As this page points out, the location shows NJ, but will also cover PA in the review. I've used this highway for travel trips to PA and back, the first being in 2009, 2012, 2017, 2021, 2022, and 2023. In recent times traveling, there has been some construction going on between exits 35 and 45 in PA (mile posted numbers) for the last two years traveled, and very little progress is being made. Thankfully, I never had to come to a full stop. It seems there widening the shoulder. Hopefully some year it will be fully completed. Haven't traveled the full length, but the western terminus is at I-81 in Bordnersville.
In NJ, the road looks in pretty good shape, despite some traffic due to accidents and even congestion at exits. I can't speak for everything since I've only traveled as far as I-287, but continuing east will end up in Newark, and ending in NYC.
The scenery is pretty decent for the most part on the whole length, except Allentown, Newark, and NYC have their scenery of the city and buildings. read more