File:DETAIL OF BRIDGE SUPPORT - Calumet-Sag Channel Bridges, Caulmet-Sag Channel, Blue Island, Cook County, IL HAER ILL, 16-BLIS. V, 1-7.tif

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DETAIL OF BRIDGE SUPPORT - Calumet-Sag Channel Bridges, Caulmet-Sag Channel, Blue Island, Cook County, IL
Title
DETAIL OF BRIDGE SUPPORT - Calumet-Sag Channel Bridges, Caulmet-Sag Channel, Blue Island, Cook County, IL
Depicted place Illinois; Cook County; Blue Island
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-BLIS. V, 1-7
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: All five bridges are identical to one another and employ double tracks, except for the center bridge, which has only a single track. The Indiana Harbor Belt Railroad and the Baltimore and Chicago Terminal Railroad rail bridges are adjacent to each other on the western side of the group, while the three bridges to the east are the property of the Grand Trunk Western Railroad. The bridges are steel, fixed span through bridges with Pratt trusses. Members are connected by riveted gusset plates with plates and angles forming I-beams. There are concrete piers and abutments. Each bridge has one main span about 200' long. Bridges have concrete retainer walls and fenders. There is a concrete culvert west of bridges on north bank.
  • Survey number: HAER IL-121
  • Building/structure dates: 1935 Initial Construction
  • Building/structure dates: 1964 Subsequent Work
Source https://www.loc.gov/pictures/item/il0731.photos.037312p
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° 39′ 25.99″ N, 87° 40′ 48″ W Kartographer map based on OpenStreetMap.View this and other nearby images on: OpenStreetMapinfo

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current09:41, 17 July 2014Thumbnail for version as of 09:41, 17 July 20145,000 × 3,990 (19.03 MB)Fæ (talk | contribs)GWToolset: Creating mediafile for Fæ. HABS 16 July 2014 (1201:1400)

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