California Website Statistics
All Bridges
- Total listed California bridges: 2,468
- Bridges with photos: 1,771 (71.8%)
- Bridges with Street View: 1,437 (58.2%)
- Bridges with GPS coordinates: 2,462 (99.8%)
- Total photos: 13,054
Extant Bridges
- Extant bridges: 1,910 (77.4% of all)
- Bridges with photos: 1,337 (70.0% of extant)
- Bridges with Street View: 1,261 (66.0% of extant)
- Bridges with GPS coordinates: 1,907 (99.8% of extant)
Lost Bridges
- Lost bridges: 489 (19.8% of all)
- Bridges with photos: 316 (64.6% of lost)
- Bridges with GPS coordinates: 488 (99.8% of lost)
Oldest Listed Bridges
- Redwood City Bridge (San Mateo County, built 1854, lost)
- Bidwell Bar Bridge (1856) (Butte County, built 1856, open to pedestrians)
- Sacramento-Yolo Bridge (Sacramento County, built 1858, lost)
- California Central Railroad - American River Bridge (Sacramento County, built 1858, replaced by new bridge)
- Main Street Bridge (Napa County, built 1860, open to traffic)
- Oregon Creek Covered Bridge 05-58-01 (Yuba County, built 1860, open to traffic)
- Folsom Suspension Bridge (Sacramento County, built 1861, collapsed)
- Pine Street Bridge (Old) (Nevada County, built 1862, replaced by new bridge)
- Bridgeport Covered Bridge 05-29-01 (Nevada County, built 1862, closed to all traffic)
- Ecklon Bridge (Sacramento County, built 1862, collapsed)
Oldest Listed Extant Bridges
- Bidwell Bar Bridge (1856) (Butte County, built 1856, open to pedestrians)
- Main Street Bridge (Napa County, built 1860, open to traffic)
- Oregon Creek Covered Bridge 05-58-01 (Yuba County, built 1860, open to traffic)
- Bridgeport Covered Bridge 05-29-01 (Nevada County, built 1862, closed to all traffic)
- SSF Centennial Trail - Cut Stone Bridge (San Mateo County, built 1863, open to pedestrians)
- P&SVRR - Latrobe Creek Bridge (El Dorado County, built 1863-1864, open to traffic)
- Knights Ferry Covered Bridge 05-50-01 (Stanislaus County, built 1864, open to pedestrians)
- Foster Bridge (Los Angeles County, built 1872, open to traffic)
- Powder Works Bridge 05-44-03 (Santa Cruz County, built 1872, open to traffic)
- Hammond Bridge (Humboldt County, built 1875, open to pedestrians)
By Design
- Arch: 504 (20.4%)
- Deck arch: 483 (19.6%)
- Closed-spandrel arch: 175 (7.1%)
- Corrugated multi-plate arch: 4 (0.2%)
- Iron arch: 2 (0.08%)
- Luten arch: 4 (0.2%)
- Open-spandrel arch: 113 (4.6%)
- Steel arch: 24 (1.0%)
- Stone arch: 64 (2.6%)
- Timber arch: 2 (0.08%)
- Pony arch: 6 (0.2%)
- Concrete pony arch: 5 (0.2%)
- Through arch: 14 (0.6%)
- Concrete through arch: 5 (0.2%)
- Steel through arch: 8 (0.3%)
- Beam: 522 (21.2%)
- Stringer: 336 (13.6%)
- Concrete stringer: 34 (1.4%)
- Steel stringer: 138 (5.6%)
- Timber stringer: 153 (6.2%)
- Concrete tee beam: 159 (6.4%)
- Culvert: 20 (0.8%)
- Concrete culvert: 9 (0.4%)
- Stone culvert: 2 (0.08%)
- Ferry: 14 (0.6%)
- Rigid frame: 15 (0.6%)
