The American Road and Transportation Builders Association (ARTBA) analysis of the 2013 National Bridge Inventory database recently released by the U.S. Department of Transportation (USDOT) shows cars, trucks and school buses cross the nation’s more than 63,000 structurally compromised bridges 250 million times every day.
The American Road and Transportation Builders Association (ARTBA) analysis of the 2013 National Bridge Inventory database recently released by the U.S. Department of Transportation (USDOT) shows cars, trucks and school buses cross the nation’s more than 63,000 structurally compromised bridges 250 million times every day. The most heavily traveled are on the Interstate system.
Data fromthe USDOT report show that if all the structurally deficient bridges in the United States were placed end-to-end, it would take 25 hours driving 60 miles per hour to cross them. That’s like driving the 1,500 miles between Boston and Miami.
The problem could get a lot worse, ARTBA's chief economist says, as states across the nation face a slowdown in reimbursements for already approved federal-aid highway projects in August. Without congressional action, Dr. Alison Premo Black says there will be no Highway Trust Fund support for any new road, bridge, or public transportation projects in any state during FY 2015, which begins October 1.
“Letting the Highway Trust Fund investment dry up would have a devastating impact on bridge repairs,” Black says, noting the trust fund has supported $89 billion in bridge construction work by the states over the past 10 years. “It would set back bridge improvements in every state for the next decade.”
“The bridge problem sits squarely on the backs of our elected officials,” Black says. “The state transportation departments can’t just wave a magic wand and make the problem go away. It takes committed investment by our legislators. Members of Congress need to come to grips with that. Some of our most heavily travelled bridges were built in the 1930s. Most are more than 40 years old.”
Bridge decks and support structures are regularly inspected by the state transportation departments for deterioration and are rated on a scale of zero to nine—nine being “excellent” condition. A bridge is classified as structurally deficient and in need of repair if its overall rating is four or below.
While these bridges may not be imminently unsafe, ARTBA suggests they be sign posted so the public knows they have structural deficiencies that need repair.
The ARTBA analysis of the bridge data supplied by the states to the USDOT found:
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