LAUNCH OF TUNNEL BORING MACHINE AT NORTH ENTRY SHAFT SITE - posted on October 05, 2020
The Tunnel Boring Machine which is used to dig the water supply tunnel, has been lowered into the north entry shaft site in the District of North Vancouver and has started its journey towards the south exit shaft site, located in Second Narrows Park in the City of Burnaby. The machine will be tunneling deep under the Burrard Inlet until mid-2021. On the left is an image of the Tunnel Boring Machine and a video is also available below.
The contractor has also made substantial advancement on the excavation of the exit shaft in Second Narrows Park, with this work being approximately two-thirds complete. Remaining excavation activities will be completed before the Tunnel Boring Machine reaches the exit shaft. Once this activity is complete, valve chamber construction and water main installation will begin in mid-2021 and last approximately two years.
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