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File:DETAIL OF BUILDER'S PLATE- 'SUPERSTRUCTURE BUILT BY STROBEL STEEL CONSTRUCTION CO., CHICAGO, ILL., 1913, SUBSTRUCTURE BUILT BY FITZSIMONS and CONNELL DandD CO., CHICAGO, ILL.' HAER ILL, 16-CHIG, 125-2.tif

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Title
DETAIL OF BUILDER'S PLATE- 'SUPERSTRUCTURE BUILT BY STROBEL STEEL CONSTRUCTION CO., CHICAGO, ILL., 1913, SUBSTRUCTURE BUILT BY FITZSIMONS and CONNELL DandD CO., CHICAGO, ILL.' - Chicago River Bascule Bridge, Grand Avenue, Spanning North Branch Chicago River at Grand Avenue, Chicago, Cook County, IL
Description
Strobel Steel Construction Company; Fitzsimons and Connell Dock and Dredge Company; Fitzsimons, Gray, transmitter; Fitzsimons, Gray, historian
Depicted place Illinois; Cook County; Chicago
Date Documentation compiled after 1968
Dimensions 5 x 7 in.
Current location
Library of Congress Prints and Photographs Division Washington, D.C. 20540 USA http://hdl.loc.gov/loc.pnp/pp.print
Accession number
HAER ILL, 16-CHIG, 125-2
Credit line
This file comes from the Historic American Buildings Survey (HABS), Historic American Engineering Record (HAER) or Historic American Landscapes Survey (HALS). These are programs of the National Park Service established for the purpose of documenting historic places. Records consist of measured drawings, archival photographs, and written reports.

This tag does not indicate the copyright status of the attached work. A normal copyright tag is still required. See Commons:Licensing.

Notes
  • Significance: The Grand Avenue Bridge represents the "second generation" of the Chicago bascule bridge with improvements executed in the design of the counterweights, a new rack-and-pinion assembly (namely, the use of an internal rack, instead of an external rack that extended along the truss superstructure's upper chords), and a steel pony truss superstructure.
  • Survey number: HAER IL-139
  • Building/structure dates: 1913 Initial Construction
Source https://www.loc.gov/pictures/item/il0761.photos.048668p
Permission
(Reusing this file)
Public domain This image or media file contains material based on a work of a National Park Service employee, created as part of that person's official duties. As a work of the U.S. federal government, such work is in the public domain in the United States. See the NPS website and NPS copyright policy for more information.
Object location41° 51′ 00″ N, 87° 39′ 00″ W Kartographer map based on OpenStreetMap.View this and other nearby images on: OpenStreetMapinfo

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current11:47, 17 July 2014Thumbnail for version as of 11:47, 17 July 20143,665 × 5,000 (17.48 MB)Fæ (talk | contribs)GWToolset: Creating mediafile for Fæ. HABS 16 July 2014 (1201:1400)

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