Jersey Barriers
Frequent dangerous accidents on Jugtown Mountain led to the first installation here of the concrete road dividers, which later became famous and are now also in use to defend against terrorists.
NJ Route 173 (Used to be US Route 22) was the main highway for travel between New York City and Allentown, PA until I-78 was opened in 1958. Jugtown mountain was the most treacherous mountain pass on that route.