Historic Bridges
of the United States

Clark Street Bridge

Cook County, Illinois

Overview
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Photos 

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Overview

Photo taken by James McCray in August 2007

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Oblique View

Photo taken by James McCray in August 2007

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Deck View

Photo taken by James McCray in August 2007

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Closeup of Drawbridge Center Span

Photo taken by James McCray in August 2007

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South West End of Bridge

Photo taken by James McCray in August 2007

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South West Drawbridge Gear Tower

Photo taken by James McCray in August 2007

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Bridge Plaques

Photo taken by James McCray in August 2007

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Distant View Of Bridge Looking Northeast

Photo taken by Historic American Engineering Record

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General View Looking Northeast

Photo taken by Historic American Engineering Record

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General View Looking Northwest; City Of Chicago Central Office Building (1913) To The Right

Photo taken by Historic American Engineering Record

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South End Of Bridge With Bridge Tower And Pedestrian Path, Looking North

Photo taken by Historic American Engineering Record

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Detail Of Bridge Tower Seen Through Truss

Photo taken by Historic American Engineering Record

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Map 

Vicinity Map

Vicinity map

Map links:

Facts 

Overview
Bascule bridge over Main Branch Chicago River on N. Clark Street in Chicago
Location
Chicago, Cook County, Illinois
Status
Open to traffic
History
Built 1929; rehabilitated 1985
Builders
- American Bridge Co. of New York
- Ketler & Elliot Co.
Design
Bascule Pratt pony truss
Dimensions
Length of largest span: 245.3 ft.
Total length: 346.0 ft.
Deck width: 38.0 ft.
Approximate latitude, longitude
+41.88778, -87.63083   (decimal degrees)
41°53'16" N, 87°37'51" W   (degrees°minutes'seconds")
Approximate UTM coordinates
16/447664/4637508 (zone/easting/northing)
USGS topographic map
Chicago Loop
Inventory numbers
IL 016-6010 (Illinois bridge number)
BH 15112 (Bridgehunter.com ID)
Inspection (as of 10/2006)
Deck condition rating: Fair (5 out of 9)
Superstructure condition rating: Fair (5 out of 9)
Substructure condition rating: Fair (5 out of 9)
Appraisal: Functionally obsolete
Sufficiency rating: 64.0 (out of 100)
Average daily traffic (as of 2006)
14,800

Categories 

American Bridge Co. (67)
Bascule (445)
Built 1929 (476)
Built during 1920s (4,733)
Chicago, Illinois (78)
Cook County, Illinois (82)
Functionally obsolete (5,746)
Illinois (937)
Ketler & Elliot Co. (7)
Movable (858)
Navigable waterway (1,260)
Open (21,983)
Owned by city (1,996)
Pony truss (9,507)
Pratt truss (1,597)
Span length 175-250 feet (1,031)
Total length 250-500 feet (2,171)
Truss (16,172)

Update Log 

Sources 

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Comments 

Clark Street 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, JFIF standard 1.01, 437623 bytes

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