David Talbot

A View from David Talbot

A Glaring Technology Gap

With Congress focused on bridge inspections, it might ask why the best inspection tools aren’t deployed.

  • September 7, 2007

At a hearing of the House Transportation and Infrastructure Committee earlier this week–a month after the I-35 Minneapolis bridge collapse killed 13 people–Calvin L. Scovel III, the Transportation Department’s inspector general, chided the Federal Highway Administration (FHA). Scovel said the FHA needed to prioritize bridge inspections in terms of failure risk and make sure its engineers are spending sufficient time inspecting the structures.

But how well equipped are those inspectors? For answers, Scovel might do well to read this blog, by MIT civil engineer Oral Buyukozturk. Buyukozturk points out that today, many inspectors carry out their duties by pinging bridges with a hammer, or just looking at them with the naked eye. Meanwhile, far better tests–like acoustic and radar tests that peer beneath a concrete surface for evidence of decay–are well advanced but little used. At this moment of crisis, Buyukozturk notes, “the high-tech, nondestructive tools presently available for infrastructure inspection have not been embraced by the construction industry for widespread and systematic use.” Given that more than 70,000 U.S. bridges are rated “structurally deficient,” this inspection-technology gap might be good fodder for future hearings.

Uh oh–you've read all five of your free articles for this month.

Insider Premium

$179.95/yr US PRICE

More from Intelligent Machines

Artificial intelligence and robots are transforming how we work and live.

Want more award-winning journalism? Subscribe to Insider Premium.

  • Insider Premium {! insider.prices.premium !}*

    {! insider.display.menuOptionsLabel !}

    Our award winning magazine, unlimited access to our story archive, special discounts to MIT Technology Review Events, and exclusive content.

    See details+

    What's Included

    Bimonthly home delivery and unlimited 24/7 access to MIT Technology Review’s website.

    The Download. Our daily newsletter of what's important in technology and innovation.

    Access to the Magazine archive. Over 24,000 articles going back to 1899 at your fingertips.

    Special Discounts to select partner offerings

    Discount to MIT Technology Review events

    Ad-free web experience

    First Look. Exclusive early access to stories.

    Insider Conversations. Join in and ask questions as our editors talk to innovators from around the world.

You've read of free articles this month.