New Hampshire Website Statistics

All Bridges

  • Total listed New Hampshire bridges: 292
  • Bridges with photos: 123 (42.1%)
  • Bridges with Street View: 82 (28.1%)
  • Bridges with GPS coordinates: 289 (99.0%)

  • Total photos: 793

Extant Bridges

  • Extant bridges: 268 (91.8% of all)
  • Bridges with photos: 107 (39.9% of extant)
  • Bridges with Street View: 79 (29.5% of extant)
  • Bridges with GPS coordinates: 265 (98.9% of extant)

Lost Bridges

  • Lost bridges: 23 (7.9% of all)
  • Bridges with photos: 14 (60.9% of lost)
  • Bridges with GPS coordinates: 23 (100.0% of lost)

Oldest Listed Bridges

  1. Bath/Haverhill Covered Bridge (Grafton County, built 1827, open to pedestrians)
  2. Thompson Covered Bridge (Cheshire County, built 1832, open to traffic)
  3. West Bath Road Bridge (Grafton County, built 1832, open to traffic)
  4. Coombs Bridge (Cheshire County, built 1837, open to traffic)
  5. Waterloo Bridge (Merrimack County, built 1840, open to traffic)
  6. Old Carr Bridge (Hillsborough County, built 1840, open to traffic)
  7. Corbin Bridge (Sullivan County, built 1845, open to traffic)
  8. Cheshire Railroad Stone Arch Bridge (Cheshire County, built 1847, open to pedestrians)
  9. Porter Road Bridge (Grafton County, built 1849, open to traffic)
  10. Smith Bridge Road Bridge (Grafton County, built 1850, open to traffic)

By Design

  • Arch: 99 (33.9%)
    • Deck arch: 93 (31.8%)
      • Closed-spandrel arch: 1 (0.3%)
      • Luten arch: 1 (0.3%)
      • Open-spandrel arch: 1 (0.3%)
      • Steel arch: 1 (0.3%)
      • Stone arch: 45 (15.4%)
    • Through arch: 5 (1.7%)
      • Steel through arch: 5 (1.7%)

  • Beam: 63 (21.6%)
    • Stringer: 59 (20.2%)
      • Concrete stringer: 1 (0.3%)
      • Timber stringer: 58 (19.9%)
    • Concrete tee beam: 4 (1.4%)

  • Culvert: 1 (0.3%)
    • Stone culvert: 1 (0.3%)

  • Rigid frame: 5 (1.7%)
    • Concrete rigid frame: 4 (1.4%)
    • Steel rigid frame: 1 (0.3%)

  • Girder: 5 (1.7%)
    • Deck girder: 2 (0.7%)
      • Deck plate girder: 1 (0.3%)
    • Pony/through girder: 2 (0.7%)
      • Pony/through plate girder: 2 (0.7%)

  • Other: 3 (1.0%)

  • Slab: 1 (0.3%)

  • Truss: 114 (39.0%)
    • Deck truss: 10 (3.4%)
      • Lenticular deck truss: 1 (0.3%)
      • Pratt deck truss: 3 (1.0%)
      • Warren deck truss: 3 (1.0%)
    • Pony truss: 14 (4.8%)
      • Howe pony truss: 2 (0.7%)
      • Lattice pony truss: 1 (0.3%)
      • Lenticular pony truss: 2 (0.7%)
      • Parker pony truss: 1 (0.3%)
      • Polygonal Warren pony truss: 1 (0.3%)
      • Pratt pony truss: 2 (0.7%)
      • Warren pony truss: 1 (0.3%)
        • Warren pony truss with alternating verticals: 1 (0.3%)
    • Through truss: 90 (30.8%)
      • Baltimore through truss: 2 (0.7%)
      • Bowstring through truss: 1 (0.3%)
      • Burr arch-truss: 1 (0.3%)
      • Howe through truss: 3 (1.0%)
      • Lattice through truss: 17 (5.8%)
        • Town lattice truss: 17 (5.8%)
      • Lenticular through truss: 1 (0.3%)
      • Long through truss: 5 (1.7%)
      • Multiple Kingpost through truss: 3 (1.0%)
      • Paddleford through truss: 12 (4.1%)
      • Parker through truss: 7 (2.4%)
      • Pennsylvania through truss: 3 (1.0%)
      • Pratt through truss: 18 (6.2%)
      • Queenpost through truss: 3 (1.0%)
      • Warren through truss: 9 (3.1%)
        • Warren through truss with all verticals: 1 (0.3%)

    • Unknown: 1 (0.3%)