As part of investigative work for the GO Expansion project, crews will be drilling vertical boreholes to assess ground conditions within the Lakeshore East rail corridor, according to Metrolinx.
This work – which is scheduled to start on Monday April 15 and run for about two months – will support future track and infrastructure updates.
Drilling is expected to occur Monday–Sunday beginning April 15, 2024, said Metrolinx adding that work will move within the area highlighted on the map (on right) for approximately two months. Borehole drilling is sequenced and moves throughout the rail corridor as work progresses.
Daytime working hours are scheduled whenever possible; however, some activities are required to take place overnight when trains are not in service, said Metrolinx.
It said crews will use a drill rig to perform the investigation works. The drill is rotated and pushed into the ground by the drill head. Once the desired depth is reached, a soil sample is retrieved for analysis.
In advance of borehole drilling, crews are required to identify underground utilities and clear a path at ertain borehole locations to move a drill rig within the corridor. This may involve routine maintenance and removal of small shrubs and other low-lying vegetation. A vac-truck may be used at certain borehole locations to identify utilities in advance of drilling.
Metrolinx said residents may experience some noise and minor vibration from the drill and other construction vehicles or equipment.
However, there are no anticipated impact to traffic, pedestrians or to transit.