I-68 (National Freeway) is a relatively newer interstate, only having been added to the Interstate Highway System in 1991.

I-68/US 40 East reassurance marker at Sideling Hill

Click on the links below to navigate:

I-68 Westbound (from Hancock, MD to Morgantown, WV)
I-68 Eastbound (from Morgantown, WV to Hancock, MD)