IL 146
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Branch Bay Creek Culvert (Pope County, Illinois)
Concrete culvert over Branch of Bay Creek next to IL 146Closed to all traffic
Buck Run Bridge (Johnson County, Illinois)
Bypassed 1930Abandoned concrete bridge over Buck Run on Old IL 146Abandoned
Cape Girardeau Bridge (Cape Girardeau County, Missouri)
Built 1928, closed to all traffic on December 13, 2003, main spans demolished on September 9, 2004Lost continuous through truss bridge over the Mississippi River on MO 34/IL 146 at Cape GirardeauReplaced by Bill Emerson Memorial Bridge
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