Williamsport PA to Harrisburg PA

Thanks for the tips! I am also trying to avoid driving through the towns and it looks like 147 was helping with that. I may cut across 45 to get back to 15.

Agree with schlep1967, I take I-180 (147) to RT 45 at Lewisburg, 2 miles+/- to Rt-15. I avoid a lot of traffic the north end of Lewisburg.
Also, If you are looking for an overniter, we have stayed at the Walmart, north end of Lewisberg on Rt-15. Restaurants and Gas.

Should have no problems with height. The only tricky part is where 147 hits Rt 11. When making the right onto Rt 11 don't try to do it from the right turn lane. Take a little of the left turn lane as you approach the turn (it is a "T" intersection). 18 wheelers do it all the time. The ones that know how to do it don't run over the curb.

Personally I would take Rt 15 and deal with the little hill. All it takes is for one 18 wheeler to not make it through that tight Rt 147/Rt 11 intersection and traffic is backed up a mile in all directions.