Here's three cropped images (21 Feb, 22 May and 25 Jun) showing 777 N Van Buren as seen from the Milwaukee Harbor webcam operated by the University of Wisconsin Milwaukee, School of Freshwater Sciences
The tower crane operating from 4:50 this morning.
All images collected from UWM School of Freshwater Sciences, Milwaukee Harbor Webcam
http://uwm.edu/freshwater/harbor_webcam/