Clark Street Bridge

Photos 

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Overview Photo taken by James McCray in August 2007 View high-res version

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Oblique View Photo taken by James McCray in August 2007 View high-res version

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Deck View Photo taken by James McCray in August 2007 View high-res version

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Closeup of Drawbridge Center Span Photo taken by James McCray in August 2007 View high-res version

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South West End of Bridge Photo taken by James McCray in August 2007 View high-res version

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South West Drawbridge Gear Tower Photo taken by James McCray in August 2007 View high-res version

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Bridge Plaques Photo taken by James McCray in August 2007 View high-res version

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Distant View Of Bridge Looking Northeast Photo taken by Historic American Engineering Record View photos at Library of Congress

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General View Looking Northeast Photo taken by Historic American Engineering Record View photos at Library of Congress

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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 View photos at Library of Congress

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South End Of Bridge With Bridge Tower And Pedestrian Path, Looking North Photo taken by Historic American Engineering Record View photos at Library of Congress

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Detail Of Bridge Tower Seen Through Truss Photo taken by Historic American Engineering Record View photos at Library of Congress

Map 

Vicinity map Map links: Google Maps Yahoo! Maps TopoZone Terraserver USA

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 

Update Log 

• February 4, 2008: New photos from James McCray

Sources 

• James McCray - jamesinslocomb [at] yahoo [dot] com
• HAER IL-64 - Chicago River Bascule Bridge, Clarke Street, Spanning Chicago River at Clarke Street, Chicago, Cook County, IL
• James Baughn - webmaster [at] bridgehunter [dot] com

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