Washington Website Statistics
All Bridges
- Total listed Washington bridges: 1,141
- Bridges with photos: 770 (67.5%)
- Bridges with Street View: 605 (53.0%)
- Bridges with GPS coordinates: 1,119 (98.1%)
- Total photos: 5,236
Extant Bridges
- Extant bridges: 907 (79.5% of all)
- Bridges with photos: 563 (62.1% of extant)
- Bridges with Street View: 562 (62.0% of extant)
- Bridges with GPS coordinates: 891 (98.2% of extant)
Lost Bridges
- Lost bridges: 222 (19.5% of all)
- Bridges with photos: 139 (62.6% of lost)
- Bridges with GPS coordinates: 216 (97.3% of lost)
Oldest Listed Bridges
- Plante's Ferry (site) (Spokane County, built 1851, lost)
- Lyons Ferry (Franklin County, built 1859, abandoned)
- Swantown Slough Bridge (Old (Thurston County, built 1869, lost)
- Yakima Greenway Trail - Naches River Bridge (Yakima County, built 1884, open to pedestrians)
- BN - Snake River Bridge (Old) (Walla Walla County, built 1884, replaced by new bridge)
- BN - Buckley Viaduct (King County, built 1887, removed)
- NP - Sammamish River Bridge (Old) (King County, built 1888, 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 - Skagit River Bridge (Skagit County, built 1888, abandoned)
Oldest Listed Extant Bridges
- Lyons Ferry (Franklin County, built 1859, abandoned)
- Yakima Greenway Trail - Naches River Bridge (Yakima County, built 1884, open to pedestrians)
- NP - Skagit River Bridge (Skagit County, built 1888, abandoned)
- 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 - Willapa River Bridge #2 (Pacific County, built 1896, open to pedestrians)
- NP - Wilkeson Creek Bridge (Pierce County, built 1896, abandoned)
- Red Mountain Railroad Bridge (Stevens County, built 1896, abandoned)
By Design
- Arch: 261 (22.9%)
- Deck arch: 237 (20.8%)
- Closed-spandrel arch: 63 (5.5%)
- Luten arch: 4 (0.4%)
- Open-spandrel arch: 36 (3.2%)
- Steel arch: 16 (1.4%)
- Stone arch: 1 (0.09%)
- Timber arch: 2 (0.2%)
- Through arch: 22 (1.9%)
- Concrete through arch: 5 (0.4%)
- Marsh arch: 1 (0.09%)
- Steel through arch: 15 (1.3%)
- Beam: 136 (11.9%)
- Stringer: 74 (6.5%)
- Concrete stringer: 9 (0.8%)
- Steel stringer: 20 (1.8%)
- Timber stringer: 34 (3.0%)
- Concrete tee beam: 53 (4.6%)
- Culvert: 2 (0.2%)
- Concrete culvert: 2 (0.2%)
- Ferry: 4 (0.4%)
- Floating: 4 (0.4%)
- Rigid frame: 10 (0.9%)
- Concrete rigid frame: 10 (0.9%)
- Girder: 106 (9.3%)
- Deck girder: 63 (5.5%)
- Concrete deck girder: 4 (0.4%)
- Deck plate girder: 57 (5.0%)
- Pony/through girder: 35 (3.1%)
- Concrete pony/through girder: 3 (0.3%)
- Pony/through plate girder: 32 (2.8%)
- Other: 23 (2.0%)
- Slab: 19 (1.7%)
- Suspension: 33 (2.9%)
- Cable-stayed: 7 (0.6%)
- Wire suspension: 24 (2.1%)
- Truss: 461 (40.4%)
- Deck truss: 54 (4.7%)
- Deck arch-truss: 1 (0.09%)
- Baltimore deck truss: 2 (0.2%)
- Double-intersection Warren deck truss: 1 (0.09%)
- Howe deck truss: 3 (0.3%)
- Pratt deck truss: 11 (1.0%)
- Warren deck truss: 23 (2.0%)
- Warren deck truss with all verticals: 3 (0.3%)
- Modern truss: 3 (0.3%)
- Modern deck truss: 1 (0.09%)
- Modern through truss: 2 (0.2%)
- Modern Warren through truss: 2 (0.2%)
- Pony truss: 47 (4.1%)
- Bailey pony truss: 3 (0.3%)
- Miller & Borcherding pony truss: 1 (0.09%)
- Howe pony truss: 3 (0.3%)
- Polygonal Warren pony truss: 7 (0.6%)
- Polygonal Warren pony truss with alternating verticals: 2 (0.2%)
- Pratt pony truss: 7 (0.6%)
- Warren pony truss: 14 (1.2%)
- Warren pony truss with all verticals: 4 (0.4%)
- Through truss: 347 (30.4%)
- Baltimore through truss: 5 (0.4%)
- Camelback through truss: 1 (0.09%)
- Double-intersection Warren through truss: 4 (0.4%)
- Howe through truss: 22 (1.9%)
- Lattice through truss: 3 (0.3%)
- Triple-intersection lattice through truss: 2 (0.2%)
- Parker through truss: 31 (2.7%)
- Pegram through truss: 1 (0.09%)
- Pennsylvania through truss: 18 (1.6%)
- Polygonal Warren through truss: 47 (4.1%)
- Polygonal Warren through truss with all verticals: 9 (0.8%)
- Pratt through truss: 84 (7.4%)
- Queenpost through truss: 1 (0.09%)
- Warren through truss: 85 (7.4%)
- Warren through truss with sub-panels: 1 (0.09%)
- Warren through truss with all verticals: 14 (1.2%)
- Tunnel: 60 (5.3%)
- Unknown: 22 (1.9%)