Carquinez Bridge

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Located on Interstate 80 (I-80) between Contra Costa and Solano counties, the Carquinez Bridge has served the needs of North Bay travelers since 1927.

The Carquinez Bridge connects Crockett on the south side of Carquinez Strait and Vallejo on the north side. Eastbound traffic is handled by a cantilever bridge that opened in 1958. Westbound traffic is handled by a suspension bridge which opened in 2003.


Full Weekend Closure of Westbound I-80 on the Carquinez Bridge
Friday, August 21, at 10:00 PM until Monday, August 24, at 3:00AM

Caltrans construction is scheduled to implement a full closure of Westbound Interstate 80 at the Carquinez (Alfred Zampa Memorial) Bridge on Friday, August 21, 2026, at 10:00 PM. The closure will continue until Monday, August 24, 2026, at 3:00 AM. Construction crews will be working the full weekend to repave the entire westbound bridge deck. Caltrans maintenance crews will also be working in Vallejo from the foot of the bridge to Highway 780 to complete work including maintenance, vegetation control, and litter/graffiti clean up among other tasks.
Click here to read the full traffic advisory

For more information on this project, please visit the Carquinez Bridge Projects webpage

Additional project resources including downloadable maps, image galleries, and video clips can be found on the Carquinez Bridge Media Bar


What’s New

Caltrans is committed to maintaining and improving safety, reliability, and connectivity along the Richmond–San Rafael Bridge (RSRB). Several ongoing and upcoming projects are currently in progress to repair bridge infrastructure, improve communication systems, and prepare for future open road tolling operations.

Some current and planned work:

  • Al Zampa Bridge Work
  • Upcoming Project: Open Road Tolling (ORT)

Visit our Projects page to get more information on current and planned work.

History & Facts

Two workers use a machine to wrap the cable on the Al Zampa span during construction of the western span of the Carquinez Bridge.

Located on Interstate 80 (I-80) between Contra Costa and Solano counties, the Carquinez Bridge has served the needs of North Bay travelers since 1927.

The Carquinez Bridge connects Crockett on the south side of Carquinez Strait and Vallejo on the north side.

Spanning 3,465 feet, or .66 miles, the Carquinez Bridge has taken on many forms. Originally, it was a single cantilever bridge in 1927 connecting to the rest of the Lincoln Highway, a historic transcontinental roadway, what is now I-80.

In 1958 a second parallel cantilever bridge was installed to relieve congestion and handle the eastbound traffic, while the original 1927 span handled westbound traffic. After the 1989 Loma Prieta and 1994 Northridge earthquakes, state engineers found replacing the original 1927 span would cost less than the substantial structural reinforcing and seismic upgrades needed.

Work then began on the new westbound suspension bridge, which opened in 2003. It is dedicated to Al Zampa, an ironworker who worked on a number of the San Francisco Bay Area bridges, including the original 1927 Carquinez span. 

Tolls are collected in the eastbound direction (entering Vallejo). The toll is $8.50 for FasTrak, license plate accounts, one-time payments or invoices. A carpool discount of $4.25 is available for qualifying vehicles using the HOV lane.

Location: Interstate 80 between Contra Costa and Solano counties
Structure: Steel cantilever truss (eastbound span)
Main cable catenary suspension (westbound span)
Length: 0.8 miles (eastbound span)
0.7 miles (westbound span)
Vertical Clearance: 148 feet
Channel Span: 1,100 feet
Tower Height: 314 feet (eastbound span)
420 feet (north tower of westbound span)
403 feet (south tower of westbound span)
Opened: Original structure: May 1927
Eastbound structure: November 1958
Westbound Structure: November 2003
Cost: $66 million
Auto Toll: $8.50
Carpools: $4.25
Collection: One way, eastbound in Vallejo
Traffic Lanes: Four lanes in each direction
FY 2022-23 Total Toll-Paid Vehicles: 20,554,928
FY 2022-23 Total Tolls Collected: $138,484,029
Bridge Path Counter Data: Access bicycle and pedestrian counter data (link is external)

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