Leaside - Laird Construction Liaison Committee Meeting - July 2017

CROSSTOWN LRTConstruction Liaison

CommitteeJuly 12, 2017

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Agenda

• Leaside Station Update

• Laird Station Update

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Leaside Station Concept: Aerial View

Main Entrance

Secondary Entrance

*60% rendering

Accessible Entrance

Accessible Entrance

Outdoor bicycle parking

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Year Quarter Construction Activity / Closure

2017

Q1

(Jan-March)

• Bell, hydro and other telecom utility relocations

• Support of excavation (shoring) underway at Main Entrance

• Stage one for support of excavation activities in right of way

(work will be completed in 4 stages)

Q2

(April-June)

• Temporary Site Service Connections (hydro)

Q3

(July-Sept)

• Stage one ongoing

• Drill to move to Secondary Entrance in early July

• Stage one B - Aug/Sept

• Stage two support of excavation

• Watermain Investigations – north east corner

• Dewatering System Installation

• Wet utilities – north west on Eglinton Ave

Q4

(Oct-Dec)

• Stage three of support of excavation activities in right of way

Leaside Station: What to Expect in 2017

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Water main Investigations

• Crews will expose the portions of a water main on the north east corner of the Bayview Avenue and Eglinton Avenue East intersection.

• Pedestrians, businesses and residents near the work site can expect to hear trucks, hydro-vaccing, excavators, backhoes, saw-cutting, and other construction equipment.

• WB TTC stop shifted to east (near Sushi Restaurant)

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Overnight Line Painting

• Leaside station is required to do a refresh to the existing crosswalk painting at the

Bayview Ave and Eglinton Ave E intersection.

• Due to the volumes of traffic in the area and existing construction set up reducing

available lanes, these works will be completed overnight.

• A truck mounted water-blasting system will perform the work with high pressure water

jets and a vacuum in front of the truck. The operator will make several “see-saw” passes

over the crossing. A hand grinder will also be required which has a gas powered engine,

compressor and is moved around the area by a worker.

• In an effort to mitigate noise where possible CTS has installed a broadband back up

alarm on this vehicle rather than the usual tonal alarm which greatly reduces the

startling sound, spread of the sound and annoyance while maintaining safety.

• Work will occur during one (1) overnight period either on July 14 (Friday night to

Saturday morning) or July 21

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Support of Excavation (shoring): Stage One

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Proposed Stage 1B

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Proposed Stage 2

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Progress Picture – Main Entrance

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Progress Picture – Station Box

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Laird Station Concept: Aerial View

Main Entrance (accessible entrance)

Secondary Entrance

*60% rendering

S

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Year Quarter Construction Activity

2017

Q2 (April-June) • Crane erection secondary entrance – completed

• Mining operations at Secondary entrance

• Crane erection main entrance – completed

• Dewatering System installation

• Concrete pour into tunnels

• Utilities protection: Gas Main Support & Sewer Lining

• Excavation ongoing at Main entrance

Q3 (July-Sept) • Ongoing mining operations at Secondary entrance

• Dewatering System installation - underway

• Concrete pour into tunnels - underway

• Utilities protection

• Gas Main Support - underway

• Sewer Lining - underway

• Start of mining operations at Main entrance

Q4 (Oct-Dec) • Mining continues at both entrances (mid 2017 to late 2019)

Laird Station: What to Expect in 2017

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Laird Long Term Closure

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Support Works – Utilities Mitigation

What to expect: Sewer Lining

• Sewer lining is a process intended to increase the durability of the sewers.

• A section of the sewer system is cleaned and vacuumed and a CCTV inspection is completed. Then a liner is inserted into the sewer section from within the maintenance holes

• The process is designed to be generally non-disruptive and eliminates the need for excavation of the entire sewer section.

• Maintenance holes that will be accessed are located on Eglinton Avenue East between Sutherland Drive and Brentcliffe Road.

• Lane closures will be required for this work. Pedestrian access will be maintained.

• Above ground pipes will be in place between maintenance holes to bypass pump around the sewer lines during the liner installation.

• Due to the nature of the work, an unpleasant chemical odour may be noticeable in the vicinity of the maintenance holes and, in some circumstances, in the home. It is not harmful, however it can be limited by covering floor drains while the sewers are being lined.

A public notice with additional details will be distributed prior to work beginning.

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Support Works – Utilities Mitigation

What to expect: Sewer Lining

Sewer Lining Activity Examples

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Progress Picture – Main Entrance

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Progress Picture – Secondary Entrance

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Progress Picture – Secondary Entrance

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Tunnel Work

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Laird Mural Update

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Local Area Map

Station(s) under construction