Mid-Halton Outfall Pipe - Third Line & Coronation Park


Town of Oakville


Supporting expansion of the Mid-Halton Wastewater Treatment Plant by:

  • Installing a 6.3 km effluent outfall pipe from the Mid-Halton Wastewater Treatment Plant to Lake Ontario by tunneling under Third Line
  • Installing 18 diffusers/risers (pipes) in Lake Ontario
  • Work areaWork area

Fall 2014 - Summer 2018

Project No.



Brenda Kingsmill, Project Manager
905-825-6000 ext. 7622

Additional Information:

Four-hectare (0.04 sq. km) fenced area installed at Coronation Park will be located west of the east parking lot. There will be increased truck traffic in and out of the park, increased noise and vibration and occasional lane restrictions on Lakeshore Road West.

Learn about the expansion of the Mid-Halton Wastewater Treatment Plant.

Additional Photos:

Lifting the main beam into the shaft

Cutter head in the starter tunnel

Aerial view of the shaft site

Road header excavation

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