California bridge receiving constant attention

The MISTRAS Group is handling a US$3.4 million contract for continuous structural health monitoring on the San Francisco Oakland Bay Bridge. The client for this contract is the California Department of Transportation (CALTRANS) and MISTRAS will be responsible for installing and operating the package. The system is being installed on the bridge in response to a fatigue defect found on a structural steel beam in a regularly scheduled inspection during a holiday closure in 2009.
May 29, 2012 Read time: 2 mins
The 5774 MISTRAS Group is handling a US$3.4 million contract for continuous structural health monitoring on the San Francisco Oakland Bay Bridge. The client for this contract is the 2451 California Department of Transportation (CALTRANS) and MISTRAS will be responsible for installing and operating the package. The system is being installed on the bridge in response to a fatigue defect found on a structural steel beam in a regularly scheduled inspection during a holiday closure in 2009.

The bridge opened in 1936 and has one of the largest spans in the world, carrying some 250,000 vehicles/day at present. The MISTRAS system will remotely and continuously monitor 384 critical eye bars for the early detection of fatigue defects using its advanced real time software, listening to 640 strategically placed acoustic emission sensors mounted on the bridge's eye bars.

The package will automatically send a message alert to engineering personnel in the event of a flaw indication being detected, including its location. When delivered, this will possibly be the largest and most advanced automated structural health monitoring system in the world according to MISTRAS.
Road Structures

For more information on companies in this article

Related Content

  • Hyundai E&C is working on Turkey’s new third Bosporus Bridge
    July 10, 2013
    Hyundai Engineering & Construction (Hyundai E&C) is to head a consortium building the lateral towers, aprons and suspension cables for the new Bosporus crossing in Turkey. Hyundai E&C will work in a consortium with its partner SK Engineering & Construction on the US$697 million project to construct the 2.16km Third Bosporus Bridge. This suspension bridge will feature eight lanes for motor vehicle traffic as well as two rail lines. With a width of 59m it will be the widest bridge in the world that carries a
    Read More
  • ASECAP: maintenance mindshift turns spending into investment
    August 4, 2017
    With an estimated value of €8 trillion, the road infrastructure is probably the European Union’s largest single asset. It accounts for 83% of passenger journeys and more than 70% of freight movement. Despite this importance, global investment in roads - especially maintenance - has fallen, said Christophe Nicodeme, European Road Federation secretary general. There are grave consequences, noted Nicodeme in his opening keynote address to the recent Study and Information Days gathering, an annual event for mem
    Read More
  • Versilis and Haas to offer Safety Cloud alerts
    May 4, 2021
    Versilis safety gates are now integrated with Haas Alert’s Safety Cloud, a cellular-V2X (C-V2X) solution that sends real-time digital alerts to drivers approaching work zones.
    Read More
  • SSL hits back over criticism of its work on the Champlain Bridge
    December 11, 2017
    The contactor building the replacement Champlain Bridge in Canada has hit back over of allegations of poor workmanship in the US$3.3 billion project. The new 3.4km cable-stayed Champlain Bridge over the St Lawrence River will have six lanes vehicle lanes and a separate cycle and pedestrian lane. Design life is 125 years and is being constructed under a public-private partnership and operating contract of 30 years after completion of construction. Work includes construction of a smaller bridge for Île des
    Read More

Highlighted Content