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I had made an edit earlier saying US-3 used to leave the expressway at exit 36 in Massachusetts, and it was reverted as uncited. I'm not having any luck finding a decent source one way or another. I swear I had a road atlas from the 80s that was labeled as such, but it may have been misprinted. I don't remember the old highway signs, before the widening, either way.

The only hints I could find are USGS map from the mid-80s:

http://www.terraserver-usa.com/image.aspx?T=2&S=11&Z=19&X=746&Y=11839&W=3&qs=%7cconcord%7cnh%7c

This is a zoom-in of Main St, and the US-3 marker is visible right below the map change. Unfortunately, the US-3 marker is visible around exit 4 or so on the same map on the F.E. Everett. In addition, the highway down to Chelmsford is labeled F.E. Everett, and the Rourke Bridge is missing from Lowell (completed in the early 1980s) so I have no idea how reliable this is.

Another from 1988. The shield is near Rivier, but again, Burque has the shield as well, which is nonsensical:

http://www.terraserver-usa.com/image.aspx?T=2&S=13&Z=19&X=187&Y=2958&W=3&qs=%7cconcord%7cnh%7c

Can anybody say definitively either way?

CSZero 01:14, 30 December 2006 (UTC) reply

It isn;t definitive again, and I don't have any photographic evidence, but I am 99% certain there used to be a VERY old junction sign at the intersection of Hollis Street and Main Street that clearly indicated Main Street as "U.S. Route 3" (not "to US3" or anything, just a US3 shield). The vintage of the sign would have led me to believe that at one point in the city's past, mainline U.S. 3 used Main Street, and the only logical way that would have worked would have been to come up DW Highway. It may have always been on the Everett Turnpike since it was built, but at SOME point, I am fairly certain that DW Highway was once U.S. 3. -- Jayron 32 03:52, 30 December 2006 (UTC) reply

There's no doubt that, before the construction of the "Nashua Bypass", U.S. Route 3 left the "highway" at Exit 3 and continued up Main Street through downtown Nashua. So yes, in the distant past, Main Street in Nashua was signed as U.S. Route 3. But for the entire time I have lived in Nashua (since '78), U.S. Route 3 continued on up the "highway" (the Everett Turnpike) to Exit 7E. There, U.S. Route 3 leaves the highway, goes across Amherst Street (NH 101A) and on up the Henri Burque Highway to Concord Street where it continues on into Merrimack, becoming the D.W. Highway at the Merrimack Line.

Atlant 01:40, 31 December 2006 (UTC) reply

Daniel Webster Highway is basically the default name for U.S. Route 3 in New Hampshire. If it doesn't have a local name, such as "Main St.", it has the highway name. I've placed a list at the beginning of the article showing all the stretches of Route 3 in New Hampshire that have this name. Since the southernmost three sections have already been started, I've placed an "incomplete" tag at the bottom of the article and invite editors to write descriptions of the remaining sections. -- Ken Gallager 17:30, 20 February 2007 (UTC) reply