Historic Bridges of the U.S. | North Avenue Bridge

Overview

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Photos

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Overview

These photos were taken Summer 1999 by Jet Lowe for the Historic American Engineering Record

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Aerial view

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Portal

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Deck view

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Plaque

1907
Fred A. Busse - Mayor
John J. Hanberg.
Commissioner of Public Works.
John Ericson, City Engineer.
Thos. G. Pihlfeldt
City Bridge Engineer.
Alexander von Babo, Structural Designer.

Facts

Overview: Double-leaf bascule through truss bridge over North Branch Chicago River on North Avenue in Chicago
Location: Chicago, Cook County, Illinois
Status: Open to two-lane traffic
Future prospects: Scheduled for demolition and replacement in Fall 2006
History: Built 1907
Design: Bascule Pratt through truss
Dimensions: Length of largest span: 172.8 ft.
Total length: 272.9 ft.
Deck width: 36.0 ft.
Vertical clearance above deck: 11.5 ft.
Approximate latitude, longitude: +41.91056, -87.65667 (decimal degrees)
41°54'38" N, 87°39'24" W (degrees°minutes'seconds")
Inventory numbers: IL 016-6039 (Illinois bridge number)
BH 15154 (Bridgehunter.com ID)
Inspection (as of 11/2005): Deck condition rating: Serious (3 out of 9)
Superstructure condition rating: Serious (3 out of 9)
Substructure condition rating: Poor (4 out of 9)
Appraisal: Structurally deficient
Sufficiency rating: 8.7 (out of 100)
Average daily traffic (as of 2005): 30,000