Avenue Station Construction Updates - December 6

Mining Update

Mining operations at the Avenue Station Secondary Entrance continues. Mining occurs on a 24hr schedule. 

• This week, crews continue to cycle through the 24hr excavation sequence. Some periodic jackhammering to break concrete is required.
• Noise impacts to your building depend on how the vibrations travel through the soil and interact with the foundation and structure of your building.
• This work will continue until mid-December, with scheduled relief on weekends.
• Crosslinx Transit Solutions has implemented several noise reduction levels on site to mitigate the impact felt by the community due to mining activities. Enclosures are used to cover equipment like generators and pumps, silencers are used to reduce noise from fans, delivery routes and times are selected to minimize disruption, and alternate methods of breaking concrete are being tested – to name a few.
• If you experience disruption from mining operations, please call our 24/7 phone line at 416-782-8118.

Other Construction Activities at Avenue Road and Eglinton

Current Works at Avenue Station:

Sewer Lining Work – 24hr schedule  

• Mobilization of the sewer lining work zone began early December and it will be completed by mid-December.
• Sewer lining work is very dependent on weather; crews are unable to block the sewer pipes to install the liner when it is raining outside.
• The work zone for the sewer lining work is at the west end of the existing construction site on the roadway around the central manhole used to access the sewer sections.
• The trailer contains the sewer lining material and equipment for the insertion of the liner. It will be required each time the lining of a new sewer section begins, it may be required to remain in place periodically for a few days depending on work progression and weather. Once the materials are inserted, the trailer can be moved out of the way.
• Throughout the sewer lining work, there will be approximately 7 times that the trailer will need to come back to begin the new sewer sections. This will take place in the overnight periods (8:00 PM to 6:00 AM). Some parking spaces on the north side of Eglinton will be impacted during the nightly work zone extensions.
• Eglinton will be down to one lane in each direction east of Avenue Road around the sewer lining work zone. There are some parking reductions on the south side of Eglinton between Highbourne Road and Oriole Parkway.
• Short duration temporary lane closures will be required at other manholes in the area as crews pull the lining through each sewer section. Read the notice for details on these locations.
• Sewer lining work uses a resin that contains styrene to cure the liner to the inside of the sewer pipe. When heated during the curing process, the resin has a very distinct chemical smell – it is not harmful. 
• For more information on styrene, please visit the Styrene used in Cured In Place Pipe Relining page on the City of Toronto Environmental Health website.

Watermain Lining Work – 24hr schedule  

• Watermain lining is required in the vicinity of Avenue Station to increase the durability of the watermains during mining operations.
• The section of watermain to be lined for the Secondary Entrance is connected to the properties on the north side of Eglinton between Avenue Road and Oriole Parkway.
• Temporary connections will be installed through the laneway behind these properties, and two connection locations. The first is a connection to the standpipe in front of 288 Eglinton Avenue West, and the second is a connection to the hydrant in front of 250 Eglinton Avenue West.
• Watermain lining work will begin the week of December 4, 2017.  The temporary connection service set up will last approximately 2 weeks.
• The watermain lining operation will take approximately 4 weeks, and is scheduled to occur from mid-December to mid-January. During this time, affected properties will be connected to the temporary water service.  

Dewatering Work - Daytime Work  

• The dewatering system will help remove ground water from the station area to help ensure stability as we complete mining operations underground.
• Daytime dewatering installations will continue periodically until February 2018.
• Currently work is progressing on the trenching required on Eglinton Avenue on the west side of Avenue Road. Approximately 2 weeks of work is remaining.
• Once work at the west end is complete, crews will relocate to complete the remaining trenching from Oriole Parkway to Lascelles Blvd. This work is expected to occur during the month of January.

Monitoring Instruments (installations, surveying and monitoring) - Daytime Work  

• Monitoring instruments give information about soil conditions during construction operations. This is an ongoing program; instruments will be continuously checked throughout mining operations.
• Monitors continue to be installed around the station area; installation locations are in the centre of Eglinton and on the sidewalks between Braemar and Lascelles.
• Already installed monitors will continue to be checked frequently throughout construction.

 
SHORT TERM LOOKAHEAD:

Tunnel Backfilling Operations

• Tunnel connection bore hole drilling at Highbourne and Eglinton is complete.
• Concrete pouring operations on the north tunnels is complete. Backfill of the tunnels on the south side of Eglinton at Highbourne will begin following sewer lining work and will be completed within a two-week period.
• Why backfill portions of the tunnels? The tunnel backfilling “plugs” the tunnels on either side of the area to be excavated. This protects the tunnels and the operation by ensuring the work is localized to the small section. 
• Main entrance tunnel backfilling operations will take place in January and February. There will be 2 weeks of drilling on the south side near CIBC where there is a work zone set up required. Concrete pour will take place during a two-week period with a work zone only set up during the time of the pour; it will not remain in place.
• The north side boreholes are contained within the existing construction areas.

Watermain Valve Installations - Daytime Work

• Crews will work to install a watermain valve to close a section of the watermain. There is no permanent impact to local properties.
• Work will take place in mid-December and will take approximately one week.
• A short duration water shut off will be required overnight to install the valve.
• During approximately 2 days, a small construction zone will be required on the south side of Eglinton Avenue, east of Highbourne.  This will facilitate the excavation required to expose the watermain. It will be plated until the valve is installed and then restored. 

STAY INFORMED

• Sign up for e-mail updates at www.thecrosstown.ca/sign-up or download the aCrosstown traffic app to get real-time traffic and transit information for the Eglinton corridor.

PLEASE CONTACT US

• If you would like more detail about this work or any other aspect of the Eglinton Crosstown project, please contact the west community office at (416) 782-8118.