Charlotte, NC to Trenton, NJ
Russ.... Northbound on I-77 you'll have a pretty good climb starting about the NC/VA line. It climbs about 1500 ft in six miles to the summit at Fancy Gap. That's just under a 5% grade average, and in all aspects Interstate standards are maintained-- Lane width, curve radii, breakdown lanes, etc.
North of Fancy Gap the downgrade is respectable, though not quite as steep as the south side. But the grade mellows out fairly soon, and then it's a much milder grade for the remaining 20 miles or so down to I-81.
You shouldn't have any difficulty there. It's a real mountain grade, but it's good road, and standard mountain grade driving techniques will see you through just fine.
When you start north from the VA line on I-77 you'll be cutting right up the east side of the Blue Ridge. Mountains to your left, and the lower lands of the VA/NC Piedmont stretching off to your right. As you climb you get a more and more grand vista. I hope you'll have a nice visibility day when you travel.
John & Diane, fulltiming since '12 02 DS, FL, Cat330, '04 Element NHSO RVM103
John & Diane, Fulltimers. RVM103 NHSO
On the road since June '12 with Lincoln, the guard cat.
2002 Dutch Star 40, Freightliner, Cat 3126, 2004 Element