Highway map of the state of Pennsylvania with Interstates (Getty Images) by: James Wesser. Posted: Sep 21, 2022 / 10:57 AM EDT. Updated: Sep 21, 2022 / 08:12 PM EDT. SHARE.

1977 — State Department of Transportation estimates 51,000 vehicles travel Route 22 each day, making it the fourth heaviest traveled highway in Pennsylvania. Schuylkill Expressway in ...