eglinton crosstown leaside open house presentation
DESCRIPTION
Councillor John Parker's Eglinton Crosstown Open House Presentation, March 18, 2014TRANSCRIPT
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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:
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