Atchafalaya River LA 1 Bridge (Avoyelles Parish, Louisiana)
Built 1971
Three-span 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

LaRose Intracoastal Waterway LA 1 Bridge (Lafourche Parish, Louisiana)
Built 1961
Vertical lift bridge on LA 1 over the Intracoastal Waterway in LaRose
Open to traffic

Leeville Bridge (Lafourche Parish, Louisiana)
Built 1970
Vertical lift bridge over Bayou Lafourche on LA 1 at Leeville
Open to traffic

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

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