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Tunnel Building News (tenders, building progress news, etc)'s Files
Amsterdam Noord-Zuidlijn Damrak boring 2011.jpg
photo by Mojito WIkimedia Commons
Vancouver New Westminster Aerial View
By Alan LimbachImage by: Mike from Vancouver, Canada [CC BY-SA 2.0 (https://creativecommons.org/licenses/by-sa/2.0)]
cover tunnel photo by: Matt Brown from London, England / CC BY
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