During the 1950's, the Michigan State Highway Department was considering finding one of three routes to place I-75 on through Downriver.

What interests me is that one of those routes would've taken it through Electric Street-this alignment would've possibly destroyed many Wyandotte neighborhoods. This alignment was an interesting topic of debate:
http://www.downriverthings.com/old-quotes.html

I would like to know if maps exist of these original proposed alignments.