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Walhachin Bridge

   


Walhachin Bridge

Primary Photographer(s): C. Hanchey

Bridge Documented: August 20, 2010
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Key Facts

Facility Carried / Feature Intersected
Riverview Drive Over Thompson River
Location
Rural: Thompson-Nicola District, British Columbia
Structure Type
Metal 9 Panel Rivet-Connected Pratt Through Truss, Fixed and Approach Spans: Wood Stringer (Multi-Beam), Fixed
Construction Date and Builder / Engineer
1911 By Builder/Contractor: Algoma Steel Bridge Company of Winnipeg, Manitoba and Engineer/Design: Waddell and Harrington

Technical Facts

Rehabilitation Date
Not Available or Not Applicable
Main Span Length
Not Available
Structure Length
Not Available
Roadway Width
Not Available
Spans
2 Main Span(s) and 3 Approach Span(s)
NBI Number
Not Applicable

Historic Significance Rating (HSR)

Bridge Documentation

This bridge is noteworthy as an early documented example of design work by legendary engineering firm Waddell and Harrington. Waddell is a name well known to bridge historians for many things, foremost his publications on bridge engineering of the period in his books entitled De Pontibus and Bridge Engineering. At the time this bridge was built, Waddell had not yet published the 1916 Bridge Engineering. Waddell and Harrington is also one of the earliest of a series of related engineering firms and names, which have changed and morphed to become what is today the HNTB Corporation.

Waddell and Harrington was noted for its work with movable bridges, but this bridge represents their work with fixed bridges. The bridge consists of two nine panel Pratt through truss spans. The trusses appear to retain good historic integrity including original plaques on the bridge. The bridge was constructed by Algoma Steel Bridge Company, a company associated with Algoma Steel, a major fabricator in Canada.

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