South Dakota Website Statistics

All Bridges

  • Total listed South Dakota bridges: 511
  • Bridges with photos: 131 (25.6%)
  • Bridges with Street View: 83 (16.2%)
  • Bridges with GPS coordinates: 508 (99.4%)

  • Total photos: 914

Extant Bridges

  • Extant bridges: 384 (75.1% of all)
  • Bridges with photos: 107 (27.9% of extant)
  • Bridges with Street View: 78 (20.3% of extant)
  • Bridges with GPS coordinates: 382 (99.5% of extant)

Lost Bridges

  • Lost bridges: 99 (19.4% of all)
  • Bridges with photos: 8 (8.1% of lost)
  • Bridges with GPS coordinates: 98 (99.0% of lost)

Oldest Listed Bridges

  1. Banning Mill and Crossing (Minnehaha County, built 1884, collapsed)
  2. IC - Big Sioux River Bridge (Minnehaha County, built 1887, removed)
  3. Riverview Hotel Trail Bridge (Minnehaha County, built 1888, open to pedestrians)
  4. Riverdale Park Trail Bridge (Minnehaha County, built 1888, open to pedestrians)
  5. Ellis & Eastern - Big Sioux River Bridge (Brandon) (Minnehaha County, built 1889, abandoned)
  6. B&MR - Sheeps Canyon Bridge (Fall River County, built 1890, filled in)
  7. Abandoned EE- Split Rock Creek Bridge (Minnehaha County, built 1891, abandoned)
  8. EE - Elmen Park Bridge (Minnehaha County, built 1892, open to traffic)
  9. EE - Beadle Park Bridge (Minnehaha County, built 1893, open to traffic)
  10. Castlewood Bridge (Hamlin County, built 1894, unknown status)

By Design

  • Arch: 36 (7.0%)
    • Deck arch: 33 (6.5%)
      • Closed-spandrel arch: 11 (2.2%)
      • Open-spandrel arch: 1 (0.2%)
      • Steel arch: 2 (0.4%)
      • Stone arch: 16 (3.1%)
      • Timber arch: 2 (0.4%)
    • Through arch: 2 (0.4%)
      • Concrete through arch: 1 (0.2%)
      • Steel through arch: 1 (0.2%)

  • Beam: 48 (9.4%)
    • Stringer: 45 (8.8%)
      • Concrete stringer: 3 (0.6%)
      • Steel stringer: 32 (6.3%)
      • Timber stringer: 5 (1.0%)

  • Culvert: 5 (1.0%)
    • Concrete culvert: 2 (0.4%)

  • Floating: 1 (0.2%)
    • Pontoon: 1 (0.2%)

  • Girder: 18 (3.5%)
    • Deck girder: 10 (2.0%)
      • Concrete deck girder: 1 (0.2%)
      • Deck plate girder: 9 (1.8%)
    • Pony/through girder: 5 (1.0%)
      • Pony/through plate girder: 5 (1.0%)

  • Other: 4 (0.8%)

  • Slab: 10 (2.0%)

  • Truss: 380 (74.4%)
    • Bedstead pony truss: 5 (1.0%)
      • Bedstead Pratt pony truss: 4 (0.8%)
    • Deck truss: 9 (1.8%)
      • Double-intersection Warren deck truss: 1 (0.2%)
      • Pratt deck truss: 1 (0.2%)
      • Warren deck truss: 2 (0.4%)
    • Modern truss: 1 (0.2%)
      • Modern through truss: 1 (0.2%)
        • Modern Warren through truss: 1 (0.2%)
    • Pony truss: 260 (50.9%)
      • Bailey pony truss: 1 (0.2%)
      • Howe pony truss: 1 (0.2%)
      • Kingpost pony truss: 3 (0.6%)
      • Polygonal Warren pony truss: 6 (1.2%)
        • Polygonal Warren pony truss with alternating verticals: 2 (0.4%)
        • Polygonal Warren pony truss with all verticals: 1 (0.2%)
      • Pratt pony truss: 15 (2.9%)
      • Half-hip Pratt pony truss: 5 (1.0%)
      • Queenpost pony truss: 6 (1.2%)
      • Warren pony truss: 21 (4.1%)
        • Warren pony truss with alternating verticals: 3 (0.6%)
        • Warren pony truss with all verticals: 5 (1.0%)
    • Through truss: 103 (20.2%)
      • Camelback through truss: 1 (0.2%)
      • Lattice through truss: 17 (3.3%)
        • Quadrangular lattice through truss: 14 (2.7%)
        • Triple-intersection lattice through truss: 1 (0.2%)
      • Parker through truss: 8 (1.6%)
      • Pennsylvania through truss: 6 (1.2%)
      • Polygonal Warren through truss: 1 (0.2%)
      • Pratt through truss: 32 (6.3%)
      • Thacher through truss: 1 (0.2%)
      • Warren through truss: 13 (2.5%)
        • Warren through truss with all verticals: 3 (0.6%)

    • Tunnel: 4 (0.8%)

    • Unknown: 5 (1.0%)