Pittsburgh has the highest percentage of structurally deficient bridges in the United States, according to a new report. Transportation for America found that 30.4 percent of the bridges in the city are deficient.
Structurally deficient bridges are substandard and may need more maintenance, need weight restrictions, or be closed if deterioration continues. PennDOT has emphasized bridge repairs recently, reducing the number of Pennsylvania bridges in need of repair from 6,000 to 5,300. Transportation officials warn that this trend may not continue due to insufficient funding.
The report said that almost 70,000 bridges in the country are considered structurally deficient. The Federal Highway Administration estimates it would cost $70.9 billion to fix the problem, while current spending is at approximately $5 billion a year.