Bridge dates edit

(for original bridges only)

Orleans Parish
  • 1940 over I-10 ramps
  • 1939 over Metairie Relief Canal
Jefferson Parish
  • 1940 over Metairie Relief
St. Charles Parish
  • 1935 over Bonnet Carre
  • 1942 over four bridges labeled only "CONC BOX XING"
St. John the Baptist Parish

none

St. James Parish

none (earliest is 1954)

Ascension Parish

none (earliest is 1954)

East Baton Rouge Parish
  • 1940 over Wards Creek
  • 1940 over US 61
  • 1939/1940 at Mississippi River
West Baton Rouge Parish
  • 1940 over LA 415
Pointe Coupee Parish
  • 1942 over three bridges labeled only "STREAM"
  • 1945 over Morganza Floodway (where Old US 190 exists)