File:COUNTER WEIGHT TRUNION RACK AND PINION AND COUNTERWEIGHT. - Chicago Avenue Bridge, Spanning North Branch of Chicago River at West Chicago Avenue, Chicago, Cook County, IL HAER ILL, 16-CHIG, 117-1.tif

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COUNTER WEIGHT TRUNION RACK AND PINION AND COUNTERWEIGHT. - Chicago Avenue Bridge, Spanning North Branch of Chicago River at West Chicago Avenue, Chicago, Cook County, IL
Title
COUNTER WEIGHT TRUNION RACK AND PINION AND COUNTERWEIGHT. - Chicago Avenue Bridge, Spanning North Branch of Chicago River at West Chicago Avenue, Chicago, Cook County, IL
Description
Byrne Brothers Dredging and Engineering Company; Keller and Elliot Company; City of Chicago; Sneddon, Matthew T; Lowe, Jet; Daley, Richard M; Chicago Department of Transportation; Walker, Thomas R; Kaderbek, S L
Depicted place Illinois; Cook County; Chicago
Date Documentation compiled after 1968
Dimensions 4 x 5 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, 117-1
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 Chicago Avenue bascule belonged to a set of Chicago city bridges built between 1910 and 1915 that augured in this transition in design from an earlier strictly utilitarian approach to one influenced by aesthetic concerns. Its design also incorporated several innovations that became standard features of the next generation of the "Chicago type" bascule bridge.
  • Unprocessed Field note material exists for this structure: N665
  • Survey number: HAER IL-144
  • Building/structure dates: 1914 Initial Construction
Source https://www.loc.gov/pictures/item/il0823.photos.318218p
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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current14:37, 17 July 2014Thumbnail for version as of 14:37, 17 July 20145,000 × 3,678 (17.54 MB)Fæ (talk | contribs)GWToolset: Creating mediafile for Fæ. HABS 16 July 2014 (1201:1400)

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