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TC-1 Southbound Cowichan River Bridge

TC-1 Southbound Cowichan River Bridge

Primary Photographer(s): Nathan Holth

Bridge Documented: August 25, 2014

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Key Facts

Facility Carried / Feature Intersected
TC-1 (Island Highway) Southbound Over Cowichan River
Duncan and North Cowichan: Cowichan Valley District, British Columbia: Canada
Construction Date and Builder / Engineer
1949 By Builder/Contractor: Western Bridge and Steel Fabricators Limited of Vancouver, British Columbia and Engineer/Design: British Columbia Department of Public Works

Technical Facts

Rehabilitation Date
Not Available or Not Applicable
Main Span Length
Not Available
Structure Length
252 Feet (77 Meters)
Roadway Width
Not Available
1 Main Span(s)
NBI Number
Not Applicable

Historic Significance Rating (HSR)
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Bridge Documentation

2018 Update: Harry Wilke contacted HistoricBridges.org and indicated they are currently performing a seismic upgrade to this bridge including replacement of bearings and repair of corroded members and rivets followed by full removal of old lead based paint and recoat. This should be complete by December 2018. The painting Contractor is Jamac Coating Contractors.

This is one of a number of riveted bridges found along this major highway. This stretch of highway is today a divided highway and the bridges found on it tell the story of the highway. The story is that in the mid-20th Century when the riveted bridges were built, this was a two lane highway. Later, the highway was turned into a divided highway and companion bridges were built at the crossings to form one-way couplets. Here, the companion bridge is a welded and bolted through arch bridge.

This bridge is a through truss that follows a standard design used by the British Columbia Department of Public Works. The portal and sway bracing on this bridge has been altered to increase the clearance for trucks.

Lengths given for this bridge are estimates.


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