Western Works Construction Liaison Committee Meeting - September 2017

CROSSTOWN LRTConstruction Liaison CommitteeWestern WorksSeptember 26, 2017

Agenda

• Eglinton Maintenance & Storage Facility

• Mount Dennis Station

• Railway Corridor

• West Portal & Elevated Guideway

• Keelesdale Station

• Caledonia Station

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Maintenance & Storage Facility : ongoing works

• Site services – dry/wet utilities (ongoing)

• Steel erection for Maintenance Building (ongoing)

• Concrete placing, formwork and rebar – maintenance building pours (ongoing)

• OCS Foundation Installation

Mount Dennis Station: ongoing works

• Foundations – Mount Dennis station box concrete structure & main entrance (ongoing)

• Driven Piles for Photography Drive Bridge Abutment – Week of Sept 25 7:00 AM to 11:00 PM

• Keelesdale Road and sidewalk north of Eglinton closed commencing October 2, 2017

• Building 9 foundations

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Railway Corridor: ongoing work

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Phase 2 – started April 2017

• CP Track diversion Track Grading & Track Construction – started September 5, 2017

Phase 3 – started May 2017

• Center Temporary Shoring Wall (excavation & tie-backs) – Fall 2017

• LRT and Pedestrian Tunnel construction (excavation) – Fall 2017

• Work within the rail corridor will occur during the hours of 7:00 AM to 11:00 PM

• Anticipated night work will occur over the span of 2 to 3 nights to complete borehole drilling. This work is expected to begin at the end of September 2017. A notice will be canvassed to the affected residents on Hollis Street within the next week

West Portal & Elevated Guideway

*90% rendering6

West Portal & Elevated Guideway

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West Portal & Elevated Guideway

*60% rendering

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West Portal: ongoing work

• Box tunnel construction tiebacks and struts de-stressed and removals. Backfill (ongoing)

• Utility relocation works for Elevated Guideway – Manhole 27 is completed• To follow: Retaining wall and backfilling for Eglinton Avenue West realignment –

shaft walls demolition started. Utilities relocation at south Eglinton Avenue West (No-Frills entrance) to start foundations of the Elevated Guideway by end of September 2017.

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West Portal: current traffic

LRT Tunnel Fit Out

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Tunnel Invert Pour: Key Milestones

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Concrete Invert Pour: Concrete Delivery

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• Mini concrete trucks delivering concrete into tunnel.

Concrete Invert Pour: Stage 1

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• Concrete trucks deliver loose concrete to the work area• Loose concrete mix is used to fill the bottom of the tunnel• Tunnel Fit Out Crew flatten and smooth it

Concrete Invert Pour: Stage 2

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• Workers install welded mesh which functions like rebar to help reinforce the next layer of concrete

• Higher strength concrete is poured to provide the flat track slab for the rail tracks• Workers spread the concrete, and a truss screed machine vibrates it into a perfectly level

surface

Keelesdale Station: ongoing works

Ongoing

• Excavation under the deck, Main Entrance, 2nd Entrance, 3rd Entrance and TPSS • Tieback installation level B complete. Level C starts Sepbember 25th• Utility support 95% complete• Second shift is working from 5:00 p.m. to 2:00 a.m. daily.

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Caledonia Station Update

Fall 2017

• Dewatering (ongoing through construction period)

• Continue deep excavation and hauling (starting at 6:00 a.m.)

• Continue installation of tie-backs

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Long-term Construction Staging

Late June 2017 until 2021