Now that I'm living in Milwaukee I've had the chance to get some pictures, although this only represents a small fraction of the crossings there are in the area.
CP, UP, WSOR and CN all operate tracks through the city and its suburbs. Surprisingly, a lot of older signals still stand, including numerous EM gate signals on the UP lines. Another thing about the city is that for some reason, out-of-service tracks and crossings tend to be left in place longer (such as three of the crossings existing on the site, and three pictured below).


















