Photos
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General View Of Bridge, Looking North Photo taken by Historic American Engineering Record |
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Detail Of Builder's Plate 'Superstructure Built By Strobel Steel Construction Co., Chicago, Ill., 1913, Substructure Built By Fitzsimons & Connell D&D Co., Chicago, Ill.' Photo taken by Historic American Engineering Record |
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Detail Of Upper Chord And Riveted Gusset Plate Connection Photo taken by Historic American Engineering Record |
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Detail Of Counterweight Inside The Bridge Abutment Photo taken by Historic American Engineering Record |
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View Of Electric Motor That Powers Gears For Lifting The Bridge Photo taken by Historic American Engineering Record |
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Detail Of Rack And Pinion Gear Photo taken by Historic American Engineering Record |
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Interior View Of Bridgetender's House Photo taken by Historic American Engineering Record |
Facts
- Overview
- Bascule bridge over North Branch Chicago River on Grand Avenue in Chicago
- Location
- Chicago, Cook County, Illinois
- Status
- Open to traffic
- History
- Built 1913; rehabilitated 1974
- Design
- Bascule Pratt pony truss
- Dimensions
-
Length of largest span: 187.9 ft.
Total length: 269.9 ft.
Deck width: 36.0 ft.
- Approximate latitude, longitude
- +41.89167, -87.64056 (decimal degrees)
41°53'30" N, 87°38'26" W (degrees°minutes'seconds") - Approximate UTM coordinates
- 16/446860/4637946 (zone/easting/northing)
- USGS topographic map
- Chicago Loop
- Inventory numbers
- IL 016-6021 (Illinois bridge number)
BH 15126 (Bridgehunter.com ID) - Inspection (as of 11/2006)
- 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: 73.4 (out of 100) - Average daily traffic (as of 2006)
- 14,600
Sources
- HAER IL-139 - Chicago River Bascule Bridge, Grand Avenue, Spanning North Branch Chicago River at Grand Avenue, Chicago, Cook County, IL
- James Baughn - webmaster [at] bridgehunter [dot] com