File:PERSPECTIVE FROM NW - Yale Bridge, State Route 503 Spanning Lewis River, Yale, Cowlitz County, WA HAER WA0438DLC-PP-1-3.tif

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PERSPECTIVE FROM NW - Yale Bridge, State Route 503 Spanning Lewis River, Yale, Cowlitz County, WA
Title
PERSPECTIVE FROM NW - Yale Bridge, State Route 503 Spanning Lewis River, Yale, Cowlitz County, WA
Description
Stumpf, Karl W, transmitter
Depicted place Washington; Cowlitz County; Yale
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 WA0438DLC-PP-1-3
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 Yale Bridge is the only steel short-span suspension bridge in the state, although there are many timber examples. It is rare in the sense that less expensive span types are usually chosen for short crossings but it was built economically, using cost-saving materials and construction techniques. / The Yale Bridge is the only short-span steel suspension structure in Washington. It is rare to find this type of bridge at any location because mathematical calculations in stress analysis made in the course of designing a suspension span were tedious and time consuming. Rarer still is the placing of a suspension bridge in a remote location on what was at the time of construction, in 1932, a county road. But the Yale Bridge was an experiment in designing for economy. Its advanced system of tower main cable connections made erecting the bridge relatively simple and permitted the use of smaller diameter cables.
  • Unprocessed Field note material exists for this structure: N143
  • Survey number: HAER WA-87
Source https://www.loc.gov/pictures/item/wa0439.photos.370406p
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.

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current21:12, 4 August 2014Thumbnail for version as of 21:12, 4 August 20145,000 × 3,993 (19.04 MB)Fæ (talk | contribs)GWToolset: Creating mediafile for Fæ. HABS 2014-08-04 (3601:3800) Penultimate Tranche!

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