b'PROJECT PROFILE PHOTOS COURTESY OF METROLINXDRILLING EQUIPMENT AND PILINGS AT THE SCARBOROUGH SUBWAY EXTENSION LAUNCH SITElaunch shaft at Sheppard/McCowan of equipment, and Metrolinx is awaitingfor the impressive machine. In the past, and exit via an extraction shaft at delivery of a machine that answers thefor instance, the TBMs used on the Midland/Eglinton. call. A TBM with a diameter of 11.87Crosstown route were named Dennis metres, capable of digging about 10for the Mount Dennis neighbourhood, Eliminating the deep dig at Lawrencemetres of tunnel daily, has been movingLea for Leaside, and Don and East/McCowan will save enough timethrough quality-control and testingHumber for Torontos two major rivers.to make up for the reduced tunnellingstages at the Herrenknecht facility in capacity, so the project schedule wasSchwanau, Germany. Once declaredThe new extension will bring 7.8 not held up by the modification. Also, thefit for duty, it will be dismantled andkilometres of subway service further into Midland/Eglinton exit shaft will be lessshipped by water to Canada. Its arrival isScarborough and provide one reliable, disruptive to the hospital than the largerexpected in early 2022, at which time itsmooth ride to and from downtown proposed entrance shaft would will be trucked to the worksite Toronto and within the citys growinghave been. and reassembled. east end, says Ciavarro. This project will deliver the reliable and modernThe requirement to perform the work ofMetrolinx will be continuing its traditionrapid transit the people oftwo diggers calls for an exceptional pieceof asking the public to choose a nameScarborough need.24Quarter 32021 BUILDERSDIGEST'