I think that only the Northeast has highways that could almost be classified as "pre war." Here in Westchester County, many of our highways are passenger cars only parkways, with old stone overpasses that do now allow commercial vehicles enough clearance to pass through. They aren't interstates by a long shot, but they are busy arteries. By my home we have the Taconic State parkway, the Saw Mill River Parkway, and the Bronx River parkway further down. They are actually rather green and woodsy, devoid of loud commercial trucks, and the overpasses like this on on 9A north (otherwise known as the Briarcliff-Peekskill expressway-but only on the maps) are charming.
9A does actually allow some trucks, and they label the clearance to avoid the odd shearing off the top of the cargo van. Always a fun thing when you are in a hurry. The road on the overpass is known as Pleasantville Road, aptly named because it connect Briarcliff to Pleasantville (where, funny enough, it becomes Bedford Road. Guess why!).