LA 42
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Moss Bluff Bridge (Old US 171) (Calcasieu Parish, Louisiana)
Built 1924; bypassed 1969; removed ca. 1972Warren through truss bridge over Calcasieu River on former US 171Removed but not replaced
Northbound US 171 Underpass (Vernon Parish, Louisiana)
Built 1939Pony/through plate girder bridge over KCS Railroad on Northbound US 171Open to traffic
Old US 171 KCS Underpass (De Soto Parish, Louisiana)
Built 1934Pony/through girder bridge over Trenton Road (former US 171) on Kansas City Southern RailwayOpen to traffic
Old US 171 Vernon Lake Bridge (Vernon Parish, Louisiana)
Replaced in 1967Concrete deck girder bridge over Outlet to Vernon LakeOpen to pedestrians only
UP Underpass (Calcasieu Parish, Louisiana)
Built 1937Lost concrete tee beam bridge over Union Pacific Railroad on US 171Replaced by a new bridge
US 171 Noble Overpass (Sabine Parish, Louisiana)
Built 1934; replaced 2003Lost steel stringer bridge over Kansas City Southern Railway on US 171Replaced by a new bridge