1/9 is not bad from the GW down into Jersey City, the issue is that it is on the wrong side of Jersey City from Liberty Harbor, and the only practicable way to cut over to the east is via 139 towards the Holland Tunnel. There is construction everywhere from near the former Tonnelle Circle, where a new interchange is half done to serve a replacement drawbridge, 139 itself is under major reconstruction too. You have to go almost all the way to the Holland Tunnel Toll Plaza to make a tight right onto Marin Blvd., which I believe is the direct route to Liberty Harbor.
I live in Northern NJ, and was just in Jersey City Monday night for a meeting, know all the tricky ways, and if I was even in a car headed to Liberty Harbor I'd take the Turnpike Extension to Grand Street.
