Bay Area Toll Bridges By: Rachel Sanders and Zeltzin Lucas

LOCATION: Connects Antioch TO Sacramento County.

California State Route 160 Crosses San Joaquin River MATERIAL: Steel Plated Girder OPENED: in 1978 COST: $34 million dollars for construction

Antioch Bridge

STRUCTURE: Truss Bridge LOCATION: Connects Martinez and Benicia COST:$1.2 billion used for construction OPENED: in 1962 MATERIAL: Fine white clay called kaolin

clays and fly ash

Benicia-Martinez bRIDGE

COST: $8 million to build OPENED:1927 LOCATION: Crosses Carquinez Strait STRUCTURE: Suspension bridge Other names: Zampa Bridge and Vallejo Bridge

Carquinez Bridge

OPENED 1982 LOCATION: Dumbarton Bridge crosses the Southern

portion of San Francisco Bay LOCATION: State Route 84 between San Mateo and

Alameda counties near Newark and East Palo Alto 1982 STRUCTURE COST: $70 million MATERIAL: Steel box girder and pre-stressed concrete approach spans

Dumbarton Bridge

STRUCTURE: Suspension bridge spanning the Golden Gate strait

OPEN: Construction begin January 5, 1933 END: Construction end April 19, 1937 Connects San Francisco Peninsula with Marin

County

Golden Gate Bridge

LOCATION: Interstate 580 between Contra Costa and Marin counties

STRUCTURE: Cantilever and truss COST: $66 million OPENED: September 1956

Richmond-San rafael bridge

LOCATION: San Francisco and Oakland MATERIAL: Steel and Concrete STRUCTURE: Double- decked suspension

spans OPEN: Construction began July 8,1933,

West and East opened Nov 12, 1936 COST: New one cost $6.5 billion

San francisco-oakland bay bridge

LOCATION: State Route 92 between San Mateo and Alameda counties

STRUCTURE: Steel box girder and concrete trestle approach spans

COST:Original structure: $70 millionWidened structure: $200 million

San mateo-hayward bridge