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Le pont de l’Aqueduc (Aqueduct Bridge)

Le pont de l’Aqueduc (Aqueduct Bridge)

Primary Photographer(s): Nathan Holth

Bridge Documented: July 8, 2019

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Key Facts

Facility Carried / Feature Intersected
Pedestrian Walkway Over Rivière Saint-Charles
Québec: Capitale-Nationale, Québec: United States
Structure Type
Metal Deck Girder, Fixed
Construction Date and Builder / Engineer
1885 By Builder/Contractor: Unknown

Technical Facts

Rehabilitation Date
Not Available or Not Applicable
Main Span Length
160 Feet (49 Meters)
Structure Length
160 Feet (49 Meters)
Roadway Width
Not Available
1 Main Span(s)
NBI Number
Not Applicable

Historic Significance Rating (HSR)

Bridge Documentation

This is one of the oldest known plate girder bridges in Canada. As originally designed, it was a tubular girder structure designed to carry water pipes in between the girders and underneath a cover plate that was riveted on top of the girders. The bridge was built starting in 1883 and opened in January 1885. It remained in use as originally designed until 1944 when a project to bury the pipes underground took place. In 1945, the pipes were removed from the bridge. This project was due both to a long-standing concern that the above-ground pipes which were important to the city water supply were at risk from attack especially during World War II. After the project to bury the pipes was completed, the bridge was retained and turned into a pedestrian bridge. Presumably at this time, new floorbeams were added on top of the cover plate to facilitate the new use of the bridge. Thus, the through girder pipeline bridge transformed into a deck girder pedestrian bridge. Today, this bridge remains historically significant as a very old plate girder bridge. Its original design as a tubular girder is similar to large tubular girder bridges that were built in Montreal (Old Victoria Bridge) and in the United Kingdom. It also is unique for its arched shape of the girders. The span length is also very long for a simple plate girder span. The girders retain good historic integrity. The original stone abutments however have been replaced with concrete.

Above: Historical photo of bridge.

Above: Historical photo of bridge.

Above: Historical photo of bridge.


Photo Galleries and Videos: Le pont de l’Aqueduc (Aqueduct Bridge)

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Maps and Links: Le pont de l’Aqueduc (Aqueduct Bridge)

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