Corridor routes and areas with strict access control would qualify as "four-lane limited access highways" in this bill. That would include all Corridor routes and a few specific other highways - such as US 250 south of Wheeling, WV 2 south of Weirton, WV 43, WV 9, US 33 east of Elkins, US 340, etc. I think we've debated freeways versus expressways here before, but West Virginia believes that some of its expressways are freeways even though they have at-grade intersections.