A 50-year-old bridge that collapsed in Pittsburgh had been rated as poor on a recent inspection report, but transportation officials and engineering experts cautioned that doesn’t necessarily signal imminent danger for the thousands of other U.S. bridges with the same designation.
A 50-year-old bridge that collapsed in Pittsburgh had been rated as poor on a recent inspection report, but transportation officials and engineering experts cautioned that doesn't necessarily signal imminent danger for the thousands of other U.S. bridges with the same designation.
A 50-year-old bridge that collapsed in Pittsburgh had been rated as poor on a recent inspection report, but transportation officials and engineering experts cautioned that doesn t necessarily signal imminent danger for the thousands of other U.S. bridges with the same designation.