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Pont Larocque (Larocque Bridge)

Pont Larocque (Larocque Bridge)

Primary Photographer(s): Nathan Holth and Susie Babcock

Bridge Documented: July 4, 2019

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Key Facts

Facility Carried / Feature Intersected
QC-132, QC-202 and Railroad (CSX) Over Canal de Beauharnois
Location
Salaberry-de-Valleyfield: Montérégie, Québec: Canada
Structure Type
Metal 8 Panel Rivet-Connected Parker Through Truss, Movable: Vertical Lift (Span Drive) and Approach Spans: Metal Deck Girder, Fixed
Construction Date and Builder / Engineer
1957 By Builder/Contractor: Dominion Bridge Company of Montréal, Québec

Technical Facts

Rehabilitation Date
Not Available or Not Applicable
Main Span Length
210 Feet (64 Meters)
Structure Length
3,159 Feet (962.9 Meters)
Roadway Width
Not Available
Spans
1 Main Span(s)
NBI Number
Not Applicable

Historic Significance Rating (HSR)
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Bridge Documentation

One of two vertical lift bridges built on this canal, this one is unique for its combined highway and railway deck. The main lift span was built in 1957 but reportedly at least some of the approach spans date to 1932, which perhaps refers to the riveted railroad girder spans. The highway deck is supported by modern steel girders on the approach. Wikipedia reports a span length of 274.4 feet however when measured in Google Maps (which has shown to be surprisingly accurate) the span length appears to be only 210 feet (or at least in the 200-220 foot range). Dominion Structural Steel was the contractor for the superstructure, and Canada Iron Foundries was the mechanical contractor.

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Photo Galleries and Videos: Pont Larocque (Larocque Bridge)

 
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A collection of overview and detail photos. This gallery offers photos in the highest available resolution and file size in a touch-friendly popup viewer. Alternatively, Browse Without Using Viewer
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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: Pont Larocque (Larocque Bridge)

Coordinates (Latitude, Longitude):

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