GREGG TOWNSHIP — Union County and PennDOT are expected to move forward with an estimated $2.2 million project to either replace or repair a historically significant metal truss bridge in Gregg ...

According to the nomination, the bridge exemplifies the Pratt Truss design, patented in 1844 by Caleb and Thomas Pratt, which became the most famous bridge type in America by the late 19th century.