California Website Statistics
All Bridges
- Total listed California bridges: 1,426
- Bridges with photos: 1,141 (80.0%)
- Bridges with Street View: 893 (62.6%)
- Bridges with GPS coordinates: 1,405 (98.5%)
- Total photos: 8,668
Extant Bridges
- Extant bridges: 1,255 (88.0% of all)
- Bridges with photos: 990 (78.9% of extant)
- Bridges with Street View: 803 (64.0% of extant)
- Bridges with GPS coordinates: 1,241 (98.9% of extant)
Lost Bridges
- Lost bridges: 141 (9.9% of all)
- Bridges with photos: 91 (64.5% of lost)
- Bridges with GPS coordinates: 138 (97.9% of lost)
Oldest Listed Bridges
- Bidwell Bar Suspension Bridge (original 1856 bridge) (Butte County, built 1856, open to pedestrians)
- Folsom Railroad Bridge (Sacramento County, built 1858, lost)
- Main Street Bridge (Napa County, built 1860, open to traffic)
- Oregon Creek Covered Bridge (Yuba County, built 1860, closed to all traffic)
- Folsom Suspension Bridge (Sacramento County, built 1861, collapsed)
- Ecklon Bridge (Sacramento County, built 1862, collapsed)
- Bridgeport Covered Bridge (Nevada County, built 1862, closed to all traffic)
- Cut Stone Bridge (San Mateo County, built 1863, open to pedestrians)
- Knights Ferry Covered Bridge (Stanislaus County, built 1864, open to pedestrians)
- Tehama Railroad Bridge (Tehama County, built 1871, destroyed by flood)
By Design
- Arch: 435 (30.5%)
- Deck arch: 420 (29.5%)
- Closed-spandrel arch: 141 (9.9%)
- Iron arch: 1 (0.07%)
- Luten arch: 3 (0.2%)
- Open-spandrel arch: 105 (7.4%)
- Steel arch: 17 (1.2%)
- Stone arch: 58 (4.1%)
- Pony arch: 2 (0.1%)
- Concrete pony arch: 2 (0.1%)
- Through arch: 12 (0.8%)
- Concrete through arch: 5 (0.4%)
- Steel through arch: 6 (0.4%)
- Beam: 253 (17.7%)
- Stringer: 144 (10.1%)
- Concrete stringer: 20 (1.4%)
- Steel stringer: 58 (4.1%)
- Timber stringer: 61 (4.3%)
- Concrete tee beam: 91 (6.4%)
- Culvert: 8 (0.6%)
- Concrete culvert: 3 (0.2%)
- Stone culvert: 2 (0.1%)
- Ferry: 6 (0.4%)
- Rigid frame: 11 (0.8%)
- Concrete rigid frame: 8 (0.6%)
- Steel rigid frame: 3 (0.2%)
- Girder: 89 (6.2%)
- Deck girder: 54 (3.8%)
- Concrete deck girder: 14 (1.0%)
- Deck plate girder: 39 (2.7%)
- Pony/through girder: 24 (1.7%)
- Concrete pony/through girder: 5 (0.4%)
- Concrete curved chord through girder: 2 (0.1%)
- Pony/through plate girder: 17 (1.2%)
- Other: 38 (2.7%)
- Slab: 14 (1.0%)
- Suspension: 21 (1.5%)
- Cable-stayed: 1 (0.07%)
- Wire suspension: 20 (1.4%)
- Truss: 497 (34.9%)
- Deck truss: 84 (5.9%)
- Bailey deck truss: 9 (0.6%)
- Baltimore deck truss: 1 (0.07%)
- Canticrete deck truss: 2 (0.1%)
- Howe deck truss: 1 (0.07%)
- Pratt deck truss: 12 (0.8%)
- Scissors deck truss: 1 (0.07%)
- Warren deck truss: 35 (2.5%)
- Warren deck truss with all verticals: 2 (0.1%)
- Whipple deck truss: 1 (0.07%)
- Half-through truss: 1 (0.07%)
- Pratt half-through truss: 1 (0.07%)
- Pony truss: 180 (12.6%)
- Bailey pony truss: 21 (1.5%)
- Double-intersection Warren pony truss: 2 (0.1%)
- Howe pony truss: 2 (0.1%)
- Kingpost pony truss: 3 (0.2%)
- Parker pony truss: 1 (0.07%)
- Polygonal Warren pony truss: 11 (0.8%)
- Polygonal Warren pony truss with all verticals: 1 (0.07%)
- Pratt pony truss: 27 (1.9%)
- Queenpost pony truss: 3 (0.2%)
- Vierendeel pony truss: 3 (0.2%)
- Warren pony truss: 43 (3.0%)
- Warren pony truss with all verticals: 2 (0.1%)
- Through truss: 232 (16.3%)
- Baltimore through truss: 7 (0.5%)
- Bowstring through truss: 2 (0.1%)
- Camelback through truss: 9 (0.6%)
- Howe through truss: 14 (1.0%)
- K-Parker through truss: 1 (0.07%)
- K-Truss through truss: 1 (0.07%)
- Kingpost through truss: 1 (0.07%)
- Parker through truss: 20 (1.4%)
- Pegram through truss: 1 (0.07%)
- Pennsylvania through truss: 12 (0.8%)
- Polygonal Warren through truss: 4 (0.3%)
- Pratt through truss: 105 (7.4%)
- Queenpost through truss: 2 (0.1%)
- Smith through truss: 1 (0.07%)
- Warren through truss: 32 (2.2%)
- Warren through truss with sub-panels: 1 (0.07%)
- Warren through truss with all verticals: 5 (0.4%)
- Tunnel: 43 (3.0%)
- Unknown: 11 (0.8%)