Louisiana Website Statistics

All Bridges

  • Total listed Louisiana bridges: 633
  • Bridges with photos: 371 (58.6%)
  • Bridges with Street View: 445 (70.3%)
  • Bridges with GPS coordinates: 633 (100.0%)

  • Total photos: 2,227

Extant Bridges

  • Extant bridges: 466 (73.6% of all)
  • Bridges with photos: 285 (61.2% of extant)
  • Bridges with Street View: 413 (88.6% of extant)
  • Bridges with GPS coordinates: 466 (100.0% of extant)

Lost Bridges

  • Lost bridges: 162 (25.6% of all)
  • Bridges with photos: 84 (51.9% of lost)
  • Bridges with GPS coordinates: 162 (100.0% of lost)

Oldest Listed Bridges

  1. Joor Bridge (East Baton Rouge Parish, built 1880, replaced by new bridge)
  2. KCS - Ouachita River Bridge (Ouachita Parish, built 1882, open to traffic)
  3. IC - Macon Bayou Bridge (Richland Parish, built 1883, open to traffic)
  4. NS - Lake Pontchartrain Trestle (St. Tammany Parish, built 1884, open to traffic)
  5. KCS - Dorcheat Bayou Bridge (Webster Parish, built 1884, open to traffic)
  6. KCS - Cross Bayou "A" Bridge (Caddo Parish, built 1890, abandoned)
  7. St. John Bridge (St. Martin Parish, built 1895, abandoned)
  8. KCS - Calcasieu River RR Bridge (Calcasieu Parish, built 1897, lost)
  9. KCS - Caddo Lake Bridge (Caddo Parish, built 1898, replaced by new bridge)
  10. KCS - Houston River Bridge (Calcasieu Parish, built 1900, lost)

By Design

  • Arch: 15 (2.4%)
    • Deck arch: 12 (1.9%)
      • Closed-spandrel arch: 2 (0.3%)
    • Through arch: 3 (0.5%)
      • Steel through arch: 3 (0.5%)

  • Beam: 208 (32.9%)
    • Stringer: 130 (20.5%)
      • Concrete stringer: 9 (1.4%)
      • Steel stringer: 83 (13.1%)
      • Timber stringer: 28 (4.4%)
    • Concrete tee beam: 74 (11.7%)

  • Culvert: 5 (0.8%)
    • Concrete culvert: 3 (0.5%)
    • Stone culvert: 1 (0.2%)

  • Ferry: 11 (1.7%)

  • Floating: 8 (1.3%)
    • Pontoon: 8 (1.3%)

  • Rigid frame: 4 (0.6%)
    • Concrete rigid frame: 4 (0.6%)

  • Girder: 69 (10.9%)
    • Deck girder: 39 (6.2%)
      • Concrete deck girder: 3 (0.5%)
      • Deck plate girder: 28 (4.4%)
    • Pony/through girder: 13 (2.1%)
      • Concrete pony/through girder: 1 (0.2%)
      • Pony/through plate girder: 10 (1.6%)

  • Other: 116 (18.3%)

  • Slab: 21 (3.3%)

  • Suspension: 6 (0.9%)
    • Cable-stayed: 4 (0.6%)
    • Wire suspension: 2 (0.3%)

  • Truss: 142 (22.4%)
    • Deck truss: 4 (0.6%)
      • Warren deck truss: 3 (0.5%)
    • Pony truss: 30 (4.7%)
      • Polygonal Warren pony truss: 8 (1.3%)
        • Polygonal Warren pony truss with alternating verticals: 1 (0.2%)
      • Pratt pony truss: 4 (0.6%)
      • Queenpost pony truss: 2 (0.3%)
      • Warren pony truss: 4 (0.6%)
        • Warren pony truss with all verticals: 1 (0.2%)
    • Through truss: 101 (16.0%)
      • Baltimore through truss: 2 (0.3%)
      • Camelback through truss: 1 (0.2%)
      • Double-intersection Warren through truss: 2 (0.3%)
      • Howe through truss: 1 (0.2%)
      • K-Parker through truss: 4 (0.6%)
      • K-Truss through truss: 1 (0.2%)
      • Parker through truss: 9 (1.4%)
      • Pennsylvania through truss: 1 (0.2%)
      • Polygonal Warren through truss: 10 (1.6%)
        • Polygonal Warren through truss with all verticals: 4 (0.6%)
      • Pratt through truss: 9 (1.4%)
      • Waddell "A" through truss: 1 (0.2%)
      • Warren through truss: 26 (4.1%)
        • Warren through truss with all verticals: 6 (0.9%)

    • Tunnel: 3 (0.5%)

    • Unknown: 25 (3.9%)