Bogue Falaya River Bridge[Map] Lost steel stringer bridge over Bogue Falaya River on US 190 BUS / LA 21 Replaced by a new bridge Built 1929; replaced 1993
I-10 Twin Span Bridge[Map] Steel stringer bridge over Lake Pontchartrain on I-10 Replaced by a new bridge Built 1965; rehabilitated 2006 after being damaged by Hurricane Katrina; replaced 2010
IC - Lacombe Bayou Bridge (Old)[Map] Pony plate girder swing bridge over Lacombe Bayou on Former Illinois Central Railroad A Bascule draw built across of bike traffic Built 1907; Removed 2008
ICG - LA-21 Overpass[Map] Lost Steel stringer bridge over Former Illinois Central Gulf Railroad on LA-21 Railroad line closed and removed; bridge demolished and replaced with blacktop Built 1933
L&N - Rigolets Pass Bridge[Map] Lost Pennsylvania through truss bridge over Rigolets Pass on CSX Railroad Replaced by a new bridge after a hurricane Built in 1902 ; replaced in 1925
LA36 Overpass[Map · Street View] Steel stringer bridge over Former Illinois Central Gulf Railroad on LA-36 Open to traffic Built 1937
Lake Pontchartrain Causeway[Map · Street View] Pair of prestressed concrete bridges over Lake Pontchartrain with a length of nearly 24 miles Open to two lanes of toll southbound traffic and two lanes of free northbound traffic First bridge built 1956
Liberty Bayou Bridge[Map] Concrete stringer wooden bridge over Liberty Bayou on Louisiana Route 433 Replaced by a new bridge Built in 1941; replaced 1980
Maestri Bridge[Map · Street View] Bascule bridge over Lake Pontchartrain on US 11 in New Orleans Closed for rehabilitation. Reopening date unknown given multiple delays Built 1928
NS - Lake Pontchartrain Trestle[Map · Street View] Bascule bridge over Lake Pontchartrain on Norfolk Southern Railway (former Southern Railway) Open to traffic Originally built 1884. several upgrades have been made since
Old US 11 Pearl River Bridge[Map] Lost Bridge over (East) Pearl River on Old US 11 (originally US 90) Removed but not replaced Built 1925; closed to traffic 1970s; removed 1977