California Website Statistics

All Bridges

  • Total listed California bridges: 2,170
  • Bridges with photos: 1,577 (72.7%)
  • Bridges with Street View: 1,287 (59.3%)
  • Bridges with GPS coordinates: 2,151 (99.1%)

  • Total photos: 12,327

Extant Bridges

  • Extant bridges: 1,704 (78.5% of all)
  • Bridges with photos: 1,229 (72.1% of extant)
  • Bridges with Street View: 1,132 (66.4% of extant)
  • Bridges with GPS coordinates: 1,691 (99.2% of extant)

Lost Bridges

  • Lost bridges: 401 (18.5% of all)
  • Bridges with photos: 265 (66.1% of lost)
  • Bridges with GPS coordinates: 398 (99.3% 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. Sacramento-Yolo Bridge (Sacramento County, built 1858, lost)
  4. California Central - Folsom Railroad Bridge (Sacramento County, built 1858, removed)
  5. Main Street Bridge (Napa County, built 1860, open to traffic)
  6. Oregon Creek Covered Bridge 05-58-01 (Yuba County, built 1860, open to traffic)
  7. Folsom Suspension Bridge (Sacramento County, built 1861, collapsed)
  8. Ecklon Bridge (Sacramento County, built 1862, collapsed)
  9. Bridgeport Covered Bridge 05-29-01 (Nevada County, built 1862, closed to all traffic)
  10. SSF Centennial Trail - Cut Stone Bridge (San Mateo County, built 1863, open to pedestrians)

By Design

  • Arch: 483 (22.3%)
    • Deck arch: 461 (21.2%)
      • Closed-spandrel arch: 168 (7.7%)
      • Iron arch: 1 (0.05%)
      • Luten arch: 4 (0.2%)
      • Open-spandrel arch: 110 (5.1%)
      • Steel arch: 17 (0.8%)
      • Stone arch: 64 (2.9%)
      • Timber arch: 1 (0.05%)
    • Pony arch: 6 (0.3%)
      • Concrete pony arch: 5 (0.2%)
    • Through arch: 15 (0.7%)
      • Concrete through arch: 6 (0.3%)
      • Steel through arch: 8 (0.4%)

  • Beam: 455 (21.0%)
    • Stringer: 299 (13.8%)
      • Concrete stringer: 35 (1.6%)
      • Steel stringer: 123 (5.7%)
      • Timber stringer: 131 (6.0%)
    • Concrete tee beam: 130 (6.0%)

  • Culvert: 18 (0.8%)
    • Concrete culvert: 8 (0.4%)
    • Stone culvert: 2 (0.09%)

  • Ferry: 9 (0.4%)

  • Rigid frame: 13 (0.6%)
    • Concrete rigid frame: 11 (0.5%)
    • Steel rigid frame: 2 (0.09%)

  • Girder: 238 (11.0%)
    • Deck girder: 130 (6.0%)
      • Concrete deck girder: 26 (1.2%)
      • Deck plate girder: 95 (4.4%)
    • Pony/through girder: 86 (4.0%)
      • Concrete pony/through girder: 10 (0.5%)
      • Concrete curved chord through girder: 1 (0.05%)
      • Pony/through plate girder: 75 (3.5%)

  • Other: 40 (1.8%)

  • Slab: 39 (1.8%)

  • Suspension: 35 (1.6%)
    • Cable-stayed: 5 (0.2%)
    • Wire suspension: 30 (1.4%)

  • Truss: 665 (30.6%)
    • Deck truss: 98 (4.5%)
      • Bailey deck truss: 4 (0.2%)
      • Baltimore deck truss: 1 (0.05%)
      • Canticrete deck truss: 2 (0.09%)
      • Double-intersection Warren deck truss: 6 (0.3%)
      • Howe deck truss: 2 (0.09%)
      • Pratt deck truss: 15 (0.7%)
      • Scissors deck truss: 1 (0.05%)
      • Warren deck truss: 40 (1.8%)
        • 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 pony truss: 5 (0.2%)
        • Modern bowstring pony truss: 1 (0.05%)
        • Modern polygonal Warren pony truss: 1 (0.05%)
        • Modern Pratt pony truss: 2 (0.09%)
      • 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: 210 (9.7%)
      • Bailey pony truss: 24 (1.1%)
      • Double-intersection Warren pony truss: 3 (0.1%)
      • Howe pony truss: 2 (0.09%)
      • Kingpost pony truss: 3 (0.1%)
      • Parker pony truss: 2 (0.09%)
      • Polygonal Warren pony truss: 14 (0.6%)
        • Polygonal Warren pony truss with alternating verticals: 1 (0.05%)
        • Polygonal Warren pony truss with all verticals: 3 (0.1%)
      • Pratt pony truss: 30 (1.4%)
      • Half-hip Pratt pony truss: 2 (0.09%)
      • Queenpost pony truss: 5 (0.2%)
      • Vierendeel pony truss: 3 (0.1%)
      • Warren pony truss: 59 (2.7%)
        • Warren pony truss with alternating verticals: 3 (0.1%)
        • Warren pony truss with all verticals: 6 (0.3%)
    • Through truss: 339 (15.6%)
      • Baltimore through truss: 12 (0.6%)
      • Bowstring through truss: 1 (0.05%)
      • Camelback through truss: 15 (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: 23 (1.1%)
      • Pegram through truss: 1 (0.05%)
      • Pennsylvania through truss: 16 (0.7%)
      • Polygonal Warren through truss: 6 (0.3%)
        • Polygonal Warren through truss with no verticals: 1 (0.05%)
      • Pratt through truss: 148 (6.8%)
      • Queenpost through truss: 1 (0.05%)
      • Smith through truss: 1 (0.05%)
      • Warren through truss: 44 (2.0%)
        • Warren through truss with sub-panels: 1 (0.05%)
        • Warren through truss with all verticals: 7 (0.3%)

    • Tunnel: 122 (5.6%)

    • Unknown: 53 (2.4%)