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Leaside Open House

East Tunnel Construction

March 2014

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Eglinton Crosstown LRT

Project

$4.9 B (2010$), funded by the Province of Ontario

19 kilometres east-west LRT from Kennedy to Jane/Black Creek,

including 10 kilometres of tunnel

Connections to Yonge-University-Spadina Subway, Scarborough RT

and GO Stouffville

Up to 26 stations

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East Tunnel Construction Timeline

At future station locations underground structures (emergency exits,

cross passages) utility relocation and headwall installation is

expected to last approximately six to eight months on average

Emergency Exits at Donlea/Hanna and at Petman Avenue are

expected to take up to 24 months to construct

The deep excavation at Brentcliffe is expected to take up to 12

months to construct

Tunnelling activities to Yonge are expected to be completed by

summer 2016

Following the completion of tunnelling works, the site will be turned

over to the Metrolinx station contractor

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Tunnel Boring Machine

The construction of new tunnels under Eglinton Avenue is done by

tunnel boring machines (TBMs).

Each TBM moves forward by pushing off against concrete segments.

The operator advances the machine as soil is removed from the TBM

face through a conveyor system.

The launch pit remains active for removal of muck/spoils.

Expected to arrive on site mid-2014 and be constructed on site

alongside the completion of the launch shaft.

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Assembly of Tunnel Boring Machines

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East Tunnels Launch Shaft

To Brentcliffe To Leslie

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Launch Shaft

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Sequence of Tunnel Drive

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Tunnel Drive Works 2014

Headwalls are temporary support walls for future excavation of

the LRT stations.

Made of concrete and installed to the depth of the future track

level

Two methods of installation used: Secant Pile Walls, Jet Grout

Machinery including drill rigs, grout tanks, diggers and other

equipment

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Tunnel Drive Works 2014

Secant pile wall : formed by intersecting

concrete piles Jet grout wall : uses engineered

grout to form wall on site

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TBM Launch- Vicinity of Brentcliffe Road and

Eglinton

Launch Shaft: a deep excavation located just east of

Brentcliffe where two tunnel boring machines will be launched

toward Yonge

Utility relocation will occur before excavation begins

Concrete temporary support walls will form the foundation of

the shaft

Work will start on the north side of Eglinton Avenue. Traffic will

be shifted according to phases of the work.

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Utility Relocations Construction of the headwalls and shafts requires that some

utilities be moved safely out of the way

Depending on site conditions: gas, hydro, water mains, sewers,

lighting and telephone and cable lines may be relocated to allow

for construction

In the vicinity of the launch and extraction shafts Metrolinx is co-

ordinating with Bell, Enbridge, Toronto Water and Toronto Hydro,

Cogeco regarding required relocations

In most cases utility relocations will be undertaken by Metrolinx

contractor

Enbridge will coordinate works with Metrolinx

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Emergency Exit Buildings

Required where station

platforms are more than 762

metres apart

Required between the

following stations:

Mount Pleasant/ Bayview

Bayview/ Laird

Constructed by Tunnels

contractors

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Emergency Exit Buildings and Cross Passages

Hannah Road

Petman

Avenue

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Approach to Traffic Management

Maintain a minimum of one lane eastbound and westbound on

Eglinton in construction work zones

Buses and general traffic will share this lane

Additional lanes will be provided if space allows

Metrolinx will work with City of Toronto Transportation, local

elected officials and neighbours to monitor local traffic

Signal timing may be modified and turning restrictions may be

added or relaxed

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Traffic Lane Reductions

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Transit Services during Tunnel Construction

Both eastbound and westbound TTC stops in the affected area

may be shifted and relocated for the safety of transit riders

Watch for TTC posted signs indicating the adjusted stop

locations

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Pedestrians

In the construction zone for temporary sidewalks or existing

sidewalks the goal is to maintain 1.5 metre sidewalk widths

wherever possible

Access to properties from sidewalks should be maintained

Some sections of sidewalk may be closed and crossings will be

available at traffic signals

Please take care when travelling near construction. Watch for

additional signage directing pedestrians

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Pedestrian Detours

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Brentcliffe Portal

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Brentcliffe Portal

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Laird Station – Longitudinal Section

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Bayview Station

Longitudinal Section

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E-mail:

crosstown@metrolinx.com

Online: www.thecrosstown.ca

Tel: 416-782-8118

Community Office:

Current Community Office

1848 Eglinton Avenue West

Pending Community Office

Bayview and Eglinton

Crosstown Community Relations Team