With more than 25,400 state-owned highway bridges greater than or equal to 8 feet in length, Pennsylvania has the third-largest number of bridges in the nation. The average age of bridges on the state system is over 50 years old.
PennDOT is committed to maintaining and improving bridges through bridge preservation activities, including painting, deck joint repair or replacement, rigid deck overlays, etc. In the long run, preservation saves money by extending bridge service life, thus deferring the need for major rehabilitation of bridges.
In addition to the state bridges, PennDOT is also responsible for the inspection of approximately 6,600 locally owned highway bridges greater than 20 feet in length. Our
interactive statewide map details the condition — good, fair, or poor — of each of these bridges.