Of the 612,677 bridges in the U.S., 54,259 of them (or 8.8 percent) are considered “structurally deficient,” meaning these bridges may not be unsafe at the moment but are in need of attention and repair, ARTBA says.
Of the 612,677 bridges in the U.S., 54,259 of them (or 8.8 percent) are considered “structurally deficient,” meaning these bridges may not be unsafe at the moment but are in need of attention and repair, ARTBA says.