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The cutterhead for Ohio’s largest tunnel boring machine, named “Mackenzie,” will begin its descent into Shaft 1 of the Northeast Ohio Regional Sewer District’s Euclid Creek Tunnel on Friday, June 1. That morning, public officials and local media professionals will visit the Sewer District’s construction site in Bratenahl for...

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Piece by piece, the gigantic tunnel digger that will burrow the underground route for the Sewer District‘s Euclid Creek Tunnel is arriving on site in Cleveland. The behemoth is known as a tunnel boring machine, or TBM, and it will take several truckloads and a few more weeks to...

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