States continue to chip away at the mammoth backlog of structurally deficient bridges, reducing the total of such spans by 4% last year, but the rebuilding job remains daunting, with 58,495 bridges still on the list, according to a new American Road & Transportation Builders Association report.
The ARTBA study, released on Feb. 18, draws on the Federal Highway Administration’s January update of its National Bridge Inventory data. It said about 9.5% of the nearly 610,000 U.S. bridges are structurally deficient.