Skip to main content

San Francisco Bay Bridge east span opens

After years of delays and cost overruns, the newly built US$6.4 billion eastern span of the San Francisco-Oakland Bay Bridge opened with few problems other than the traffic snarls that were common around the toll plaza of the old span. The single pylon suspension span replaces a structure that was damaged during the 1989 Loma Prieta earthquake. It is designed to withstand the strongest earthquake estimated by seismologists to occur at the site over a 1,500-year period.
September 5, 2013 Read time: 1 min
After years of delays and cost overruns, the newly built US$6.4 billion eastern span of the San Francisco-Oakland Bay Bridge opened with few problems other than the traffic snarls that were common around the toll plaza of the old span.

The single pylon suspension span replaces a structure that was damaged during the 1989 Loma Prieta earthquake. It is designed to withstand the strongest earthquake estimated by seismologists to occur at the site over a 1,500-year period.

One of the busiest spans in the United States, the single-towered, 634 metre long self-anchored main span is more than twice the length of the previous record holders, Japan's Konohana Bridge and South Korea's Yeongjong Grand Bridge, according to the Structurae engineering database.

It has been completed six years behind schedule at five times over budget. It will be used by some 280,000 daily commuters.

Related Content

  • Nearly 59,000 US bridges still structurally deficient, new analysis finds
    February 19, 2016
    According to the US Department of Transportation's recently-released 2015 National Bridge Inventory database, there were 2,574 fewer structurally deficient bridges in 2015 compared to the number in 2014. However, there are still 58,500 on the structurally deficient list and at the current pace of bridge investment it would take at least 21 years before they were all replaced or upgraded. The American Road & Transportation Builders Association (ARTBA), which conducts an annual review of state bridge da
  • Smoothing the path to reducing traffic pollution
    October 22, 2014
    David Crawford reviews a new approach to traffic smoothing. A key objective for the Californian city of Bakersfield’s upgraded traffic operations centre (TOC), which opened in June 2014, is to help improve living conditions in a region with one of the worst air quality problems in the US. The TOC is speeding up the smoothing of traffic flows by delivering faster and better-informed traffic signal retiming and synchronisation.
  • US budget proposals seek recognise ITS benefits
    April 30, 2015
    President Obama’s latest budget brings some good news for the transportation and ITS sectors. President Obama’s proposed 2016 budget could see more progress on many of America’s ingrained transportation problems than has been achieved in some time and includes a six-year $478 billion surface transportation reauthorisation. That is, of course, provided it clears all of the administrative hurdles to become law.
  • Putting a stop to intersection indecision
    March 9, 2015
    David Crawford takes a look at innovations to reduce crashes at rural intersections. Intersection crashes continue to represent a worryingly large share of deaths and serious injuries across US highway networks. Statistics from the US Department of Transportation’s Federal Highway Administration show that an average of 21% of road traffic accident deaths occur at crossings. The National Highway Traffic Safety Administration (NHTSA) calculates that intersection crashes account for 48% of all injury-related i