This is the second story of a three-part series on the state's bridges.
Twenty-three percent of Pennsylvania's bridges are structurally deficient, and many need to be replaced. But between permitting, design, and construction, building a new bridge takes years.
That's why the Pennsylvania Department of Transportation is trying to speed things up.
Traditionally, PennDOT hires companies to replace its bridges one or two at a time. Now, it's trying something different: hiring a team of private contractors to replace hundreds of state bridges really quickly. It's called the Rapid Bridge Replacement Project.