CROSSTOWN LRTConstruction Liaison

CommitteeOctober 4, 2017

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Avenue Construction Updates

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Avenue Station Updates

Look Ahead 2017• Excavation continues at Main & Secondary Entrances

• Installation of dewatering pumps and trenching for connection pipes

• Tunnel Backfilling – October work at Highbourne

– December/January work at Braemar to Avenue

• Centreline well installations to be completed overnight (October)

• Monitoring instrument installations continue from Lascelles Blvd to Braemar

• Sewer works (October/November)

• Watermain works (October/November)

• Crane installation at both entrances (Secondary entrance October/November)

• Mining at Secondary Entrance to begin early November 2017

• Mining at Main Entrance to begin early 2018

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Dewatering Update

• Trenching works underway complete on south side of Eglinton from Avenue to Oriole Pkwy. Still to complete remaining sections on south and north side for full length of station.

• In October 2017, (Oct 10th start) crews will install the system in the centre of the road on Eglinton Aven W from Braemar Ave to Lascelles Blvd. To do this, three of four traffic lanes on Eglinton must be closed.

• To minimize traffic disruption for the community, transit users and local businesses, this work is being done overnight. Paid Duty Police Officers will maintain safe traffic flow.

• Noise can be expected from the use of a pavement saw cutter, a hydrovacuumtruck, and a drilling machine.

• Saw cutting and hydro vaccing work will only occur between 8pm and 12am for first 2 weeks

• Drilling will occur for the following 1-2 weeks between 8pm and 5am however various noise mitigation measures will be but in place to reduce impact.

• Crews will be moving along the roadway from west to east and equipment is expected to change position approximately every 3 days.

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Dewatering Works

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Sewer Lining Update

• Preparatory work (started this week)

• Sewer bypass installation (October)

– Approximately one week of work

– Trenching work to cover portions of bypass through road crossings

• Sewer Lining (October/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

– Notice to be distributed locally

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Instrumentation Update

• Installation of instrumentation continues from Braemar to Lascelles

• Increased frequency of survey/monitoring crews at the beginning of mining

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Watermain Lining

• October/November

• Temporary Water Connections for Watermain lining (150mm main)

– Activity will take approximately 2 weeks

– Minimal overnight work required (for connection at 250 Eglinton Ave W)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

• Installation of water valve on 300mm watermain

– Activity will take approximately 1 week of work

– Sidewalk in front of 259 Eglinton Ave

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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 1 – Drilling Bore Holes • First the holes will be drilled into the roadway and down into the tunnels in two different

areas: – South side of Eglinton, just east of Highbourne Avenue. – South side of Eglinton, just west of Avenue Road.

• A work zone will be set up around these two areas and will remain in place while drilling work happens (approximately 2 weeks for each area).

• Drilling work will occur between 7:00AM and 11:00PM. • The holes will then be covered with steel plates until the second step of concrete pouring

occurs.

Phase 2 – Concrete Pouring • 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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Highbourne Area Work Zone

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Construction Progress Picture

Main Entrance – Level 3

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Construction Progress Picture

Secondary Entrance

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Construction Progress Picture

Secondary Entrance - Welding

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Construction Progress Picture

Dewatering

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Chaplin Construction Updates

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Chaplin Station Construction Update

September 2017

• Piling at the Tertiary Entrance was completed.

October 2017

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

completed by the end of the month

• Diversions work for the existing combined sanitary sewer system and installation of the new

sanitary and storm sewer infrastructure to be completed by the end of the month

• 3 special piles will be installed by the end of the month on south east side of station box.

• Implement hybrid construction staging to commence piling of the station box – week of October

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November 2017

• Begin THESL chamber break out and cable relocation at southeast station box area.

• Piling at northeast corner of station box

• Piling at southeast corner of intersection once utility work is complete.

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Chaplin Station 2017 Look Ahead

Year Quarter Construction ActivityApproximate

Duration

2017

Q4

(October-

December)

• Continue wet and dry utility relocation

• Implement hybrid traffic staging on the north side of

Eglinton Ave W and commence piling on the north

side of the station box

• 2 months

2018 Q1

(January-March)

• Continue with piling, begin shallow excavation and

roof slab construction.

• 5.5 months

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Chaplin Station: Current Construction Staging

Began August 30, 2017 for approximately eight (8) weeks

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Chaplin Station: Upcoming Construction Staging

To be implemented week of October 28, 2017

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October Overnight Wet Utilities Work

• Diversions of the existing combined sanitary sewer connections along Eglinton Ave W are

required while crews install the new sanitary sewer infrastructure.

• Diversion work involves cutting into the existing combined sanitary sewer and pumping the

waste water while the new infrastructure is installed.

• Rationale for overnight work:

– Performing when use of the sanitary system is lighter will expedite the activity

– Will minimize the public’s exposure to odor of sewage when existing sanitary pipes are cut

– Reduces sewage flow will improve safety conditions for workers

• Equipment to be used overnight includes excavators, trucks, skid steers and site lighting

• Dates: Work will take place between mid-October and mid-January 2018, with

approximately 15 days of overnight work

• Hours: preparatory works (concrete removal, hydro-vacuuming, etc.) from 7:00 a.m. to 11:00

p.m.; diversion work (cutting pipes, excavation, hauling, etc.) from 11:00 p.m. to 7:00 a.m.

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Chaplin Station Concept: Aerial View

Main Entrance

Secondary Entrance

*60% rendering

Tertiary Entrance

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Chaplin Station Construction Progress

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SPECIAL PILES TO BE

INSTALLED

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Chaplin Station Construction Progress

PILING AT TERTIARY

ENTRANCE

PILES AT SE STATION BOX

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Chaplin Station Construction Progress

DRY UTILITIES PROGRESS

TRENCH BOXES

FINISHING TELUS RELOCATION AT

THE ROW

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Chaplin Station Construction Progress

25June 2017