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Twyn Rivers Drive Little Rouge River Bridge

Twyn Rivers Drive Little Rouge River Bridge

Primary Photographer(s): Nathan Holth and Rick McOmber

Bridge Documented: April 12, 2011

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Key Facts

Facility Carried / Feature Intersected
Twyn Rivers Drive Over Little Rouge River
Location
Toronto: Toronto City, Ontario: Canada
Structure Type
Concrete Rainbow Through Arch, Fixed
Construction Date and Builder / Engineer
By Builder/Contractor: Unknown

Technical Facts

Rehabilitation Date
Not Available or Not Applicable
Main Span Length
70 Feet (21.3 Meters)
Structure Length
95 Feet (29 Meters)
Roadway Width
Not Available
Spans
1 Main Span(s)
NBI Number
Not Applicable

Historic Significance Rating (HSR)
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Bridge Documentation

Twyn Rivers Drive is a very scenic road that winds through Glen Rouge Park in far eastern Toronto. When driving the road, the driver is instantly transported from a suburban environment into a natural setting that feels like it is miles away from Toronto. One of the most unique aspects of the drive is that it crosses two rivers, the Rouge River and Little Rouge River, and each crossing is a heritage bridge. Even more interesting, each bridge is a completely different structure type. The Rouge River crossing is a metal truss bridge, while the Little Rouge River crossing is a concrete bowstring through arch (rainbow arch) type bridge. This contrast of bridge types within a short distance from each other makes for a very unique setting.

This bridge is a small, but well-preserved example of a concrete bowstring through arch, sometimes called a rainbow arch type of bridge. Based on the railing design of the bridge as well as the lack of inset rectangular panels on the arch, this bridge appears to be an example of the earlier design of this bridge type that was built in Ontario. This structure type may have once been common, and although a number of examples survive scattered throughout the province, this structure type should be considered rare today. Surviving examples with good integrity, like this bridge, are significant as examples of this aesthetically pleasing and unusual bridge type.

The bridge contributes in a positive manner to the scenic Twyn Rivers Drive and surrounding park, and is part of a heritage bridge group with the nearby metal truss bridge. Given what appears to be a largely recreational role of Twyn Rivers Road, the narrow two lane bridge appears to be sufficient for the needs and use of the roadway. The bridge should be maintained and preserved in place for continued light vehicular use.

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Photo Galleries and Videos: Twyn Rivers Drive Little Rouge River Bridge

 
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Bridge Photo-Documentation
Original / Full Size Photos
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
View Photo Gallery
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
View Video
Eastbound Crossing
Full Motion Video
Streaming video of the bridge. Also includes a higher quality downloadable video for greater clarity or offline viewing.
View Video
Driving Westbound
Full Motion Video
View driving westbound on Twyn Rivers drive, crossing both the arch and the truss bridge. Streaming video of the bridge. Also includes a higher quality downloadable video for greater clarity or offline viewing.

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Maps and Links: Twyn Rivers Drive Little Rouge River Bridge

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