I've been watching the group for awhile now and figured I'd join after checking out those Pennsylvania Turnpike abandoned tunnel photos.
The I-81/84/380 interchange underwent a dramatic change between 1996 and 2000 from a standard "tri-level stack interchange" into a maze of ramps, collector/distributor roadways, and landscaping to go with the addition of the U.S. 6 freeway that was built to the northeast. I create a vidcap from some footage I shot back April of 1994 of it before I had any idea that they would redo it. Notice the pastural look to it...
I took this photo July 1, 2005 and it shows the approximately location of the original interchange