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North Williston Bridge, Spanning Winooski River at town line of Essex & Wi, Essex, Chittenden County, VT



B&W Photos


Data Pages


Photo Caption Pages


Item Title


Location
Spanning Winooski River at town line of Essex & Wi, Essex, VT

Find maps of Essex, VT


Created/Published
Documentation compiled after 1968.

Notes
Survey number HAER VT-22
Building/structure dates: 1925 initial construction
Significance: This bridge is notable as one of the few Pennsylvania trusses in Vermont. The Pennsylvania truss is basically a Parker truss with subdivided panels, permitting additional floor beams between major verticals and thereby a cheaper floor and truss system. Accordingly, its use was generally limited to spans of more than 200' length. The extensive use of members built up by riveting plates, channels, angles and lacing bar is typical of the early 1920s. Later on, such members were more often simply rolled I-beams, a cheaper and faster alternative. This is the only known surviving bridge in Vermont fabricated by the Standard Engineering and Contracting Company. It is eligible for inclusion in the National Register of Historic Places.

Subjects
Transportation
Bridge Construction
Steel Truss Bridges


Related Names
Standard Engineering & Contracting Company
Sundaram, Sivanuja S., Historian


Collection
Historic American Engineering Record (Library of Congress)

Contents


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