Thanks to a heads-up from Skyscraper Page forum user BB 1871, who pointed out that McHugh Construction has planted the seedling for the first of two tower cranes to be used to build the new McDonald’s Corporation headquarters. The first crane is on the east side of the site; it will henceforth be known as East Crane. Over on the west side of the lot, crews were working on the foundation for West Crane. That’ll mean three tower cranes on two blocks, including the one in use at 171 North Aberdeen.
Caisson work is still ongoing at McDonald’s, but lots of other foundation work has been done as well. There’s a large hole in the ground toward the north end of the site, plus a couple of rebar mats that look like they’re just about ready for concrete pours. So yeah, lots of action going on here.