Illinois Website Statistics

All Bridges

  • Total listed Illinois bridges: 3,743
  • Bridges with photos: 2,467 (65.9%)
  • Bridges with Street View: 1,039 (27.8%)
  • Bridges with GPS coordinates: 3,729 (99.6%)

  • Total photos: 19,286

Extant Bridges

  • Extant bridges: 2,529 (67.6% of all)
  • Bridges with photos: 1,852 (73.2% of extant)
  • Bridges with Street View: 944 (37.3% of extant)
  • Bridges with GPS coordinates: 2,527 (99.9% of extant)

Lost Bridges

  • Lost bridges: 1,157 (30.9% of all)
  • Bridges with photos: 575 (49.7% of lost)
  • Bridges with GPS coordinates: 1,146 (99.0% of lost)

Oldest Listed Bridges

  1. Old Galena Trail Stone Arch Bridge (Carroll County, built 1830, abandoned)
  2. Old Stone Arch Bridge (Clark County, built 1832, abandoned)
  3. Dearborn Street Drawbridge (Oldest) (Cook County, built 1834, replaced by new bridge)
  4. Old Stone Arch Bridge (Clark County, built 1837, open to traffic)
  5. Bernadotte Covered Bridge (Fulton County, built 1845, replaced by new bridge)
  6. Jack's Mill Bridge 13-36-02 #2x (Henderson County, built 1846, lost)
  7. First Bridge (Lee County, built 1846, destroyed by flood)
  8. I&M Canal Aux Sable Aqueduct (Grundy County, built 1847, open to traffic)
  9. I&M Canal Nettle Creek Aqueduct (Grundy County, built 1847, destroyed by flood)
  10. Cole Bridge (Peoria County, built 1848, replaced by new bridge)

Oldest Listed Extant Bridges

  1. Old Galena Trail Stone Arch Bridge (Carroll County, built 1830, abandoned)
  2. Old Stone Arch Bridge (Clark County, built 1832, abandoned)
  3. Old Stone Arch Bridge (Clark County, built 1837, open to traffic)
  4. I&M Canal Aux Sable Aqueduct (Grundy County, built 1847, open to traffic)
  5. Fountain Creek Bridge (Monroe County, built 1849, open to pedestrians)
  6. Fishers' Point Stone Arch Bridge (Hancock County, built 1850, open to pedestrians)
  7. IC - Leaf River Arch Bridge (Ogle County, built 1851, abandoned)
  8. IC - Leaf River Tributary Bridge (Ogle County, built 1851, abandoned)
  9. IC - 3rd Street Overpass (Lee County, built 1851, open to traffic)
  10. IC - 2nd Street Overpass (Lee County, built 1851, open to traffic)

By Design

  • Arch: 318 (8.5%)
    • Deck arch: 280 (7.5%)
      • Brick arch: 2 (0.05%)
      • Closed-spandrel arch: 116 (3.1%)
      • Open-spandrel arch: 26 (0.7%)
      • Ribbed closed-spandrel arch: 2 (0.05%)
      • Steel arch: 8 (0.2%)
      • Stone arch: 103 (2.8%)
    • Pony arch: 1 (0.03%)
    • Through arch: 17 (0.5%)
      • Marsh arch: 2 (0.05%)
      • Steel through arch: 15 (0.4%)

  • Beam: 692 (18.5%)
    • Stringer: 562 (15.0%)
      • Concrete stringer: 15 (0.4%)
      • Steel stringer: 395 (10.6%)
      • Timber stringer: 129 (3.4%)
    • Concrete tee beam: 101 (2.7%)

  • Culvert: 50 (1.3%)
    • Concrete culvert: 31 (0.8%)
    • Stone culvert: 10 (0.3%)

  • Ferry: 7 (0.2%)

  • Floating: 2 (0.05%)
    • Pontoon: 1 (0.03%)

  • Rigid frame: 37 (1.0%)
    • Concrete rigid frame: 36 (1.0%)
    • Steel rigid frame: 1 (0.03%)

  • Girder: 802 (21.4%)
    • Deck girder: 328 (8.8%)
      • Concrete deck girder: 23 (0.6%)
      • Deck plate girder: 294 (7.9%)
    • Pony/through girder: 407 (10.9%)
      • Concrete pony/through girder: 133 (3.6%)
      • Pony/through plate girder: 249 (6.7%)

