Well, I found lots of pictures . . .
. . of the [link|http://www.nycroads.com/crossings/pulaski/|Pulaski Skyway] at a half dozen sites, so it's alive and reasonably refurbed. All shots show clear sky with no columns of smoke and underside shots show industrial areas or weed lots, so I guess the dump is long gone, as I suspected. It certainly was a wonder.
[link|http://www.aaxnet.com|AAx]