California Website Statistics

All Bridges

  • Total listed California bridges: 2,103
  • Bridges with photos: 1,526 (72.6%)
  • Bridges with Street View: 1,256 (59.7%)
  • Bridges with GPS coordinates: 2,087 (99.2%)

  • Total photos: 11,857

Extant Bridges

  • Extant bridges: 1,671 (79.5% of all)
  • Bridges with photos: 1,235 (73.9% of extant)
  • Bridges with Street View: 1,114 (66.7% of extant)
  • Bridges with GPS coordinates: 1,661 (99.4% of extant)

Lost Bridges

  • Lost bridges: 377 (17.9% of all)
  • Bridges with photos: 248 (65.8% of lost)
  • Bridges with GPS coordinates: 374 (99.2% of lost)

Oldest Listed Bridges

  1. Redwood City Bridge (San Mateo County, built 1854, lost)
  2. Bidwell Bar Suspension Bridge (original 1856 bridge) (Butte County, built 1856, open to pedestrians)
  3. California Central - Folsom Railroad Bridge (Sacramento County, built 1858, removed)
  4. Main Street Bridge (Napa County, built 1860, open to traffic)
  5. Oregon Creek Covered Bridge 05-58-01 (Yuba County, built 1860, closed to all traffic)
  6. Folsom Suspension Bridge (Sacramento County, built 1861, collapsed)
  7. Bridgeport Covered Bridge 05-29-01 (Nevada County, built 1862, closed to all traffic)
  8. Ecklon Bridge (Sacramento County, built 1862, collapsed)
  9. SSF Centennial Trail - Cut Stone Bridge (San Mateo County, built 1863, open to pedestrians)
  10. P&SVRR - Latrobe Trestle (El Dorado County, built 1863 -1864, filled in)

By Design

  • Arch: 472 (22.4%)
    • Deck arch: 455 (21.6%)
      • Closed-spandrel arch: 165 (7.8%)
      • Iron arch: 1 (0.05%)
      • Luten arch: 4 (0.2%)
      • Open-spandrel arch: 110 (5.2%)
      • Steel arch: 17 (0.8%)
      • Stone arch: 63 (3.0%)
      • Timber arch: 1 (0.05%)
    • Pony arch: 2 (0.10%)
      • Concrete pony arch: 2 (0.10%)
    • Through arch: 14 (0.7%)
      • Concrete through arch: 6 (0.3%)
      • Steel through arch: 7 (0.3%)

  • Beam: 449 (21.4%)
    • Stringer: 297 (14.1%)
      • Concrete stringer: 34 (1.6%)
      • Steel stringer: 121 (5.8%)
      • Timber stringer: 132 (6.3%)
    • Concrete tee beam: 126 (6.0%)

  • Culvert: 15 (0.7%)
    • Concrete culvert: 7 (0.3%)
    • Stone culvert: 2 (0.10%)

  • Ferry: 9 (0.4%)

  • Rigid frame: 13 (0.6%)
    • Concrete rigid frame: 11 (0.5%)
    • Steel rigid frame: 2 (0.10%)

  • Girder: 233 (11.1%)
    • Deck girder: 127 (6.0%)
      • Concrete deck girder: 26 (1.2%)
      • Deck plate girder: 93 (4.4%)
    • Pony/through girder: 84 (4.0%)
      • Concrete pony/through girder: 10 (0.5%)
      • Concrete curved chord through girder: 1 (0.05%)
      • Pony/through plate girder: 73 (3.5%)

  • Other: 40 (1.9%)

  • Slab: 37 (1.8%)

  • Suspension: 29 (1.4%)
    • Cable-stayed: 3 (0.1%)
    • Wire suspension: 26 (1.2%)

  • Truss: 647 (30.8%)
    • Deck truss: 97 (4.6%)
      • Bailey deck truss: 4 (0.2%)
      • Baltimore deck truss: 1 (0.05%)
      • Canticrete deck truss: 2 (0.10%)
      • Double-intersection Warren deck truss: 6 (0.3%)
      • Howe deck truss: 2 (0.10%)
      • Pratt deck truss: 15 (0.7%)
      • Scissors deck truss: 1 (0.05%)
      • Warren deck truss: 40 (1.9%)
        • Warren deck truss with alternating verticals: 1 (0.05%)
        • Warren deck truss with all verticals: 4 (0.2%)
      • Whipple deck truss: 1 (0.05%)
    • Half-through truss: 1 (0.05%)
      • Pratt half-through truss: 1 (0.05%)
    • Modern truss: 12 (0.6%)
      • Modern through truss: 5 (0.2%)
        • Modern bowstring pony truss: 1 (0.05%)
        • Modern polygonal Warren pony truss: 1 (0.05%)
        • Modern Pratt pony truss: 2 (0.10%)
      • Modern through truss: 7 (0.3%)
        • Modern bowstring through truss: 1 (0.05%)
        • Modern polygonal Warren through truss: 1 (0.05%)
        • Modern Pratt through truss: 1 (0.05%)
        • Modern Warren through truss: 4 (0.2%)
    • Pony truss: 204 (9.7%)
      • Bailey pony truss: 24 (1.1%)
      • Double-intersection Warren pony truss: 3 (0.1%)
      • Howe pony truss: 2 (0.10%)
      • Kingpost pony truss: 3 (0.1%)
      • Parker pony truss: 2 (0.10%)
      • Polygonal Warren pony truss: 11 (0.5%)
        • Polygonal Warren pony truss with alternating verticals: 1 (0.05%)
        • Polygonal Warren pony truss with all verticals: 1 (0.05%)
      • Pratt pony truss: 29 (1.4%)
      • Half-hip Pratt pony truss: 1 (0.05%)
      • Queenpost pony truss: 5 (0.2%)
      • Vierendeel pony truss: 3 (0.1%)
      • Warren pony truss: 59 (2.8%)
        • Warren pony truss with alternating verticals: 2 (0.10%)
        • Warren pony truss with all verticals: 6 (0.3%)
    • Through truss: 332 (15.8%)
      • Baltimore through truss: 10 (0.5%)
      • Bowstring through truss: 1 (0.05%)
      • Camelback through truss: 14 (0.7%)
      • Howe through truss: 21 (1.0%)
      • K-Parker through truss: 1 (0.05%)
      • K-Truss through truss: 1 (0.05%)
      • Kingpost through truss: 1 (0.05%)
      • Parker through truss: 25 (1.2%)
      • Pegram through truss: 1 (0.05%)
      • Pennsylvania through truss: 15 (0.7%)
      • Polygonal Warren through truss: 7 (0.3%)
        • Polygonal Warren through truss with no verticals: 1 (0.05%)
      • Pratt through truss: 140 (6.7%)
      • Queenpost through truss: 1 (0.05%)
      • Smith through truss: 1 (0.05%)
      • Warren through truss: 45 (2.1%)
        • Warren through truss with sub-panels: 2 (0.10%)
        • Warren through truss with all verticals: 6 (0.3%)

    • Tunnel: 115 (5.5%)

    • Unknown: 44 (2.1%)