Washington Website Statistics
All Bridges
- Total listed Washington bridges: 1,294
- Bridges with photos: 899 (69.5%)
- Bridges with Street View: 662 (51.2%)
- Bridges with GPS coordinates: 1,288 (99.5%)
- Total photos: 6,675
Extant Bridges
- Extant bridges: 993 (76.7% of all)
- Bridges with photos: 662 (66.7% of extant)
- Bridges with Street View: 606 (61.0% of extant)
- Bridges with GPS coordinates: 988 (99.5% of extant)
Lost Bridges
- Lost bridges: 280 (21.6% of all)
- Bridges with photos: 197 (70.4% of lost)
- Bridges with GPS coordinates: 280 (100.0% of lost)
Oldest Listed Bridges
- Plante's Ferry (site) (Spokane County, built 1851, lost)
- Swantown Slough Bridge (Old (Thurston County, built 1869, lost)
- BN - Snake River Bridge (Old) (Walla Walla County, built 1884, replaced by new bridge)
- Yakima Greenway Trail - Naches River Bridge (Yakima County, built 1884, open to pedestrians)
- NP - Columbia River Swing Bridge (Old) (Benton County, built 1887, replaced by new bridge)
- SLS&E High Bridge (Spokane County, built 1888, removed)
- SLS&E - Snohomish River Bridge (Snohomish County, built 1888, replaced by new bridge)
- NP - Sammamish River Bridge (Old) (King County, built 1888, replaced by new bridge)
- Monroe Street Bridge (First) (Spokane County, built 1889, destroyed by fire)
- Avenue D Swing Bridge (1889) (Snohomish County, built 1889, replaced by new bridge)
Oldest Listed Extant Bridges
- Yakima Greenway Trail - Naches River Bridge (Yakima County, built 1884, open to pedestrians)
- CWRR - Yakima River Bridge (Yakima County, built 1891, open to traffic)
- NRM - South Fork Snoqualmie River Bridge (King County, built 1891, open to traffic)
- BNSF - Rock Island Bridge (Douglas County, built 1892, open to traffic)
- Yakima Valley Trolley - Naches River Bridge (Yakima County, built 1895, open to traffic)
- Willapa Hills Trail - Newaukum River Bridge (Lewis County, built 1896, open to pedestrians)
- NP - Wilkeson Creek Bridge (Pierce County, built 1896, abandoned)
- Red Mountain Railroad Bridge (Stevens County, built 1896, abandoned)
- Willapa Hills Trail - Willapa River Bridge #2 (Pacific County, built 1896, open to pedestrians)
- Willapa Hills Trail - Willapa River Bridge #3 (Pacific County, built 1896, open to pedestrians)
By Design
- Arch: 264 (20.4%)
- Deck arch: 239 (18.5%)
- Closed-spandrel arch: 67 (5.2%)
- Luten arch: 5 (0.4%)
- Open-spandrel arch: 37 (2.9%)
- Steel arch: 16 (1.2%)
- Stone arch: 1 (0.08%)
- Timber arch: 2 (0.2%)
- Pony arch: 1 (0.08%)
- Concrete pony arch: 1 (0.08%)
- Through arch: 21 (1.6%)
- Concrete through arch: 5 (0.4%)
- Steel through arch: 15 (1.2%)
- Beam: 166 (12.8%)
- Stringer: 90 (7.0%)
- Concrete stringer: 12 (0.9%)
- Steel stringer: 24 (1.9%)
- Timber stringer: 40 (3.1%)
- Concrete tee beam: 67 (5.2%)
- Culvert: 2 (0.2%)
- Concrete culvert: 2 (0.2%)
- Ferry: 6 (0.5%)
- Floating: 4 (0.3%)
- Rigid frame: 11 (0.9%)
- Concrete rigid frame: 11 (0.9%)
- Girder: 141 (10.9%)
- Deck girder: 85 (6.6%)
- Concrete deck girder: 7 (0.5%)
- Deck plate girder: 74 (5.7%)
- Pony/through girder: 47 (3.6%)
- Concrete pony/through girder: 4 (0.3%)
- Pony/through plate girder: 42 (3.2%)
- Other: 29 (2.2%)
- Slab: 20 (1.5%)
- Suspension: 34 (2.6%)
- Cable-stayed: 7 (0.5%)
- Wire suspension: 25 (1.9%)
- Truss: 525 (40.6%)
- Deck truss: 57 (4.4%)
- Deck arch-truss: 1 (0.08%)
- Baltimore deck truss: 2 (0.2%)
- Double-intersection Warren deck truss: 1 (0.08%)
- Howe deck truss: 4 (0.3%)
- Pratt deck truss: 11 (0.9%)
- Warren deck truss: 24 (1.9%)
- Warren deck truss with all verticals: 3 (0.2%)
- Modern truss: 5 (0.4%)
- Modern deck truss: 1 (0.08%)
- Modern pony truss: 1 (0.08%)
- Modern Pratt pony truss: 1 (0.08%)
- Modern through truss: 3 (0.2%)
- Modern Warren through truss: 3 (0.2%)
- Pony truss: 57 (4.4%)
- Bailey pony truss: 3 (0.2%)
- Miller & Borcherding pony truss: 1 (0.08%)
- Howe pony truss: 3 (0.2%)
- Kingpost pony truss: 1 (0.08%)
- Polygonal Warren pony truss: 7 (0.5%)
- Polygonal Warren pony truss with alternating verticals: 2 (0.2%)
- Pratt pony truss: 7 (0.5%)
- Warren pony truss: 15 (1.2%)
- Warren pony truss with all verticals: 5 (0.4%)
- Through truss: 397 (30.7%)
- Baltimore through truss: 7 (0.5%)
- Camelback through truss: 2 (0.2%)
- Double-intersection Warren through truss: 4 (0.3%)
- Howe through truss: 28 (2.2%)
- Lattice through truss: 3 (0.2%)
- Triple-intersection lattice through truss: 2 (0.2%)
- Parker through truss: 33 (2.6%)
- Pegram through truss: 1 (0.08%)
- Pennsylvania through truss: 21 (1.6%)
- Polygonal Warren through truss: 51 (3.9%)
- Polygonal Warren through truss with alternating verticals: 1 (0.08%)
- Polygonal Warren through truss with sub-panels: 1 (0.08%)
- Polygonal Warren through truss with all verticals: 10 (0.8%)
- Pratt through truss: 105 (8.1%)
- Queenpost through truss: 1 (0.08%)
- Warren through truss: 91 (7.0%)
- Warren through truss with sub-panels: 2 (0.2%)
- Warren through truss with all verticals: 14 (1.1%)
- Tunnel: 68 (5.3%)
- Unknown: 24 (1.9%)