Photos 

< Previous   (1 of 34)   Next >

Overview

The bridge acts as a memorial to Fort Dearborn.

Photo taken by James McCray in August 2007

View high-res version

< Previous   (2 of 34)   Next >

Drawbridge Gear Tower

The gear tower is a museum. The tower also is a memorial to Old Fort Dearborn, which was located at the south entrance to the bridge.

Photo taken by James McCray in February 2008

View high-res version

< Previous   (3 of 34)   Next >

General View Of Bridge From The Southeast Bank Of The Chicago River

Photo taken by Historic American Engineering Record

View photos at Library of Congress

< Previous   (4 of 34)   Next >

View Of Bridge From Southwest Bank Of The Chicago River Looking North; Equitable Building (Center) And Tribune Tower (Left)

Photo taken by Historic American Engineering Record

View photos at Library of Congress

< Previous   (5 of 34)   Next >

Detail Of Deck Truss, West Side

Photo taken by Historic American Engineering Record

View photos at Library of Congress

< Previous   (6 of 34)   Next >

General View Of Portals Looking North

Photo taken by Historic American Engineering Record

View photos at Library of Congress

< Previous   (7 of 34)   Next >

South Portal

Photo taken by Historic American Engineering Record

View photos at Library of Congress

< Previous   (8 of 34)   Next >

Interior Of Control Room

Photo taken by Historic American Engineering Record

View photos at Library of Congress

< Previous   (9 of 34)   Next >

Detail Of Interior Of Control Room

Photo taken by Historic American Engineering Record

View photos at Library of Congress

< Previous   (10 of 34)   Next >

Bas-Relief Decoration, 'The Discovers', Mural Commemorating Jolliet, Father Marquette, Lasalle And Tonty

Photo taken by Historic American Engineering Record

View photos at Library of Congress

< Previous   (11 of 34)   Next >

Bas-Relief Decoration, 'Defense', Mural Commemorating The Defense Of Fort Dearborn

Photo taken by Historic American Engineering Record

View photos at Library of Congress

< Previous   (12 of 34)   Next >

Bas-Relief Decoration, 'Pioneers'

Photo taken by Historic American Engineering Record

View photos at Library of Congress

< Previous   (13 of 34)   Next >

Bas-Relief Decoration, 'Regeneration,' Mural Commemorating The Rebuilding Of Chicago After The Great Fire

Photo taken by Historic American Engineering Record

View photos at Library of Congress

< Previous   (14 of 34)   Next >

Detail Of Trunnion Girder (Left) And Counterweight (Right), North Span

Photo taken by Historic American Engineering Record

View photos at Library of Congress

< Previous   (15 of 34)   Next >

Detail Of Gears With Trunnion Gear In Background, North Span

Photo taken by Historic American Engineering Record

View photos at Library of Congress

< Previous   (16 of 34)   Next >

General View Of Electric Motors, North Span

Photo taken by Historic American Engineering Record

View photos at Library of Congress

< Previous   (17 of 34)   Next >

Detail Of Electric Motor And Gear Set, North Span

Photo taken by Historic American Engineering Record

View photos at Library of Congress

< Previous   (18 of 34)   Next >

Detail Of Trunnion Girder And Hinges

Photo taken by Historic American Engineering Record

View photos at Library of Congress

< Previous   (19 of 34)   Next >

Deck View Looking Northeast

Yes, the tour bus is exactly what you might think it is. No, I've not taken the tour. You're on your own.

Photo taken by J.R. Manning in May 2010

View high-res version

< Previous   (20 of 34)   Next >

West Pedestrian Walkway

This is the south portal to The Magnificent Mile, which explains the shopping bags.

Photo taken by J.R. Manning in May 2010

View high-res version

< Previous   (21 of 34)   Next >

Center Joint

Looking east, toward Lake Michigan.

Photo taken by J.R. Manning in May 2010

View high-res version

< Previous   (22 of 34)   Next >

East Elevation

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.

Photo taken by J.R. Manning in May 2010

View high-res version

< Previous   (23 of 34)   Next >

East Lower Deck Walkway and deck truss detail

Photo taken by J.R. Manning in May 2010

View high-res version

< Previous   (24 of 34)   Next >

Fenced-in Lifting Mechanism

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.

Photo taken by J.R. Manning in May 2010

View high-res version

< Previous   (25 of 34)   Next >

Lower Wacker Drive

Looking west.

Photo taken by J.R. Manning in May 2010

View high-res version

< Previous   (26 of 34)   Next >

Barrel Shot Looking North

Lower Michigan Avenue as seen from Lower Wacker Drive.

Photo taken by J.R. Manning in May 2010

View high-res version

< Previous   (27 of 34)   Next >

Trunion Detail

Photo taken by J.R. Manning in May 2010

View high-res version

< Previous   (28 of 34)   Next >

West Lower Pedestrian Walkway and Deck Truss Detail

Photo taken by J.R. Manning in May 2010

View high-res version

< Previous   (29 of 34)   Next >

Detail of Lower Center Mating Joint

Photo taken by J.R. Manning in May 2010

View high-res version

< Previous   (30 of 34)   Next >

North Abutment

Photo taken by J.R. Manning in May 2010

View high-res version

< Previous   (31 of 34)   Next >

West Facing

As seen from the river

Photo taken by J.R. Manning in May 2010

View high-res version

< Previous   (32 of 34)   Next >

South Leaf Truss Detail

Photo taken by J.R. Manning in May 2010

View high-res version

< Previous   (33 of 34)   Next >

Historical Marker

For the text of this plaque, see the photo below.

Photo taken by J.R. Manning in May 2010

View high-res version

< Previous   (34 of 34)   Next >

Photo taken by J.R. Manning in May 2010

View high-res version

Map 

Facts 

Overview
Bascule bridge over Main Branch Chicago River on Michigan Avenue in Chicago
Location
Chicago, Cook County, Illinois
Status
Open to traffic
History
Built 1920
Design
Bascule Pratt deck truss
Dimensions
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

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

Comments 

Michigan Avenue Bridge
Posted September 8, 2007, by Tom Staley (thomass [at] nc [dot] rr [dot] com)

Photo taken Sept. 7, 2007

Uploaded file: JPEG image data, EXIF standard 2.2, 2036302 bytes