Oregon Website Statistics

All Bridges

  • Total listed Oregon bridges: 840
  • Bridges with photos: 675 (80.4%)
  • Bridges with Street View: 516 (61.4%)
  • Bridges with GPS coordinates: 836 (99.5%)

  • Total photos: 8,081

Extant Bridges

  • Extant bridges: 672 (80.0% of all)
  • Bridges with photos: 552 (82.1% of extant)
  • Bridges with Street View: 493 (73.4% of extant)
  • Bridges with GPS coordinates: 671 (99.9% of extant)

Lost Bridges

  • Lost bridges: 162 (19.3% of all)
  • Bridges with photos: 99 (61.1% of lost)
  • Bridges with GPS coordinates: 159 (98.1% of lost)

Oldest Listed Bridges

  1. South Mill Creek Covered Bridge 37-24-10x (Marion County, built 1862, destroyed by flood)
  2. Oregon & California - Pudding River Bridge (Clackamas County, built 1870, replaced by new bridge)
  3. Knight's Bridge 37-03-02x (Clackamas County, built 1877, destroyed by storm)
  4. Oregon & California - Willamette River Bridge (Lane County, built 1881, replaced by new bridge)
  5. Hayden Bridge (Lane County, built 1882, abandoned)
  6. Fox Covered Bridge (Coos County, built 1883, destroyed by fire)
  7. POTB - Wilson River Bridge (Tillamook County, built 1884, open to traffic)
  8. SP - Willamette River Bridge (Old) (Linn County, built 1887, replaced by new bridge)
  9. Armitage Bridge (Lane County, built 1887, open to pedestrians)
  10. OR&N - John Day River Bridge (Old) (Sherman County, built 1887, replaced by new bridge)

Oldest Listed Extant Bridges

  1. Hayden Bridge (Lane County, built 1882, abandoned)
  2. POTB - Wilson River Bridge (Tillamook County, built 1884, open to traffic)
  3. Armitage Bridge (Lane County, built 1887, open to pedestrians)
  4. Mill City Trail - North Fork Santiam River Bridge (Marion County, built 1888, open to pedestrians)
  5. PNWR - Whiteson Trestle (Yamhill County, built 1890, open to traffic)
  6. Portland Water Works Bridge (Clackamas County, built 1893, in storage)
  7. PNWR - Blind Slough Bridge (Clatsop County, built 1895, closed to all traffic)
  8. OCSR - Nehalem River Bridge (Tillamook County, built 1896, abandoned)
  9. PNWR - Clatskanie River Bridge (Columbia County, built 1897, open to traffic)
  10. OC&E State Trail - USRS "A" Canal Bridge (Klamath County, built 1898, open to pedestrians)

By Design

  • Arch: 93 (11.1%)
    • Deck arch: 67 (8.0%)
      • Closed-spandrel arch: 15 (1.8%)
      • Luten arch: 2 (0.2%)
      • Open-spandrel arch: 41 (4.9%)
      • Ribbed closed-spandrel arch: 1 (0.1%)
      • Steel arch: 4 (0.5%)
      • Timber arch: 3 (0.4%)
    • Pony arch: 2 (0.2%)
      • Timber pony arch: 2 (0.2%)
    • Through arch: 24 (2.9%)
      • Concrete through arch: 8 (1.0%)
      • Network arch: 1 (0.1%)
      • Steel through arch: 13 (1.5%)
      • Timber through arch: 2 (0.2%)

  • Beam: 171 (20.4%)
    • Stringer: 146 (17.4%)
      • Concrete stringer: 43 (5.1%)
      • Steel stringer: 27 (3.2%)
      • Timber stringer: 53 (6.3%)
    • Concrete tee beam: 24 (2.9%)

  • Ferry: 5 (0.6%)

  • Girder: 89 (10.6%)
    • Deck girder: 58 (6.9%)
      • Concrete deck girder: 28 (3.3%)
      • Deck plate girder: 26 (3.1%)
    • Pony/through girder: 28 (3.3%)
      • Concrete pony/through girder: 3 (0.4%)
      • Pony/through plate girder: 23 (2.7%)

  • Other: 18 (2.1%)

  • Slab: 8 (1.0%)

  • Suspension: 10 (1.2%)
    • Cable-stayed: 4 (0.5%)
    • Wire suspension: 4 (0.5%)

  • Truss: 401 (47.7%)
    • Deck truss: 47 (5.6%)
      • Baltimore deck truss: 1 (0.1%)
      • Double-intersection Warren deck truss: 1 (0.1%)
      • Howe deck truss: 2 (0.2%)
      • Pratt deck truss: 3 (0.4%)
      • Warren deck truss: 39 (4.6%)
        • Warren deck truss with alternating verticals: 1 (0.1%)
        • Warren deck truss with all verticals: 2 (0.2%)
    • Modern truss: 1 (0.1%)
      • Modern through truss: 1 (0.1%)
        • Modern Pratt pony truss: 1 (0.1%)
    • Pony truss: 88 (10.5%)
      • Bailey pony truss: 3 (0.4%)
      • Bowstring pony truss: 2 (0.2%)
      • Double-intersection Warren pony truss: 1 (0.1%)
      • Howe pony truss: 1 (0.1%)
      • Kingpost pony truss: 5 (0.6%)
      • Polygonal Warren pony truss: 45 (5.4%)
        • Polygonal Warren pony truss with alternating verticals: 2 (0.2%)
        • Polygonal Warren pony truss with all verticals: 1 (0.1%)
      • Pratt pony truss: 6 (0.7%)
      • Half-hip Pratt pony truss: 3 (0.4%)
      • Warren pony truss: 17 (2.0%)
        • Warren pony truss with alternating verticals: 3 (0.4%)
    • Through truss: 258 (30.7%)
      • Camelback through truss: 1 (0.1%)
      • Double-intersection Warren through truss: 4 (0.5%)
      • Howe through truss: 61 (7.3%)
      • Kingpost through truss: 2 (0.2%)
      • Parker through truss: 58 (6.9%)
      • Pegram through truss: 2 (0.2%)
      • Pennsylvania through truss: 8 (1.0%)
      • Polygonal Warren through truss: 10 (1.2%)
        • Polygonal Warren through truss with alternating verticals: 1 (0.1%)
      • Pratt through truss: 37 (4.4%)
      • Queenpost through truss: 3 (0.4%)
      • Smith through truss: 2 (0.2%)
      • Warren through truss: 53 (6.3%)
        • Warren through truss with alternating verticals: 1 (0.1%)
        • Warren through truss with sub-panels: 2 (0.2%)
        • Warren through truss with all verticals: 13 (1.5%)
      • Whipple through truss: 3 (0.4%)

  • Tunnel: 31 (3.7%)

  • Unknown: 14 (1.7%)