San Francisco–Oakland Bay Bridge
Coordinates37°49′5″N 122°20′48″W / 37.81806°N 122.34667°W / 37.81806; -122.34667Coordinates: 37°49′5″N 122°20′48″W / 37.81806°N 122.34667°W / 37.81806; -122.34667
CrossesSan Francisco Bay
via YBI
LocaleSan Francisco and Oakland, California, United States
OwnerState of California
Maintained byCalifornia Department of Transportation and the Bay Area Toll Authority
ID number
  • 34 0003 (West)
  • 34 0004 (YBI Tunnel)
  • 33 0025 (East)
DesignDouble-decked suspension spans (two, connected by center anchorage), tunnel, cast-in-place concrete transition span, self-anchored suspension span, precast segmental concrete viaduct
MaterialSteel, concrete
Total lengthWest: 10,304 ft (3,141 m)
East span: 10,176 ft (3,102 m)
Total: 4.46 miles (7.18 km)
excluding approaches
WidthWest: 5 traffic lanes totaling 57.5 ft (17.5 m)
East: 10 traffic lanes totaling 258.33 ft (78.74 m)
HeightWest: 526 ft (160 m)
Longest spanWest: two main spans
2,310 ft (704 m)
East: one main span
1,400 ft (430 m)
Clearance aboveWestbound: 14 feet (4.3 m), with additional clearance in some lanes
Eastbound: 14.67 feet (4.47 m)
Clearance belowWest: 220 feet (67 m)
East: 136 feet (41 m)
DesignerCharles H. Purcell
Construction startJuly 8, 1933
OpenedNovember 12, 1936; 82 years ago (1936-11-12)
Daily traffic260,000
TollCars (east span, westbound only)
$7.00 (rush hours)
$2.50 (carpool rush hours)
$5.00 (weekday non-rush hours)
$6.00 (weekend all day)