FACTS AT A GLANCE
LOCATION: Interstate 80, between San Francisco and Alameda
STRUCTURE: Suspension, tunnel, skyway
LENGTH: 8.4 miles (including approaches and toll plaza)
VERTICAL CLEARANCE: 220 feet
CHANNEL SPAN: 1,400 feet
- Original Structure: November 1936
- New Structure (Just the Eastern Span): September 2013
- 1936 Structure: $77 million (including the Transbay Transit Terminal)
- 2013 Structure (Just the Eastern Span): $6.4 billion
AUTO TOLL: Varies (see below)
Weekday Peak Autos: $6.00
Weekday Peak Carpools: $2.50
Weekday Non-Peak Autos: $4.00
COLLECTION: One way, westbound, in Oakland
TRAFFIC LANES: Five lanes in each direction
FY 2012-13 TOTAL TOLL-PAID VEHICLES: 45,071,936
FY 2012-13 TOTAL TOLLS COLLECTED: $228,291,245
The San Francisco-Oakland Bay Bridge is the region's workhorse bridge, carrying
more than a third of the traffic of all of the state-owned bridges combined.
It is made up of two bridge segments: a skyway structure/single anchored suspension bridge between Oakland
and Yerba Buena Island, and a suspension span from the island to San Francisco.
Connecting the two is the largest diameter bore tunnel in the world.
Seismic retrofit of the western span of the bridge was completed in 2004.
The original eastern span, damaged in the 1989 Loma Prieta earthquake and subsequently
repaired, was replaced on September 2, 2013.
The design of the new east span selected by the Bay Area Toll Authority
in 1998 features a single-tower, self-anchored suspension bridge for
the segment of the bridge that crosses the shipping channel, and a skyway
structure over the shallower waters close to the Oakland shore.