The Scarborough Subway Extension is a 7.8 kilometre extension of TTC’s Line 2 Bloor-Danforth Subway, from the existing Kennedy Station northeast to McCowan Road/Sheppard Avenue. The line will include three new stations at Lawrence Avenue and McCowan Road, Scarborough Centre and a terminal station at McCowan Road and Sheppard Avenue. The project is being delivered in main packages of work: the Advance Tunnel project awarded in May 2021 to Strabag and the Stations, Rail and Systems (SRS) package. Construction for the Scarborough Subway Extension began in the fall of 2021at the corner of Sheppard Avenue and McCowan Road as crews excavated for the launch shaft where the tunnel boring machine will go into the ground to start digging. The shaft will be about 80 metres long, 30 metres wide, and 25 metres deep. For comparison, a standard Olympic-sized swimming pool is about 50 metres long, 25 metres wide, and 2 metres deep.