Sewer Lining Activities at Oakwood Station

avril 18, 2018

What work is Taking Place?

In advance of upcoming mining works at Oakwood Station, crews must install sewer linings to the existing sewer infrastructure at the Oakwood and Eglinton intersection.

Sewer lining is a process intended to increase the durability of the sewers. The liner is a flexible membrane that is placed inside the sewers. Lining is designed to be generally non-disruptive and eliminates the need for excavation of the entire sewer section.

To facilitate this work a number of lane closures are required. The work zones are used to accommodate the machinery used to insert the flexible lining membrane into the sewer, including a generator, boiler, compressor and sometimes a hydro-vacuum truck.

·      Traffic Impact

  One lane closure required on SE corner (right turn lane) for an 8 hour period

A minimum of 1.5m will be maintained for pedestrian walkways. Access to bus stops and businesses will be maintained at all times

Oakwood sewer lining

Hours of Work

  • Sewer lining work will begin as early as April 19, 2018 and take approximately eight (8) hours. 

The CIPP process is a minimally invasive method of sewer repair and rehabilitation that is commonly used throughout the City of Toronto. Using this process allows us to complete the work through existing maintenance holes without excavating the entire sewer up through the road.


The CIPP process for sewer lining work uses a synthetic resin called styrene.  


When the resin is heated during the curing process, it has a very distinct chemical smell, sometimes described as bitter-sweet. While the smell is unpleasant, it is not harmful.


You can prevent/minimize the odour from reaching your property by ensuring that you have water in your plumbing P-traps and floor drains. You may also wish to cover the floor drain with a wet cloth and place a flat heavy object over the drain. 



  • Residents and businesses near the work zone can expected to hear noise from generators, compressors, hydro-vacuum trucks, and other construction equipment.
  • An unpleasant chemical odour may be noticeable during the sewer lining work, both in the vicinity of the work zone and sometimes in the buildings connected to the sewer being worked on. It is not harmful.
  •  In very rare occasions, during the cleaning and preparation process, air pressure in the sewer can cause water to splash out through toilets, sinks or floor drains.  While this is highly unlikely, you can prevent any instance of it occurring by taking the following precautions:

-Close the lids on all toilet bowls when not in use.
-Insert drain plugs in all sinks and bathtubs when not in use.
-If you have a float plug in your floor drain or a backwater valve installed in your house, ensure that it is free of debris and operating properly.
-Wrap the cover of your basement floor drains with plastic (i.e. a freezer bag). Place something heavy over the floor drains to keep the plastic covered floor drain covers in place.

For more information, please contact Lancefield Morgan at the West Community Office.

Thank you for your continued patience as we work to build this important project.

Please support your local businesses during construction.


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