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File:DETAIL OF COUNTERWEIGHT ATTACHED TO THE APPROACH SPAN, WHICH IS THE UNIQUE FEATURE OF PAGE BASCULE; LOOKING NORTH - Chicago and Alton Railroad Bridge, Spanning South Branch of HAER ILL, 16-CHIG, 114-2.tif

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DETAIL OF COUNTERWEIGHT ATTACHED TO THE APPROACH SPAN, WHICH IS THE UNIQUE FEATURE OF PAGE BASCULE; LOOKING NORTH - Chicago and Alton Railroad Bridge, Spanning South Branch of Chicago River, Chicago, Cook County, IL
Title
DETAIL OF COUNTERWEIGHT ATTACHED TO THE APPROACH SPAN, WHICH IS THE UNIQUE FEATURE OF PAGE BASCULE; LOOKING NORTH - Chicago and Alton Railroad Bridge, Spanning South Branch of Chicago River, Chicago, Cook County, IL
Description
Hughes, William M; Kelly and Atkinson Company; American Bridge Company; Page, John W
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, 114-2
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 Chicago and Alton Railroad bridge was the first Page bascule erected for railroad use. Patented by John W. Page, a Chicago engineer, the Page bascule was not as extensively built as other patented systems such as the Strauss-Trunion bascule. This Chicago and Alton bridge may be the only one of its kind in existence.
  • Survey number: HAER IL-104
  • Building/structure dates: 1906 Initial Construction
Source https://www.loc.gov/pictures/item/il0670.photos.037290p
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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current07:25, 17 July 2014Thumbnail for version as of 07:25, 17 July 20145,000 × 4,045 (19.29 MB)Fæ (talk | contribs)GWToolset: Creating mediafile for Fæ. HABS 16 July 2014 (1201:1400)

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