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TR-12 Bridge Middle

TR-12 Bridge Middle

Primary Photographer(s): Nathan Holth and Rick McOmber

Bridge Documented: April 12, 2011

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Key Facts

Facility Carried / Feature Intersected
TR-12 Over Nith River
Location
Rural: Oxford County, Ontario: Canada
Construction Date and Builder / Engineer
1929 By Builder/Contractor: Reid-Riddell Engineering of Toronto, Ontario

Technical Facts

Rehabilitation Date
Not Available or Not Applicable
Main Span Length
Not Available
Structure Length
133 Feet (40 Meters)
Roadway Width
Not Available
Spans
1 Main Span(s)
NBI Number
Not Applicable

Historic Significance Rating (HSR)
View Information About HSR Ratings

Bridge Documentation

This bridge is significant as one of a group of three heritage bridges. One unique feature of this road is it has three truss bridges all within a relatively short distance, crossing the Nith River. There is the west, middle, and east bridges. Each bridge appears to date to the same period, and has similar construction details, yet each bridge has something different in its overall design caused by the varying conditions at each of the river crossings. This road offers a unique experience to observe how a bridge design would be adjusted for different site conditions.

This bridge is an eight panel Pratt through truss, making it a fairly long example of its type, yet the truss is not as deep (tall) as one would expect for a span of this length, which visually makes the bridge look even longer. It is an interesting comparison to the west bridge which is only seven panels yet has deeper trusses. Traditionally longer bridges have deeper trusses because a deeper truss is a stronger truss.

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Photo Galleries and Videos: TR-12 Bridge Middle

 
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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
Westbound Crossing
Full Motion Video
Streaming video of the bridge. Also includes a higher quality downloadable video for greater clarity or offline viewing.
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.

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Maps and Links: TR-12 Bridge Middle

Coordinates (Latitude, Longitude):

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