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Presentation made on September 10 about what is happening on the Eglinton Crosstown on the east side.
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LEASIDE OPEN HOUSE
EAST TUNNEL CONSTRUCTION
September 2014
MSF – Maintenance & Storage Facility
Eglinton Crosstown LRT
Project
• $5.4 B (2010$), 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
East Tunnel Construction Timeline
• At future station locations and underground structures
(emergency exits) utility relocation and headwall installation is
expected to last approximately six to eight months on average
at each location
• 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
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 it has placed behind it to line the tunnel
• 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
Assembly of Tunnel Boring Machines
Launch Shaft
Construction of Launch Shaft near Brentcliffe
Construction workers are busy preparing the east
launch shaft in advance of the tunnel boring machines
Construction of Launch Shaft near Brentcliffe
In advance of secant pile installation, workers have built a
guide wall on the surface
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
assembled and launched toward Yonge
• Utility relocation occurred before excavation began
• Contiguous concrete piles (columns) will support the
earth walls around the shaft
Sequence of Tunnel Drive
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
and Jet Grout
• Machinery including drill rigs, grout tanks, diggers
and other equipment
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
• Metrolinx is coordinating 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 gas relocation works with Metrolinx
Tunnel Drive Works 2014
Secant pile wall: formed by
intersecting concrete piles
Jet grout wall: uses engineered
grout to form wall on site
Jet Grout Headwalls
• Air, water and cement grout are simultaneously injected by a rotating rod at very high pressure
• All materials are natural inert materials and have no negative impact on ground water and the environment
Jet Grout Rig
Jet grout rigs will be
used for headwalls
construction at
future stations and
the extraction shaft
at Yonge Street
Laird West Headwall Construction
• Headwalls are underground support walls located at the east and
west ends of the station location
• In order to minimize road occupancy on Eglinton, the jet grout plant is
located on Sutherland, on the roadway at the northeast corner of
Sutherland and Eglinton
• The grout plant will be set up in early September 2014, followed by
the construction of the south half of the headwall. Utility work has
already been relocated
• Work will take place in two stages. Each stage is expected to last
approximately two to three months
• The grout plant will be at this location for the duration of both stage
one and stage two of headwall construction for approximately four to
six months
Laird West Headwall Construction
First stage – South headwall construction
• A work zone will be set-up on the southeast side of Eglinton and Sutherland Drive
Second stage – North headwall construction
• A work zone will be set-up on the northeast side of Eglinton and Sutherland Drive
Traffic Changes in the vicinity of Sutherland
• First stage: a single lane of traffic in each direction will be open on the north
side of Eglinton
• Second stage: a single lane of traffic in each direction will be open on the
south side of Eglinton
• Left turns from Eglinton to Sutherland for eastbound and right turns from
Eglinton to Sutherland for westbound traffic will be prohibited during both
stages
• The west driveway of Toronto Finnish-Canadian Senior Building at 795
Eglinton Ave E will not be accessible. The east driveway will remain open.
Metrolinx and its contractor will assist with any emergency access required
• No northbound through traffic on Sutherland will be allowed on the north
side of Eglinton. Northbound traffic on Sutherland must exit onto Eglinton
• Southbound traffic on Sutherland will NOT be affected
Pedestrian Detour in the vicinity of Sutherland
First Stage - South Headwall Construction
• Pedestrian sidewalk on the south side of Eglinton from
approximately east of Sutherland Drive to the west driveway of
Toronto Finnish-Canadian Senior Building at 795 Eglinton Avenue
East will be temporarily closed
• Pedestrians will be diverted to use the north Eglinton sidewalk and
cross at the intersection of Laird Drive and Eglinton Avenue East to
access the businesses located between Laird Drive and Sutherland
Drive along Eglinton. Please return to the south sidewalk at Laird
• The sidewalks in front of the businesses between Laird Drive and
Sutherland Drive will remain open. Metrolinx will provide business
signs indicating that the businesses are open
Pedestrian Detour in the vicinity of Sutherland
Pedestrian Detour in the vicinity of Sutherland
Second Stage - North Headwall Construction
• During the second stage of headwall construction, all sidewalks on
Eglinton Avenue East and Sutherland Drive will reopen
• In some cases, some sidewalks may require short-term temporary
closures for the safety of pedestrians. Please follow signs directing
pedestrians and take care when travelling near construction areas
Emergency Exit Buildings (EEBs)
• EEBs are built in between the stations when station
platforms are more than approximately 760 metres apart to
allow for easy evacuation of passengers
• The construction of an emergency exit building includes
the building of an evacuation pathway, a set of stairs from
the tunnel to ground level, and a small building on the
surface
• The scale of construction is similar to building a small-scale
underground station
• Generally, it takes up to 24 months to complete
construction at each EEB
Renderings of EEB on Eglinton near Donlea Avenue
Looking north
Looking south
Renderings of EEB on Eglinton near Petman Ave
Looking north
Looking south
Construction work at Donlea Avenue
Drilling rig in action installing secant piles for the
emergency exit building at Donlea Avenue
Cross Passages
• A cross passage is a tunnel connecting the eastbound
and westbound tunnels for maintenance and/or
emergency purposes
• Crews will be building cross
passages after the tunnels
have built at each location
• Some construction works (soil
dewatering) will be visible at
street level while most work
takes place underground
Emergency Exit Buildings and Cross Passages
• Cross passage and emergency exit construction will take place between late 2014 through late 2016
Donlea
Avenue
Petman
Avenue Walder
Avenue
Lillian
Street Rumsay
Road
Our 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 to improve the flow
Traffic Lane Reductions
Temporary road closure,
local traffic only
Traffic reduced to one lane
in each direction
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
Pedestrians
• In the construction zone, for temporary sidewalks or
existing sidewalks the goal is to maintain minimum
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
Pedestrian Detours
Sign directing pedestrians Temporary detour of
pedestrian sidewalks may
be required
Brentcliffe Portal
Future Brentcliffe at Eglinton
West bound East bound
Light Rail Train in the Tunnel
Laird Station – Longitudinal Section
Bayview Station
Longitudinal Section
Mount Pleasant Station
Longitudinal Section
Crosstown Community Relations Team
40
East Community Office
660 Eglinton Avenue East
(Sunnybrook Plaza at Bayview and Eglinton, next to Home
Hardware)
E-mail: crosstown@metrolinx.com
Online: www.thecrosstown.ca
Tel: 416-482-7411
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