Alton Bridge (Madison County, Illinois)
Built 1928; closed for major repairs in 1959 and 1975; permanently closed January 4, 1994; first span imploded August 11, 1994, other 6 spans imploded August-October 1994Lost seven-span through truss bridge over the Mississippi River on US 67 at AltonReplaced by the Clark Bridge
Alton Railroad Bridge (Madison County, Illinois)
Built 1892-94 under the direction of George S. MorisonLost through truss swing bridge over the Mississippi River on the Burlington Northern Railroad at AltonRemoved after the railroad line was abandoned
Alton Steel Rail Yard Bridge (Madison County, Illinois)
pratt through truss bridge built over Alton Steel rail yard. approaches have been removed.Abandoned pratt through truss bridge over rail yard on unknown in AltonAbandoned
Clark Bridge (Madison County, Illinois)
Opened January 4, 1994, replacing the Alton BridgeCable-stayed bridge over the Mississippi River on US 67 at AltonOpen to four lanes of traffic