A presentation deck from the Leaside/ Laird CLC meeting in January 2019

1. CROSSTOWN LRT
Construction Liaison
Committee January 2019

2. 2
Leaside Station Update

3. 3
Stage 4B – January 8 to mid-late March
Parking Lot

4. 4
Construction 2019/2020: What to Expect
• In early 2019, work will shift from piling, decking and shallow excavation to deep
excavation under the completed decking at the intersection.
• Support works, excavation, earth hauling and concrete and material deliveries will
continue on the surface.
• Wet Utility work is required east of Bayview, in front of Sunnybrook Plaza
• Main and Secondary Entrance sites will be the main access points for the excavation
underneath Eglinton Avenue.
• Large tower cranes will be installed in both entrances to facilitated deep excavation
works.
• There are two intersection construction stages planned to facilitated deep excavation:
Stage Approx.
duration
Traffic Pedestrians TTC
Stops
1 4-5
months
- No turn restrictions at intersection
- Dedicated left turn lanes in all directions
- Two through lanes each for WB & SB
- One through lane each for EB & NB
- N/S crossing on west side of
Bayview closed
- Pedestrian routes closed on
northwest corner
TBD
2 > 1 year - No turn restrictions at intersection
- Dedicated left turn lanes in all directions
- Dedicated right turn lane for WB traffic
- Two through lanes each for WB, EB & SB
- One through lane each for NB
- All pedestrian crossings
- Pedestrian routes closed on
northwest corner
TBD

5. 5
Laird Station Update

6. 6
Laird Station: What to Expect
24 Hour Mining
Long Term Construction
Activity
Area Duration
24 hour mining work Main & Secondary Entrances Summer 2017 – to
late 2019
Mining excavation • Advancing west from Main entrance and east
from secondary entrance under Eglinton Ave.
Underway
Permanent works • Cavern between main and secondary entrance
• Location of permanent works will change as
mining excavation is completed in various
sections of the cavern
• Includes waterproofing and concrete works
Underway

7. 7
Laird Station Underground Works
Cross Cut
Access Adit
Main Entrance
Cavern
• The mining process includes three principal underground activities that occur in a continuous sequence.
This creates the large underground cavern that will house the station platform and concourse.
• Horizontal ‘pipe roof’ supports the ground above
• Excavation of the materials below the ‘roof’
• Support of underground surfaces by spraying the walls and ceiling with concrete
• Final lining works will begin on sections of the caverns where mining excavation is complete
• Waterproofing and final lining will occur inside of the complete caverns
• During the concrete works, there will be continuous delivery of concrete to the surface sites
Secondary
Entrance
500m to be mined underneath Eglinton Ave – from west of Laird Drive to Brentcliffe Road

8. 8
Laird Station – Progress