Wikimedia Commons

File:PORTAL VIEW, LOOKING WEST. - St. Charles Air Line Bridge, Spanning South Branch of Chicago River, north of Sixteenth Street, Chicago, Cook County, IL HAER ILL, 16-CHIG, 154-7.tif

Original file ‎(3,599 × 5,000 pixels, file size: 17.16 MB, MIME type: image/tiff)

Captions

Captions

Add a one-line explanation of what this file represents

Summary edit

PORTAL VIEW, LOOKING WEST. - St. Charles Air Line Bridge, Spanning South Branch of Chicago River, north of Sixteenth Street, Chicago, Cook County, IL
Title
PORTAL VIEW, LOOKING WEST. - St. Charles Air Line Bridge, Spanning South Branch of Chicago River, north of Sixteenth Street, Chicago, Cook County, IL
Description
Strauss, Joseph Baerman; Strauss Bascule Bridge Company; American Bridge Company; Foundation Company; Ferro-Construction Company; E. J. Albrecht Company; Strobel Steel Construction Company; Chicago Department of Transportation, sponsor; DeLony, Eric N, project manager; Daley, Richard M, sponsor; Walker, Thomas R, sponsor; Kaderbek, S L, sponsor; Sears, Hannah, transmitter; Spivey, Justin M, historian; Lowe, Jet, photographer
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, 154-7
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: Like all Strauss heel-trunnion bascule bridges, the St. Charles Air Line Bridge rotates vertically, lifting to clear the river it spans. This particular bridge is unique, however, in that its design anticipated a one-time horizontal movement - to a new, straighter channel of the Chicago River. Its original 260'-0" leaf exceeded the previous world record by 30'-0", but was shortened by 40'-0" during the move. The bridge represents Strauss' first use of air-buffered pistons on the operating struts. It is also significant for the railroad it carries, an unusual "gentlemen's agreement" between four of Chicago's earliest railroads.
  • Unprocessed Field note material exists for this structure: N650
  • Unprocessed Field note material exists for this structure: N966
  • Survey number: HAER IL-157
  • Building/structure dates: 1917-1919 Initial Construction
  • Building/structure dates: 1930 Subsequent Work
Source https://www.loc.gov/pictures/item/il0837.photos.318405p
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.

File history

Click on a date/time to view the file as it appeared at that time.

Date/TimeThumbnailDimensionsUserComment
current15:23, 17 July 2014Thumbnail for version as of 15:23, 17 July 20143,599 × 5,000 (17.16 MB)Fæ (talk | contribs)GWToolset: Creating mediafile for Fæ. HABS 16 July 2014 (1201:1400)

You cannot overwrite this file.

Metadata

This file contains additional information such as Exif metadata which may have been added by the digital camera, scanner, or software program used to create or digitize it. If the file has been modified from its original state, some details such as the timestamp may not fully reflect those of the original file. The timestamp is only as accurate as the clock in the camera, and it may be completely wrong.

Retrieved from "https://commons.wikimedia.org/w/index.php?title=File:PORTAL_VIEW,_LOOKING_WEST._-_St._Charles_Air_Line_Bridge,_Spanning_South_Branch_of_Chicago_River,_north_of_Sixteenth_Street,_Chicago,_Cook_County,_IL_HAER_ILL,_16-CHIG,_154-7.tif&oldid=278397369"