b'PROJECT PROFILE EXCAVATION AT THE SCARBOROUGH SUBWAY EXTENSION LAUNCH SITEBORING BUTFAR FROM DULL!UPDATE ON THE SCARBOROUGH SUBWAY EXTENSION By Sarah B. HoodAS THE CITY DROWSES throughScarborough RT), it will ease pressure onMetrolinx and Infrastructure Ontario waves of pandemic-inducedboth the Yonge/Bloor subway lines andhave split up the project delivery inactivity, the Toronto cityscape is beingsurface roadways. into separate contracts, one for the transformed. New transit projects likeadvanced tunnel work and a second the Yonge North Subway Extension,The project will create three newfor stations, railway and systems. On Eglinton Crosstown and Ontario Linestations at Lawrence/McCowan Road,May 25, the contract to design, build are gradually evolving from dreams toScarborough Centre and Sheppard/ and finance the tunnel was awarded to reality. Over the next decade, TorontoStrabag. The approximately $757-million will have a different feel, as commuters,McCowan Road that connect with thecontract includes one launch shaft, one tourists, students and shoppersexisting Kennedy TTC station at theextraction shaft, five headwalls for future navigate our urban geography mucheastern end of the Bloor line. Eventually,stations and 14 headwalls for future more seamlessly. a Sheppard East Subway Extension emergency evacuation buildings, as well is expected to link to it. This willas supplying the tunnel boringA key component of this reconfiguredpotentially offer connections to themachine (TBM).network is the Scarborough SubwayStouffville GO train, two rapid transit Extension. This addition to the TTCslines (Eglinton Crosstown and Sheppard)A Request for Qualifications for the Line 2 subway service will formand three bus systems, accommodatingremaining work, which includes building part of a web of routes that createsan estimated 105,000 daily boardingsthe stations, fitting out the tunnel numerous ways to negotiate trips inand installing and commissioning the Scarborough, the city centre and pointsand eliminating 10,000 tonnes ofsystems to put the subway into service, beyond. A replacement for Line 3 (thegreenhouse-gas emissions. was released on September 17.22Quarter 32021 BUILDERSDIGEST'