Canada's construction news
YORK REGION - Shown is the installation of concrete girders for the new 45 metre span bridge at Purpleville Creek in the City of Vaughan. Two large cranes were required to place the girders. Retaining walls were used to raise the road profile approximately five metres.is experiencing tremendous pressure on its road network and that has been the catalyst for a number of expansions or proposed ones.
When complete, the bridge will carry two lanes of traffic in each direction and there will also be 3.6-metre-wide sidewalks on each side. Separating the sidewalks from the traffic lanes will be parapet walls which are now under construction. Other parts of the project included realigning the creek channel, eliminating the jogged Teston Road/Pine Valley Drive intersection and a gradual rising of the road to five metres at the approaches to the bridge.
A first layer of wall panels was installed, anchored and backfilled. In a repeat sequence, subsequent layers were installed until the desired roadway elevation was reached, he says. The alignment sequence included installing the erosion and sediment control features, closing the road to traffic, then removing the road base to expose the existing culvert, and building a temporary channel east of the existing creek. With the channel in place, the old culvert was removed and a new permanent channel constructed “in the dry.” The final step was diverting the river flow back into the permanent channel.
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