the bridge at a time, due to its age.

Westbelt Rail Viaduct (St. Louis, Missouri)
Rebuilt in 1997, replacing a pre-existing structure
Deck plate girder bridge over 5 city blocks of Laclede's Landing on TRRA Railroad in St. Louis
Open to railroad traffic