Former 4 lane roads downgraded to 2 and the unused twin road is abandoned

[cl94]

US 33 had a stretch less than a mile long, just southeast of Russels Point, OH, that looked like this about ten years ago. I'm not sure if it ever operated as four lanes, or if they just moved all traffic from the old way onto the new way, but the old way was left in place until about 2010.

That's a weird one and I've noticed it before. From what I can tell via Historic Aerials, the bridges were built at the same time.

That seems unlikely to me, because before they removed the old westbound way, its bridge was a few feet lower than the bridge that remains. (We're talking about bridges over a small waterway, right?)

I'm going by construction imagery. They appeared to be under construction at the same time.

[Lyon Wonder]

US 50 in IL between Lebanon and Carlyle has sections that were supposed to be part of a 4-lane expressway that was planned but never completed.  2 of the lanes were built, but the other 2 lanes were never completed.