chaplin & avenue construction liaison committee meeting - november 2017

CROSSTOWN LRTConstruction Liaison

CommitteeNovember 1, 2017

2

Avenue Construction Updates

3

Short Term Activities Area Duration

Connection borehole and

tunnel concrete pour

At Eglinton and Highbourne 1-2 days remaining to complete drilling

2 weeks concrete pour - upcoming

Dewatering work (overnight

work)

Centre line of Eglinton from

Braemar to Lascelles,

including crossing Avenue

Road

1-2 weeks preparatory works - completed

1-2 weeks drilling – underway

Dewatering work (daytime)

Installation pumps and

trenching for connection

pipes

Eglinton north and south side

from Oriole Pkwy to Lascelles

Approx. 2 weeks remaining

Sewer bypass (daytime) and

Sewer lining (24 hour work)

Eglinton between Braemar

and Lascelles, including

crossing Avenue Road

4 – 6 weeks

Sewer bypass installation underway

Watermain lining Eglinton from Avenue to

Oriole Parkway

2 weeks

Pre-inspections for temporary service

connections underway

Avenue Station: What to Expect November & December 2017

4

Short Term Activities Area Duration

Connection borehole and

tunnel concrete pour

Eglinton and just west of Avenue

Road

December/January

2 weeks drilling

2 weeks concrete pour

Crane installation at both

entrances

Main and Secondary Entrances Delivered and installed during 1

week

Secondary Entrance – mid November

Monitoring instruments

(installations, surveying and

monitoring)

Eglinton from Braemar Blvd to

Lascelles Blvd

Increased frequency of

survey/monitoring crews

Installations complete in early 2018

Avenue Station: What to Expect November & December 2017

5

Avenue Station: Start of 24 Hour Mining

• Mining operations are included in the 2010 Toronto Transit Project Noise By-Law Exemption to allow for tunneling and related work to occur 24 hours a day.

• A robust noise reduction plan based on major international projects such as the Boston Big Dig, Crossrail in London and the Thames Tideway Tunnel has been developed to minimize impacts on the local community.

– Implement noise reduction measures at the station construction sites

– Continually monitor noise and vibration throughout construction

– Adjust noise reduction measures at the construction sites as required

– If necessary, consider additional measures for residences in potentially sensitive zone

– Ensure proactive communications with the community before and during construction

Long Term Construction Activity Area Duration

Beginning of 24 hour mining work

at Secondary Entrance

Secondary Entrance November 2017 - 2019

Beginning of 24 hour mining work

at Main Entrance

Main Entrance January 2018 - 2019

6

Sewer Lining Update

• Sewer bypass installation (underway)

– Bypass pipes and equipment will be in place until lining of the larger sewer line is completed

• Sewer Lining (November)

– 3 weeks of work, approximately 3 days of work per section

– Overnight work required for lining operations occur on a continuous basis for the 3 days per section

– Overnight work required to avoid sewer/water service disruption to businesses and residences during daytime hours

– On Eglinton Ave from Braemar to Lascelles, and small section on Avenue Road, Oriole Pwky and Highbourne

7

Watermain Lining

November

• Temporary Water Connections for Watermain lining (150mm main)– Activity will take approximately 2 weeks– Minimal overnight work required (for connections ) to avoid water service

disruption to businesses and residences during daytime hours– Properties on north side of Eglinton, from Avenue to Oriole Pwky will be

connected to temporary water supply– Properties will be connected to the temporary services from a feeder pipe in

the laneway. Details are currently being determined based on visits to properties.

– Minor trenching work possible in laneway to accommodate temporary water connections

– Minor trenching work between 256 and 250 Eglinton Avenue West to connect to the water supply for the temporary water service connections

• Installation of water valve on 300mm watermain – late 2017– Activity will take approximately 1 week of work– Sidewalk in front of 259 Eglinton Ave

8

Tunnel Backfilling

Prior to mining works, CTS must fill portions of the tunnels with concrete, this involves drilling from the surface all the way to the TBM tunnels. There are two separate phases to this work.

Phase 2 – Concrete Pouring - Upcoming

• Crews will complete the concrete pours one area at a time.

• Each area will take approximately 2 weeks to complete the concrete pouring.

• A work zone will be set up around the concrete trucks as they pour, and it will be taken down nightly.

• Concrete pour work will occur between 7:00AM and 11:00PM.

• During the pouring phase, there will be an increase truck flow to deliver the concrete to the site.

• Once the concrete pouring is complete the roadway holes will be filled and restored.

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Avenue Station - Main Entrance Progress

September 2017

June 2016

September 2016

May 2017

10

October 2017June 2017

Avenue Station – Secondary Entrance Progress

April 2016

October 2016

11

Avenue Station - Aerial View

90% Design Rendering

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Avenue Station – Main Entrance

90% Design Rendering

13

Avenue Station – Main Entrance

90% Design Rendering

14

Avenue Station – Secondary Entrance

90% Design Rendering

15

Avenue Station Area Map

16

Chaplin Construction Updates

Chaplin Station Construction Update

October 2017

Demobilize Tertiary Entrance site

Telecommunications (Bell) utilities relocation within the southwest station box area

Installation of special piles at the south east station box area

November 2017

• Continue sanitary sewer installation

• Commence piling at the southeast corner of Chaplin Cres and Eglinton Ave W

• Implement new traffic stage on the north side of Eglinton Ave W – Nov 1

• Commence hydro utilities relocation at the northeast station box area

• Commence piling at the northeast station box area

December 2017

• Overnight diversion of existing combined sewer

Chaplin Station 2017 Look Ahead

Year Quarter Construction Activity

2017

Q4

(October-

December)

• Utilities Relocation:

• Hydro Relocation

• Sanitary Sewer Installation

• Support of Excavation:

• Piling at Northeast Station Box

• Piling at Southeast Station Box

2018 Q1

(January-March)

• Utilities Relocation:

• Sanitary Sewer Installation

• Temporary Watermain Bypass

• Support of Excavation:

• Piling at North Station Box

• Shallow Excavation and Roof Slab Construction

Chaplin Station: Current Construction Staging

November 1 for approximately three (3) months

Chaplin Station Concept: Aerial View

Main Entrance

Secondary Entrance

*60% rendering

Tertiary Entrance

Chaplin Station Construction Progress

21

GUIDEWALL INSTALLTION

TORQUING BOLTS FOR

SPECIAL PILE

TERTIARY ENTRANCE PILES

PREP WORK FOR TRAFFIC FLIP

22

Local Area Map

Station(s) under construction