Benicia-Martinez Bridge

Built to replace the ferries crossing the Carquinez Strait between Benicia and Martinez, the Benicia-Martinez Bridge is now a bustling span, and was the first of Northern California's bridges to feature an open road tolling system.

John Huseby

While it took a half-century of traffic growth to require a bridge to replace the ferries crossing the Carquinez Strait between Benicia and Martinez, it took only a couple of decades for ballooning traffic on Interstates 680 and 780 to overwhelm the Benicia-Martinez Bridge, also known as the George Miller Jr. Bridge.

To accommodate the growth, the Bay Area Transit Authority (BATA) and Caltrans completed a second, parallel span that carries five lanes of northbound traffic. The toll plaza on the bridge features Northern California's first open road tolling system, allowing FasTrak® customers to travel through the toll plaza at freeway speeds.

Bikes & Pedestrians

A new bicycle and pedestrian pathway on the bridge in 2009. How many people cross each day?

See the data.
A senior riding a bicycle
Seismic Safety

In 2009, the original span of the Benicia-Martinez was seismically retrofitted, and then converted to carry four lanes of southbound traffic.

Seismic retrofit work on the Benicia-Martinez Bridge
Bridge Tolls

Find information about bridge tolls and more.

Visit 511.org.
A toll plaza at dusk

Bridge Facts At-A-Glance

Location: Interstate 680 between Solano and Contra Costa counties
Structure: Deck truss
Length: 1.2 miles
Vertical Clearance: 138 feet
Channel Span: 528 feet
Opened: September 1962 (widened in 1991, parallel structure in 2007)
  • Original Structure - $25 million
  • 2007 Parallel Structure- $1.2 billion
Auto Toll: $7
Carpools: $3.50
Collection: One-way, northbound in Martinez
Traffic Lanes: Four in southern direction, five in northern direction
FY 2022-23 Total Toll-Paid Vehicles: 19,849,907
FY 2022-23 Total Tolls Collected: $137,709,891
Bridge Path Counter Data: Access bicycle and pedestrian counter data
Monthly Transportation Statistics

See vehicle traffic and public transit ridership numbers from 2019 to the present.

Get the data.
Did You Know?

The second span of the Benicia-Martinez Bridge is named in honor of Congressman George Miller, who is the son of late State Assemblymember and state Senator George Miller, Jr.

Regional Measure 1

Regional Measure 1, approved by Bay Area voters in 1988, raised tolls on the Bay Area’s seven state-owned toll bridges to fund bridge improvements and parkway construction.