List of bannered U.S. Highways

A bannered highway is an auxiliary route (alternate route, loop, or spur) designated with a banner plate above (or occasionally below) the route shield, or a suffix after the number in the shield of U.S. Highways and state highwaysThe following bannered highways have existed:Defunct routes are listed in italics.Routes are sorted by position along the main route, from south to north and west to east.Common banners are ALT (Alternate), BUS (Business), and BYP (Bypass).
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