US highway endpoints, photos, maps, and historyMap of US highway 22 and family
US 22 is represented by the purple line from Cincinnati OH to Newark NJ.
US 122 [I] (historic) is the red line from Haverstraw NY to Wilmington DE.
US 122 [II] (historic) is the red line from Oxford to Northumberland PA (near Selinsgrove).
US 222 is the blue line from Conowingo MD to Dorneyville PA (outside Allentown). The red lines north and south from those points are the historic extents of US 222.
US 322 is the blue line from Cleveland OH to Atlantic City NJ. Originally it followed the red line to Water Street PA.
US 422 (eastern segment) is the blue line from King of Prussia (near Philadelphia) to Hershey PA (near Harrisburg).
US 422 (western segment) is the blue line from Cleveland to Revloc PA (near Ebensburg).
US 522 is the blue line from Selinsgrove PA to Powhatan VA.
