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Ironworkers Memorial Bridge

Second Narrows Bridge

Ironworkers Memorial Bridge

Primary Photographer(s): C. Hanchey, CC BY-NC 2.0, flickr.com/photos/21953562@N07/

Bridge Documented: August 9, 2010

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Key Facts

Facility Carried / Feature Intersected
TC-1 (BC-1) Over Burrard Inlet
Location
North Vancouver and West Vancouver: Greater Vancouver District, British Columbia: Canada
Structure Type
Metal Cantilever 24 Panel Pratt Deck Truss, Fixed and Approach Spans: Metal 8 Panel Rivet-Connected Warren Deck Truss, Fixed
Construction Date and Builder / Engineer
1960 By Builder/Contractor: Dominion Bridge Company of Montréal, Québec and Engineer/Design: Swan, Wooster Engineering Company

Technical Facts

Rehabilitation Date
Not Available or Not Applicable
Main Span Length
1,099 Feet (335 Meters)
Structure Length
4,239 Feet (1,292 Meters)
Roadway Width
Not Available
Spans
3 Main Span(s)
NBI Number
Not Applicable

Historic Significance Rating (HSR)

Bridge Documentation

This bridge is an extremely long-span cantilever deck truss bridge, and one of the few surviving heritage bridges in this area. Construction took place from 1956 to 1960. During construction there was a tragic collapse on June 17, 1958. According to Wikipedia, "On June 17, 1958, as a crane stretched from the north side of the new bridge to join the two chords of the unfinished arch, several spans collapsed. Seventy-nine workers plunged 30 meters (98 ft) into the water. Eighteen were killed either instantly or shortly thereafter, possibly drowned by their heavy tool belts. A diver searching for bodies drowned later, bringing the total fatalities for the collapse to nineteen. In a subsequent Royal Commission inquiry, the bridge collapse was attributed to miscalculation by bridge engineers. A temporary arm, holding the fifth anchor span, was deemed too light to bear the weight." Contractors for the bridge were the Dominion Bridge Company of Montréal, Québec, Kiewit Raymond, and John Laing and Son.

Above: Historical photo showing bridge collapse during construction.

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Photo Galleries and Videos: Ironworkers Memorial Bridge

 
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Maps and Links: Ironworkers Memorial Bridge

Coordinates (Latitude, Longitude):
49.295859,-123.026308

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