Photos 

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General View Of Bridge, Looking Northeast; The Bridge In The Distance Is The Outer Road Bridge

Photo taken by Historic American Engineering Record

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View Of Interior Of Bridgetender's House

Photo taken by Historic American Engineering Record

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View Of Electric Motor And Gears For Operating Lift Span

Photo taken by Historic American Engineering Record

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Detail Of Trunion And Counterweight

Photo taken by Historic American Engineering Record

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Detail Of Counterweight

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 Columbus Drive in Chicago
Location
Chicago, Cook County, Illinois
Status
Open to traffic
History
Built 1982
Design
Bascule
Dimensions
Length of largest span: 269.0 ft.
Total length: 389.0 ft.
Deck width: 89.8 ft.
Approximate latitude, longitude
+41.89000, -87.62028   (decimal degrees)
41°53'24" N, 87°37'13" W   (degrees°minutes'seconds")
Approximate UTM coordinates
16/448541/4637749 (zone/easting/northing)
USGS topographic map
Chicago Loop OE E
Inventory numbers
IL 016-6101 (Illinois bridge number)
BH 15114 (Bridgehunter.com ID)
Inspection (as of 11/2006)
Deck condition rating: Good (7 out of 9)
Superstructure condition rating: Good (7 out of 9)
Substructure condition rating: Good (7 out of 9)
Sufficiency rating: 95.0 (out of 100)
Average daily traffic (as of 2006)
23,700

Categories 

Bascule (445)
Beam (1,816)
Built 1982 (21)
Built during 1980s (214)
Chicago, Illinois (78)
Cook County, Illinois (82)
Illinois (937)
Navigable waterway (1,260)
Open (21,980)
Owned by city (1,996)
Span length 250-500 feet (591)
Steel stringer (457)
Total length 250-500 feet (2,169)

Sources 

Comments 

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