St. Louis, Iron Mountain & Southern Railroad
Allenville Railroad Bridge (Cape Girardeau County, Missouri)Built 1918 by the Bethlehem Steel Bridge Corp.
Through truss railroad bridge over the Diversion Channel between Allenville and Delta on the Belmont Branch, Iron Mountain Railroad
No longer in use
Fredericktown City Lake Railroad Bridge (Madison County, Missouri)Abandoned deck girder railroad bridge over Fredericktown City Lake, a reservoir on Little St. Francis River
Abandoned with rails removed but otherwise in decent condition
Glenallen Tunnel (Bollinger County, Missouri)
Completed August 14, 1869
Abandoned railroad tunnel north of Glenallen on the Belmont Branch, Iron Mountain Railroad
Abandoned and inaccessible on private land
Completed August 14, 1869
Abandoned railroad tunnel north of Glenallen on the Belmont Branch, Iron Mountain Railroad
Abandoned and inaccessible on private land
Hendrickson Viaduct (Butler County, Missouri)Built 1933
Concrete bridge with balusters on Old US 67 over the Union Pacific Railroad west of Hendrickson
Open to traffic, providing access to the Hendrickson boat ramp
Irondale Bridge (Washington County, Missouri)Built 1856
Stone arch bridge over Dry Creek on the Iron Mountain Railroad (now UPRR) north of Irondale in Irondale
Open to railroad traffic
Irondale Railroad Bridge (Washington County, Missouri)Deck truss bridge over Big River on the Iron Mountain Railroad (now UPRR) north of Irondale
Open to railroad traffic
Mengo Bridge (Butler County, Missouri)Built 1906 by the American Bridge Co.
Two-span through truss bridge over Black River on the Union Pacific Railroad, between Poplar Bluff and Hilliard
Still in use