November 17, 1913 The Eighth Street Bridge in Allentown, Pennsylvania, was formally opened to traffic. At the time of its debut, this 17-arch structure — measuring 2,650 feet (810 meters) in length and 138 feet (42 meters) in height — was the world’s longest and highest concrete bridge. This bridge came into existence because the Lehigh […]1913: The Inauguration of a Record-Breaking Bridge in Pennsylvania’s Lehigh Valley Region — Transportation History
Chet went to Lehigh University, graduating in 1912. The bridge was probably under construction in part while he was there.