Ascension Parish, Louisiana

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Bayou Manchac Bridge (East Baton Rouge Parish, Louisiana)
Built 1953
Concrete tee beam bridge over Bayou Manchac on US-61
Open to traffic

LA73 Bayou Manchac Bridge (East Baton Rouge Parish, Louisiana)
Built 1931
Pony truss bridge over Bayou Manchac on LA 73
Open to traffic

New River Bridge (Ascension Parish, Louisiana)
Built 1910's
Concrete tee beam bridge over New River on Jefferson Highway
Bypassed by two-lane bridge

Old Bayou Manchac Bridge (East Baton Rouge Parish, Louisiana)
Built 1918; replaced 1931
Lost bridge over Bayou Manchac on Old Jefferson Highway (former US 61)
Replaced by a new bridge

Port Vincent - Amite River Bridge (Livingston Parish, Louisiana)
Collapsed 1959
Lost Bridge over Amite River at Port Vincent on LA-42
Collapsed

T&P - Bayou Lafourche Bridge (Ascension Parish, Louisiana)
Built 1948 replaced
Through truss bridge over Bayou Lafourche on Texas & Pacific RR
Replaced by a new bridge