Buck Run Bridge (Johnson County, Illinois)
Replaced 1930Abandoned concrete bridge over Buck Run on Old IL 146
Cape Girardeau Bridge (Cape Girardeau County, Missouri)
Opened to traffic Sept. 3, 1928; replaced 2003Lost continuous through truss bridge over the Mississippi River on MO 34/IL 146 at Cape GirardeauReplaced by Bill Emerson Memorial Bridge and closed to all traffic on December 13, 2003; main spans demolished on September 9, 2004
Dixon Springs Arch Bridge (Pope County, Illinois)
Built 1928; rehabilitated 1975Three-span concrete arch bridge over Hills Branch on IL 146 at Dixon Springs State ParkOpen to two-lane traffic
Dutchman Creek Bridge (Johnson County, Illinois)
Built ca. 1930Through truss bridge on Old IL 146 over Dutchman Creek west of ViennaOpen to two-lane traffic with a 15 ton weight limit