A beam or "girder" bridge is the simplest and most inexpensive kind of bridge. According to Craig Finley of Finley/McNary Engineering, "they're basically the vanillas of the bridge world." ...
Each beam is 130 feet long and weighs 124,000 pounds and there are a dozen of them. They started moving on Monday, and will continue to be moved up to Monday,February third.
On Tuesday night, crews from contractors Golden Triangle and JC Lee set in place beams for a new bridge that will carry Route 51 over the interstate in Rostraver. According to PennDOT, traffic ...