First tunnel boring machine sets off for Toronto subway line
August 8, 2011
By
Canadian Consulting Engineer
Hatch Mott MacDonald announced that the first of four tunnel boring machines has been launched for the $2.6 billion Toronto-York Spadina Subway Extension. The Lovat machine will drive west from Downsview Park, which is the current northern...
Hatch Mott MacDonald announced that the first of four tunnel boring machines has been launched for the $2.6 billion Toronto-York Spadina Subway Extension. The Lovat machine will drive west from Downsview Park, which is the current northern terminus of the north-south Spadina line.
The machine will then tunnel north underneath Keele Street to Finch Avenue. Its twin TBM will launch along the same route in two months.
The other two tunnel boring machines will travel south from York University to meet the tunnel at Finch.
Hatch Mott MacDonald completed the design for the four tunnels and emergency exits.
