File:PIN CONNECTION AT VERTICAL AND BOTTOM CHORD ON CAMELBACK THROUGH TRUSS. VERTICAL AND BOTTOM CHORD MADE OF HAND-FORGED EYE BARS - New River Bridge, Spanning New River at State HAER VA,36-PEMB.V,1-24.tif

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PIN CONNECTION AT VERTICAL AND BOTTOM CHORD ON CAMELBACK THROUGH TRUSS. VERTICAL AND BOTTOM CHORD MADE OF HAND-FORGED EYE BARS - New River Bridge, Spanning New River at State Route 623, Pembroke, Giles County, VA
Title
PIN CONNECTION AT VERTICAL AND BOTTOM CHORD ON CAMELBACK THROUGH TRUSS. VERTICAL AND BOTTOM CHORD MADE OF HAND-FORGED EYE BARS - New River Bridge, Spanning New River at State Route 623, Pembroke, Giles County, VA
Depicted place Virginia; Giles County; Pembroke
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 VA,36-PEMB.V,1-24
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.

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Notes
  • Significance: The New River Bridge at Pembroke is unusual in its combination of various truss types and engineering details, many of which are unique in the area and survive only rarely statewide. Built in 1915-1916 by the Virginia Bridge and Iron Company of Roanoke, Virginia, it combines seven spans, six of which are carried by metal trusses of four different varieties. The bridge demonstrates the persistence of at least three early technological solutions generally abandoned by the turn of the century: nonriveted field constructions, the use of all pin connections (on the three main spans), and the incorporation of hand-forged welds and wrought iron for various structural members. Within the state, it contains the greatest number and variety of truss types for a given automotive crossing. Additionally, Virginia's longest Pennsylvania Petit through truss is found here, being the last of three bridges of this type to survive. Two other rare statewide features are metal column piers and a Pratt deck truss, the last of two to survive. The New River Bridge is nestled against Castle Rock, one of the most scenic natural formations in the region. The juxtaposition of technological and natural landmarks makes for a unique site.
  • Survey number: HAER VA-68
Source https://www.loc.gov/pictures/item/va1676.photos.368396p
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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