- Concrete rigid frame: 12 (0.5%)
- Steel rigid frame: 3 (0.1%)
- Girder: 288 (11.7%)
- Deck girder: 166 (6.7%)
- Concrete deck girder: 31 (1.3%)
- Deck plate girder: 122 (4.9%)
- Pony/through girder: 97 (3.9%)
- Concrete pony/through girder: 15 (0.6%)
- Concrete curved chord through girder: 1 (0.04%)
- Pony/through plate girder: 80 (3.2%)
- Other: 41 (1.7%)
- Slab: 41 (1.7%)
- Suspension: 53 (2.1%)
- Cable-stayed: 6 (0.2%)
- Wire suspension: 44 (1.8%)
- Truss: 753 (30.5%)
- Deck truss: 107 (4.3%)
- Bailey deck truss: 4 (0.2%)
- Baltimore deck truss: 1 (0.04%)
- Canticrete deck truss: 2 (0.08%)
- Double-intersection Warren deck truss: 6 (0.2%)
- Howe deck truss: 3 (0.1%)
- Pratt deck truss: 14 (0.6%)
- Scissors deck truss: 1 (0.04%)
- Warren deck truss: 41 (1.7%)
- Warren deck truss with alternating verticals: 2 (0.08%)
- Warren deck truss with all verticals: 4 (0.2%)
- Whipple deck truss: 1 (0.04%)
- Half-through truss: 2 (0.08%)
- Pratt half-through truss: 2 (0.08%)
- Modern truss: 13 (0.5%)
- Modern pony truss: 6 (0.2%)
- Modern bowstring pony truss: 1 (0.04%)
- Modern polygonal Warren pony truss: 2 (0.08%)
- Modern Pratt pony truss: 2 (0.08%)
- Modern through truss: 7 (0.3%)
- Modern bowstring through truss: 1 (0.04%)
- Modern polygonal Warren through truss: 1 (0.04%)
- Modern Pratt through truss: 1 (0.04%)
- Modern Warren through truss: 4 (0.2%)
- Pony truss: 254 (10.3%)
- Bailey pony truss: 49 (2.0%)
- Miller & Borcherding pony truss: 1 (0.04%)
- Double-intersection Warren pony truss: 4 (0.2%)
- Howe pony truss: 5 (0.2%)
- Kingpost pony truss: 5 (0.2%)
- Parker pony truss: 2 (0.08%)
- Polygonal Warren pony truss: 16 (0.6%)
- Polygonal Warren pony truss with alternating verticals: 1 (0.04%)
- Polygonal Warren pony truss with no verticals: 1 (0.04%)
- Polygonal Warren pony truss with all verticals: 7 (0.3%)
- Pratt pony truss: 31 (1.3%)
- Half-hip Pratt pony truss: 3 (0.1%)
- Queenpost pony truss: 5 (0.2%)
- Vierendeel pony truss: 3 (0.1%)
- Warren pony truss: 66 (2.7%)
- Warren pony truss with alternating verticals: 5 (0.2%)
- Warren pony truss with all verticals: 9 (0.4%)
- Through truss: 372 (15.1%)
- Baltimore through truss: 12 (0.5%)
- Bowstring through truss: 1 (0.04%)
- Camelback through truss: 16 (0.6%)
- Howe through truss: 27 (1.1%)
- K-Parker through truss: 1 (0.04%)
- K-Truss through truss: 1 (0.04%)
- Kingpost through truss: 1 (0.04%)
- Parker through truss: 27 (1.1%)
- Pegram through truss: 1 (0.04%)
- Pennsylvania through truss: 19 (0.8%)
- Polygonal Warren through truss: 7 (0.3%)
- Polygonal Warren through truss with no verticals: 1 (0.04%)
- Pratt through truss: 162 (6.6%)
- Queenpost through truss: 1 (0.04%)
- Smith through truss: 1 (0.04%)
- Warren through truss: 46 (1.9%)
- Warren through truss with sub-panels: 1 (0.04%)
- Warren through truss with all verticals: 8 (0.3%)
- Whipple through truss: 1 (0.04%)
- Tunnel: 164 (6.6%)
- Unknown: 53 (2.1%)