File:VIEW OF EAST ELEVATION OF SPAN 2, LOOKING WEST - Emlenton Bridge, Spanning Allegheny River, Travel Route 38 (Legislative Route 75), Emlenton, Venango County, PA HAER PA,61-EML,1-3.tif

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VIEW OF EAST ELEVATION OF SPAN 2, LOOKING WEST - Emlenton Bridge, Spanning Allegheny River, Travel Route 38 (Legislative Route 75), Emlenton, Venango County, PA
Title
VIEW OF EAST ELEVATION OF SPAN 2, LOOKING WEST - Emlenton Bridge, Spanning Allegheny River, Travel Route 38 (Legislative Route 75), Emlenton, Venango County, PA
Description
Wrought Iron Bridge Company; McCain, Daniel; Emlenton Bridge Company; Pennsylvania Department of Transportation; Yule, Jordan Associates; Yearby, Jean P, transmitter; Laird, J Ira, photographer; Corbe, Christine, historian
Depicted place Pennsylvania; Venango County; Emlenton
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 PA,61-EML,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 existing Emlenton Bridge is significant in the areas of engineering and transportation, specifically for its age, size, type of truss, length of truss for this age, and material. The bridge was built in 1883 and has survived with its original Whipple trusses. Also referred to as double-intersection Pratt trusses, these spans are particularly long for this period. The substantial spans and deep truss account for the double-intersection configuration, which is used for greater strength. The original wrought-iron construction is also significant. The Wrought Iron Bridge Company of Canton, Ohio, was a prolific bridge building company in the 1800s, building bridges not only in the United States, but also in Canada and Mexico. The Emlenton Bridge is pictured in the company's 1885 catalog. The bridge currently has good integrity, with its portal ornament, erector's and county plaques, data plates, and decorative end lacing still in place. Historically, the structure has provided a local crossing over the Allegheny River in the same location as an earlier covered bridge and ferry. It became the first free bridge crossing the river in Venango County.
  • Survey number: HAER PA-101
  • Building/structure dates: 1883 Initial Construction
  • Building/structure dates: 1913 Subsequent Work
  • Building/structure dates: 1952 Subsequent Work
  • Building/structure dates: 1965 Subsequent Work
  • Building/structure dates: 1941-1942 Subsequent Work
  • Building/structure dates: 1945 Subsequent Work
  • Building/structure dates: 1952 Subsequent Work
  • Building/structure dates: 1965 Subsequent Work
  • Building/structure dates: 1979 Subsequent Work
  • Building/structure dates: 1983
Source https://www.loc.gov/pictures/item/pa1741.photos.141721p
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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current22:40, 30 July 2014Thumbnail for version as of 22:40, 30 July 20145,000 × 4,013 (19.14 MB)Fæ (talk | contribs)GWToolset: Creating mediafile for Fæ. HABS 30 July 2014 (2901:3000)

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