San Francisco-Oakland Bay Bridge
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 also a jewel along the San Francisco waterfront.
The San Francisco-Oakland Bay Bridge 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.
The design of the new East Span — which opened in September 2013 — 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.
The Bay Lights installation – made of 25,000 LEDs and designed by artist Leo Villareal – lit up the Bay Bridge from 2013 (to commemorate the 75th anniversary of the Bay Bridge) through 2023.
Bridge Facts At-A-Glance
Location: | Interstate 80, between San Francisco and Alameda counties |
Structure: | Suspension, tunnel, skyway |
Length: | 8.4 miles (including approaches and toll plaza) |
Vertical Clearance: | 220 feet |
Channel Span: | 1,400 feet |
Opened: |
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Cost: |
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Auto Toll: |
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Collection: | One way, westbound, in Oakland |
Traffic Lanes: | Five lanes in each direction |
FY 2022-23 Total Toll-Paid Vehicles: | 42,753,377 |
FY 2022-23 Total Tolls Collected: | $274,029,625 |
Bridge Path Counter Data: | Access bicycle and pedestrian counter data |
See vehicle traffic and public transit ridership numbers from 2019 to the present.