Ohio
Pennsylvania
New Jersey (PART 1/PART 2)
Originally, this road was called I-80S. It was renamed I-76 to commemorate the year 1776, when the Declaration of Independence was signed in Philadelphia.
In Philly, I-76 ran on the Vine Street Expressway, while its loop route, I-676, ran on the Schuylkill Expressway. The two freeways traded numbers, so the reverse is true.
It would be nice if they extended the I-76 designation to Atlantic City, since I-76 is reachable from the Atlantic City Expressway via NJ 42 (the North-South Freeway).
Interstate 476 is the nation's longest 3di, linking Scranton/Wilkes-Barre to the Philadelphia suburbs.