LA 1

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Atchafalaya River LA 1 Bridge (Avoyelles Parish, Louisiana)
Built 1971
Cantilevered Warren through truss bridge over Atchafalaya River on LA 1 at Simmesport in Simmesport
Open to traffic

Caddo Lake LA 1 Bridge (Caddo Parish, Louisiana)
Built 1940
Nine-span pony truss bridge over Caddo Lake on LA 1 near Mooringsport
Open to traffic

KCS - Atchafalaya River Bridge (Avoyelles Parish, Louisiana)
Through truss swing bridge over Atchafalaya River on Kansas City Southern Railroad (formerly also carried LA-1)
Open to traffic

Leeville Bridge (Lafourche Parish, Louisiana)
Built 1970; Replaced by new bridge in 2010
Lost vertical lift bridge over Bayou Lafourche on LA 1 at Leeville
Replaced by new bridge

Lockport Company Canal Bridge (Lafourche Parish, Louisiana)
Built 1959
Vertical lift bridge on LA 1 over Company Canal in Lockport
Open to traffic

Old Highway 1 Bridge (Rapides Parish, Louisiana)
Abandoned concrete deck girder bridge over Bayou Jean de Jean on former LA 1
Abandoned

Plaquemine LA 1 Bridge (Iberville Parish, Louisiana)
Built ca. 1950
Vertical lift bridge over Bayou Plaquemine on LA 1 SB at Plaquemine
Open to traffic

US 190 UP Underpass (West Baton Rouge Parish, Louisiana)
Built 1940
Steel stringer bridge over Union Pacific Railroad & LA-415 on US-190
Open to traffic

West Larose Lift Bridge (Lafourche Parish, Louisiana)
Built 1960
Vertical lift bridge on LA 1 over the Intracoastal Waterway in LaRose
Open to traffic