"did the same thing" as in "Virginia twinning"? Or as in reconstructing the old lanes? The short answer to both is "yes".
Sorry if my question wasn't clear. Yes, I was referring to "Virginia Twinning". Again, my apologizes. The "same" thing is happening to US 220 between Greensboro and the future I-73 interchange in Summerfield, NC. They built a new parallel lane that will be southbound lanes, and modified the old road (future northbound lanes) by making some changes and then cover it with new asphalt. The reason I put "same" is because I am not sure if that is called "twinning" or just a rebuild. Some parts of US 220 is being torn down and rebuilt, however.
"Virginia Twinning" is just a term I came up with years ago to describe the conversion of a two-lane route to a four-lane route merely by building one new parallel carriageway and not making any changes, or only minimal ones, to the existing route.
Nice term. File with "Jersey wall".
In my conscious memory, I've seen more than one example of "Virginia twinning", as you call it, on Delaware roads...
- DE 896 from Porter Road to DE 71 at the north end of the Summit Bridge
- DE 896/DE 71 from the south end of the Summit Bridge to Boyds Corner Road (the Summit Bridge itself was already built as a 4-lane although a couple of times in its history it was reduced to one lane each way for redecking/maintenance)
- what is today DE 1 in several stretches between the south end of Dover AFB and DE 16, and again when the 1965-vintage Indian River Inlet bridge (not the current cable stayed version) received a parallel span, and again between South Bethany and the DE/MD line. (The stretch between DE 16 and U.S. 9/DE 404 was *probably* Virginia-twinned in the late '60s [except for the hamlet of Nassau and the Broadkill River drawbridge which were completely bypassed, and the Broadkill drawbridge removed], though I don't remember the construction.)
- U.S. 113 between just south of Milford and just north of Georgetown
(I cite these upgrades just as I think of them, not in any particular order)
Would the building of parallel spans of the Delaware Memorial Bridge and the two Chesapeake Bay crossings count as "Virginia twinnings", or don't bridges qualify (as in my DE 1 Indian River Inlet example)?
ixnay