PennDOT has an aggressive bridge inspection program that regularly inspects all of Pennsylvania’s bridges at least once every two years. Structurally deficient bridges are inspected more frequently if their condition warrants. We do not hesitate to impose weight restrictions and close bridges if deterioration causes safety concerns.
At the peak, PennDOT had 6,034 SD bridges. To reach the national average of SD bridges, PennDOT needs to reduce the number of SD bridges to approximately 2,700 – this would equate to nearly 400 bridges each year for the next 21 years.