Carquinez Bridge

Replaced with a beautiful suspension bridge in 2003, the Carquinez Bridge carries vehicles, bikes and pedestrians westbound across the Carquinez Strait. (The eastbound span carries vehicles only.)

Image
Credit
Tom Paiva

The Carquinez Bridge is actually two bridges. Located near Vallejo, on Interstate 80 between Contra Costa and Solano counties, the original crossing opened in 1927. To accommodate the ever-increasing traffic flow on I-80, in 1958 Caltrans constructed a parallel bridge to function as the eastbound span.

The original span was replaced in 2003 by a graceful suspension bridge. It carries westbound vehicular traffic across the Carquinez Strait, as well as bicycles and pedestrians on a bicycle and pedestrian pathway.

Archival photo of the Carquinez Bridge
Did You Know?

The Carquinez Bridge, also known as the Alfred Zampa Memorial Bridge, is named for the late Bay Area ironworker Al Zampa, who helped construct the original Carquinez Bridge and other Bay Area toll bridges.

Bridge Facts At-A-Glance

LOCATION: Interstate 80 between Contra Costa and Solano counties near Vallejo
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:
  • 1927 Structure: $8 million
  • 1958 Structure: $38 million
  • 2003 Structure: $240 million
AUTO TOLL: $6
CARPOOLS: $3
COLLECTION: One way, eastbound in Vallejo
TRAFFIC LANES:
  • 1927 structure: demolished
  • 1958 structure: four lanes eastbound
  • 2003 structure: four lanes westbound
FY 2018-19 TOTAL TOLL-PAID VEHICLES: 22,022,917
FY 2018-19 TOTAL TOLLS COLLECTED: $130,142,291
BRIDGE PATH COUNTER DATA: Access bicycle and pedestrian counter data