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Elm Street Bridge

Elm Street Bridge

Primary Photographer(s): Nathan Holth

Bridge Documented: September 1, 2019

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Key Facts

Facility Carried / Feature Intersected
VT-12 (Elm Street) Over Ottauquechee River
Location
Woodstock: Windsor County, Vermont: United States
Construction Date and Builder / Engineer
1870 By Builder/Contractor: National Bridge and Iron Works of Boston, Massachusetts

Technical Facts

Rehabilitation Date
1980
Main Span Length
110 Feet (34 Meters)
Structure Length
112 Feet (34 Meters)
Roadway Width
25.3 Feet (7.71 Meters)
Spans
1 Main Span(s)
NBI Number
200241001514242

Historic Significance Rating (HSR)

Bridge Documentation

This is a large, impressive, and extremely rare Parker patent pony truss bridge. As originally designed, this bridge had two overhead portal braces. Those no longer remain on the bridge, effectively turning the bridge into a pony truss. In 1900, this bridge had a riveted deck truss added to help support loads. Perhaps at this time as well, the original railing was replaced with a new, ornamental railing. In 1980, the deck truss was removed, and load-bearing steel stringers were installed, rendering the bowstring trusses non-structural and decorative only. Despite alteration, this bridge remains highly significiant as an example of the original patented design of Parker truss that inspired decades of Parker truss construction into the 20th century. 

View Archived National Bridge Inventory Report - Has Additional Details and Evaluation

View Historic American Engineering Record (HAER) Documentation For This Bridge

HAER Data Pages, PDF

View Article About Parker Patent Truss Bridges

Above: Historical photo showing bridge as originally designed with overhead portal bracing.

Above: Historical photo showing bridge as originally designed with overhead portal bracing.

Above: Historical photo showing bridge as originally designed with overhead portal bracing.

Above: Historical photo showing bridge as originally designed with overhead portal bracing.

Above: Photo showing the 1900 deck truss prior to removal. Photo Credit: Historic American Engineering Record.

Above: Historical advertisement for Parker patent truss bridge.

Above: Historical advertisement for Parker patent truss bridge.

Above: Historical advertisement for Parker patent truss bridge.

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Photo Galleries and Videos: Elm Street Bridge

 
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Bridge Photo-Documentation
Mobile Optimized Photos
A collection of overview and detail photos. This gallery features data-friendly, fast-loading photos in a touch-friendly popup viewer. Alternatively, Browse Without Using Viewer

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Maps and Links: Elm Street Bridge

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