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Gas Line Bridge

Consumers Gas Company Bridge

Gas Line Bridge

Primary Photographer(s): Nathan Holth

Bridge Documented: June 20, 2013

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Key Facts

Facility Carried / Feature Intersected
Gas Line Over Don River
Toronto: Toronto City, Ontario: Canada
Structure Type
Concrete Through Arch, Fixed
Construction Date and Builder / Engineer
1930 By Builder/Contractor: Unknown

Technical Facts

Rehabilitation Date
Not Available or Not Applicable
Main Span Length
133 Feet (40.5 Meters)
Structure Length
133 Feet (40.5 Meters)
Roadway Width
Not Available
1 Main Span(s)
NBI Number
Not Applicable

Historic Significance Rating (HSR)
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Bridge Documentation

This bridge is right next to the Eastern Avenue Bridge.

This bridge is a very unusual structure, that is only really a "bridge" in the common sense of the term because it crosses something, that being the Don River, and also because its load-bearing structure takes a form commonly used in bridge design, that of the concrete arch. The structure does not carry traffic of any kind, and actually is an enclosed building complete with windows, doors, and an air vent on the roof. Its purpose is to carry a gas pipeline over the river. Pipeline bridges are not as common as traffic bridges, but they are not uncommon either. There are different reasons why a pipeline might need its own bridge rather than being attached to a traffic bridge as is often the case. There may not be a bridge nearby, for example. In the case of this bridge, the reason for the separate structure was apparently because this gas pipe was so large it was considered too heavy for the highway bridge that stood here at the time it was built. This refers to the previous Eastern Avenue Bridge at the location, not the one standing next to it today. That assessment was perhaps wise, since the old Eastern Avenue Bridge collapsed a few years after this Gas Line Bridge was completed. What is most unusual about the Gas Pipe Bridge however is its structural design. Usually pipeline bridges simply carry the pipeline out in the open, not inside an elaborate building as is the case here. Moreover, the concrete through arch design is unusual. Most pipeline bridges are a truss, beam, girder, or suspension bridge structure.

This bridge was not the first Gas Line Bridge at this location. The original bridge that preceded this bridge was built sometime after 1900. It was constructed by Consumers Gas Company to carry coal gas, which the company supplied to the city from three different plans including one on Eastern Avenue near Booth Avenue. The first bridge structure was a rivet-connected double-intersection Warren through truss. Like the current bridge, this bridge also had a building structure that completely enclosed the pipeline. This bridge collapsed in 1929, which led to the construction of the current concrete bridge. Today, the bridge remains a functional structure since Enbridge uses the pipleline to carry natural gas.

Above: These photos show the collapse of the previous Gas Line Bridge.


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