That's the Trump International Hotel & Tower straight ahead, just beyond the subject bridge. The white building to the right of it is the Wrigley Building. Behind the Turmp Tower is the building formerly known as the IBM Plaza and behind it are the two towers of Marina City.
Ever since the City of Chicago evicted a guy who was living under the bridge a few years ago, they have stepped up their efforts to keep people out of the mechanism. The guy had a regular apartment built under the bridge, including an extension cord that went to the bridge tender's house, providing power for a television and a microwave oven. The squatter reported that the first time the bridge went up he was rather nervous, but after several hundred openings, it was no big deal.
Length of largest span: 255.8 ft.
Total length: 398.8 ft.
Deck width: 64.0 ft.
Vertical clearance above deck: 13.5 ft.
Recognition
Posted to the National Register of Historic Places
Approximate latitude, longitude
+41.88861, -87.62417(decimal degrees) 41°53'19" N, 87°37'27" W (degrees°minutes'seconds")
Approximate UTM coordinates
16/448217/4637597 (zone/easting/northing)
USGS topographic map
Chicago Loop OE E
Inventory numbers
IL 016-6035 (Illinois bridge number)
BH 15152 (Bridgehunter.com ID)
Inspection (as of 10/2007)
Deck condition rating: Satisfactory(6 out of 9) Superstructure condition rating: Satisfactory(6 out of 9) Substructure condition rating: Satisfactory(6 out of 9) Appraisal: Functionally obsolete
Sufficiency rating: 71.9 (out of 100)
Average daily traffic (as of 2006)
33,300
Categories
Update Log
May 17, 2010: New photos from J.R. Manning
February 4, 2008: New photos from James McCray
Sources
James McCray - jamesinslocomb [at] yahoo [dot] com
HAER IL-37 - Chicago River Bascule Bridge, Michigan Avenue, Spanning Chicago River at North Michigan Avenue, Chicago, Cook County, IL
James Baughn - webmaster [at] bridgehunter [dot] com
J.R. Manning - thekitchenguy [at] sbcglobal [dot] net