  • Other: 100 (2.7%)

  • Slab: 214 (5.7%)

  • Suspension: 23 (0.6%)
    • Self-anchor suspension: 2 (0.05%)
    • Cable-stayed: 3 (0.08%)
    • Wire suspension: 17 (0.5%)

  • Truss: 1,396 (37.3%)
    • Bedstead pony truss: 35 (0.9%)
      • Bedstead double-intersection Warren pony truss: 2 (0.05%)
      • Bedstead Pratt pony truss: 23 (0.6%)
      • Bedstead Warren pony truss: 10 (0.3%)
    • Deck truss: 82 (2.2%)
      • Baltimore deck truss: 2 (0.05%)
      • Double-intersection Warren deck truss: 3 (0.08%)
      • Howe deck truss: 4 (0.1%)
      • Lattice deck truss: 4 (0.1%)
      • Other deck truss: 2 (0.05%)
      • Pratt deck truss: 20 (0.5%)
      • Warren deck truss: 14 (0.4%)
        • Warren deck truss with alternating verticals: 2 (0.05%)
      • Whipple deck truss: 3 (0.08%)
    • Modern truss: 10 (0.3%)
      • Modern pony truss: 5 (0.1%)
        • Modern bowstring pony truss: 2 (0.05%)
        • Modern polygonal Warren pony truss: 1 (0.03%)
        • Modern Pratt pony truss: 1 (0.03%)
        • Modern Warren pony truss: 1 (0.03%)
      • Modern through truss: 5 (0.1%)
        • Modern bowstring through truss: 3 (0.08%)
        • Modern polygonal Warren through truss: 1 (0.03%)
        • Modern Warren through truss: 1 (0.03%)
    • Pony truss: 587 (15.7%)
      • Bailey pony truss: 4 (0.1%)
      • Miller & Borcherding pony truss: 2 (0.05%)
      • Bowstring pony truss: 10 (0.3%)
      • Double-intersection Warren pony truss: 15 (0.4%)
      • Howe pony truss: 1 (0.03%)
      • Kingpost pony truss: 7 (0.2%)
      • Lattice pony truss: 4 (0.1%)
      • Parker pony truss: 1 (0.03%)
      • Polygonal Warren pony truss: 1 (0.03%)
        • Polygonal Warren pony truss with no verticals: 1 (0.03%)
      • Pratt pony truss: 143 (3.8%)
      • Half-hip Pratt pony truss: 19 (0.5%)
      • Queenpost pony truss: 5 (0.1%)
      • Truesdell pony truss: 1 (0.03%)
      • Warren pony truss: 52 (1.4%)
        • Warren pony truss with alternating verticals: 22 (0.6%)
        • Warren pony truss with no verticals: 1 (0.03%)
        • Warren pony truss with all verticals: 4 (0.1%)
    • Through truss: 680 (18.2%)
      • Baltimore through truss: 6 (0.2%)
      • Bowstring through truss: 11 (0.3%)
      • Burr arch-truss: 7 (0.2%)
      • Camelback through truss: 13 (0.3%)
      • Double-intersection Warren through truss: 2 (0.05%)
      • Hammond through truss: 1 (0.03%)
      • Howe through truss: 22 (0.6%)
      • K-Truss through truss: 1 (0.03%)
      • Lattice through truss: 23 (0.6%)
        • Quadrangular lattice through truss: 18 (0.5%)
        • Town lattice truss: 1 (0.03%)
      • Other through truss: 4 (0.1%)
      • Parker through truss: 43 (1.1%)
      • Pennsylvania through truss: 17 (0.5%)
      • Polygonal Warren through truss: 29 (0.8%)
        • Polygonal Warren through truss with sub-panels: 2 (0.05%)
        • Polygonal Warren through truss with all verticals: 12 (0.3%)
      • Post through truss: 4 (0.1%)
      • Pratt through truss: 282 (7.5%)
      • Warren through truss: 81 (2.2%)
        • Warren through truss with no verticals: 1 (0.03%)
        • Warren through truss with sub-panels: 5 (0.1%)
        • Warren through truss with all verticals: 12 (0.3%)
      • Whipple through truss: 12 (0.3%)

  • Tunnel: 12 (0.3%)

  • Unknown: 90 (2.4%)