Route History for US 40

The history of US 40 is presented for each state along the route.

Choose a State:

Links to external websites with information about US 40:

Pictures and descriptions of many old alignments of US 40 and the National Road in Maryland, Pennsylvania, West Virginia, and Ohio can be found on the SWPA Roads Project website.
Pictures and locations of old National Road milestones, many of which are on current or former US 40 alignments, can be found on the American Road magazine National Road / US 40 forum.
Pictures of old alignments of US 40 in Indiana and Illinois can be found in Mobilene's pictures on flickr.
An historical overview of US 40 can be found on the U.S. Highways: From US 1 to (US830) website.
The Wikipedia U.S. Route 40 page contains current and historical information about US 40.
Information about previous alignments and old photos of US 40 can be found on the Route 40 - America's Golden Highway website.

If you have any questions / comments / corrections for this website or find a broken link, please e-mail me.