Alaska Website Statistics

All Bridges

  • Total listed Alaska bridges: 136
  • Bridges with photos: 61 (44.9%)
  • Bridges with Street View: 68 (50.0%)
  • Bridges with GPS coordinates: 133 (97.8%)

  • Total photos: 242

Extant Bridges

  • Extant bridges: 114 (83.8% of all)
  • Bridges with photos: 50 (43.9% of extant)
  • Bridges with Street View: 59 (51.8% of extant)
  • Bridges with GPS coordinates: 111 (97.4% of extant)

Lost Bridges

  • Lost bridges: 14 (10.3% of all)
  • Bridges with photos: 9 (64.3% of lost)
  • Bridges with GPS coordinates: 14 (100.0% of lost)

Oldest Listed Bridges

  1. White Pass & Yukon - Switchback Arch Bridge (Skagway, built 1900, abandoned)
  2. Million Dollar Bridge (Valdez-Cordova Census Area, built 1910, open to traffic)
  3. Kuskulana River Bridge (Valdez-Cordova Census Area, built 1910, open to traffic)
  4. CR&NW - Gilahina Trestle (Valdez-Cordova Census Area, built 1911, abandoned)
  5. Tazlina Bridge (Valdez-Cordova Census Area, built 1917, replaced by new bridge)
  6. Kuzitrin River Bridge (Nome Census Area, built 1917, open to traffic)
  7. Cushman Street Bridge (Fairbanks North Star Borough, built 1917, replaced by new bridge)
  8. Mendenhall River Bridge (Juneau Borough, built 1919, replaced by new bridge)
  9. Water Street No. 1 Trestle (Ketchikan Gateway Borough, built 1920, open to traffic)
  10. Alaska - Hurricane Gulch Bridge (Matanuska-Susitna Borough, built 1921, open to traffic)

By Design

  • Arch: 8 (5.9%)
    • Deck arch: 7 (5.1%)
      • Steel arch: 6 (4.4%)
    • Through arch: 1 (0.7%)
      • Timber through arch: 1 (0.7%)

  • Beam: 34 (25.0%)
    • Stringer: 33 (24.3%)
      • Steel stringer: 3 (2.2%)
      • Timber stringer: 28 (20.6%)
    • Concrete tee beam: 1 (0.7%)

  • Girder: 9 (6.6%)
    • Deck girder: 4 (2.9%)
      • Deck plate girder: 4 (2.9%)
    • Pony/through girder: 3 (2.2%)
      • Pony/through plate girder: 3 (2.2%)

  • Other: 2 (1.5%)

  • Suspension: 5 (3.7%)
    • Cable-stayed: 2 (1.5%)
    • Wire suspension: 2 (1.5%)

  • Truss: 70 (51.5%)
    • Deck truss: 5 (3.7%)
      • Warren deck truss: 1 (0.7%)
    • Pony truss: 22 (16.2%)
      • Bailey pony truss: 2 (1.5%)
      • Polygonal Warren pony truss: 3 (2.2%)
        • Polygonal Warren pony truss with alternating verticals: 1 (0.7%)
      • Pratt pony truss: 3 (2.2%)
      • Warren pony truss: 6 (4.4%)
        • Warren pony truss with alternating verticals: 2 (1.5%)
    • Through truss: 43 (31.6%)
      • Camelback through truss: 2 (1.5%)
      • Double-intersection Warren through truss: 1 (0.7%)
      • Howe through truss: 1 (0.7%)
      • K-Parker through truss: 4 (2.9%)
      • Kingpost through truss: 1 (0.7%)
      • Parker through truss: 1 (0.7%)
      • Pennsylvania through truss: 11 (8.1%)
      • Polygonal Warren through truss: 3 (2.2%)
        • Polygonal Warren through truss with all verticals: 2 (1.5%)
      • Pratt through truss: 2 (1.5%)
      • Warren through truss: 4 (2.9%)

  • Tunnel: 5 (3.7%)

  • Unknown: 3 (2.2%)