The freeway is 4 lanes in width, with a 55 mph speed limit. Original concrete exists still on most of the highway, but some resurfacing has taken place. Signage has been slowly replaced since around 1992. Here's a scene northbound on US 1. Looking southbound at US 1.
Original concrete is still present here.
The eastern 2 miles of the US 1 expressway was under construction. The eastern ending at old U.S. 1. Text only sign on the PA 10 overpass. PA 10 shields at the end of the offramp from southbound US 1. Eastern view showing northbound U.S. 1 heading towards Philadelphia.