“Under Chicago”, on Chicago Tonight
Maybe you have already seen these, but if not they’re worth a look: two bits of video from WTTW’s Chicago Tonight that deal with parts of the city’s underground infrastructure like the old freight tunnels and the Metropolitan Water Reclaimation District’s “Deep Tunnel” project. The segments, hosted by Geoffrey Baer, are short (about 8 minutes each) and don’t go into a lot of detail, but still…
part 1, from 8/12/09: http://video.wttw.com/video/1213974541
part 2, from 8/19/09: http://video.wttw.com/video/1220626736