2018 Greater Sudbury Lateral Replacement

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Project Phase: In-Service

The project is now in-service. We would like to thank Greater Sudbury, its residents, and all communities in the local area for their support during the construction process! Project clean-up work will continue throughout 2019.

Enbridge Gas has replaced portions of the Greater Sudbury Lateral Pipeline System to ensure the continued reliable delivery of natural gas and serve an increased demand in Greater Sudbury and surrounding area. (Note: As of Jan. 1, 2019, Union Gas and Enbridge Gas Distribution have amalgamated into one utility with the legal name Enbridge Gas Inc.)

Placeholder mapThe project involved removing an existing 10-inch diameter pipeline and replacing it with approximately 19 kilometres of new 12-inch pipeline.

The project occurred in two sections: the first between our existing Coniston and Frood Road Stations, and the second between our Azilda and Walden Stations. (Please click on the map image to the right to see the project route).

OEB review and approval was required before this project could proceed. We submitted a Leave-to-Construction application to the OEB on May 5, 2017. On Sept. 28, 2017, the OEB approved the project. Work began in April 2018 and the project went in-service in late October. Clean-up work will continue into 2019.

A key part of the planning process involved consultation with local landowners, Indigenous communities, government agencies, project neighbours, and other stakeholders that could be impacted by the project. We engaged interested parties through project notices and letters, individual meetings/phone calls (where requested), regular website updates, and through pre-construction information sessions.

Latest Updates

Nov. 13, 2018

The project is now in-service. We would like to thank Greater Sudbury, its residents, and all communities in the local area for their support during the construction process! Project clean-up work will continue throughout 2019.


August 21, 2018

View our third project community update with a look at how we construct pipelines.


June 22, 2018

View our second project community update.


April 2, 2018

Construction is now underway. Make sure to check back here throughout construction for the latest updates.


March 16, 2018

View our first project community update for information about our upcoming construction.


Sept. 29, 2017

The Ontario Energy Board (OEB) has approved the project. You can view the OEB decision here. Pre-construction project planning continues, with construction expected to begin in mid-2018.


May 9, 2017

Please view our presentation to Greater Sudbury City Council, from the 7:00 minute to 25:30 minute mark.


March 1, 2017

We were pleased to speak with those who attended our Public Information Session on March 1, 2017, at the Italian Club of Copper Cliff. For those who could not attend, please see the Public Information Session information that was provided. We also have a French version available.


Dec. 1, 2016

We were pleased to speak with those who attended our Public Information Session on Dec. 1, 2016, to discuss our Environmental Study process. For those who could not attend, please see the Public Information Session information that was provided, including detailed project maps. We also have a French version available.


Environment a priority

We are committed to minimizing the effects of our projects and operations on the environment.

AECOM was retained to prepare an Environmental Report to assess any potential environmental and socio-economic effects that may result from the project and outline plans for avoiding and/or mitigating any effects, where possible. Examples of potential environmental considerations that will be assessed in the report include, but are not limited to:

  • Existing land uses, local residents and businesses
  • Designated natural areas, woodlots, wetlands and other vegetation (e.g. hedgerows)
  • Wildlife and wildlife habitats
  • Watercourses and waterbodies, aquatic species and habitats
  • Species at Risk
  • Groundwater resources
  • Soils, bedrock geology and extractive resources (aggregates)
  • Archaeological resources and built heritage

The Environmental Report was prepared in accordance with the OEB's Environmental Guidelines for the Location, Construction and Operation of Hydrocarbon Pipelines and Facilities in Ontario (2016). The report accompanied the Leave-to-Construction application that was submitted to the OEB. Please view the main Environmental Report here, and check out the appendix as well. (Note: The appendix file contains numerous high-resolution graphics and may take several minutes to load.)

The local community will benefit from the incremental taxes that we will pay annually.