San Francisco Oakland Bay Bridge
Self Anchoring Suspension Bridge
Quality Control Field Engineering for Caltrans
Asymmetrical single tower
One continuous main cable
Two bridge decks super-elevated and curved
Largest span of its kind in the world
Length: 2,047 feet; Height of tower: 525 feet
Estimated construction $1.41 billion
The vision of the world’s largest Self-Anchored Suspension Span (SAS) is a reality. Weight of the 35,200-ton decks are supported by the tower, main cable and suspender ropes. The single 1-mile-long main cable, made up of 17,399 steel wire strands, is the longest single looped suspension bridge cable in the world. The SAS, at 2,047 feet, is the world’s longest SAS and the signature element of the new East Span.
The bridge’s single 525-foot-tall tower echoes the height of the West Span’s towers. The tower’s placement closer to the west end of the SAS creates a distinctive asymmetrical design; the single mile-long main cable will present a sharper angle on the west side but a more sloping appearance on the east.