A New Natural Gas Transmission Pipeline
The Eastern Mainline Project will include four sections of new 36-inch diameter natural gas transmission pipeline between the City of Markham and the Township of Edwardsburgh/Cardinal.
New Right-of-Way Required for Pipeline
A new right-of-way will be required for the pipeline. Where possible, the new right-of-way will be located adjacent to the existing corridor. Route adjustments away from the existing pipeline corridor will be considered in some locations due to environmental features, adjacent land uses and construction constraints. Consultation with First Nation and Métis communities and organizations, municipalities, landowners, residents and other stakeholders as well as various environmental and engineering studies will be considered when determining the final route which is subject to a National Energy Board (NEB) application and review process.
TransCanada will also need to add nine new 11MW compressor units at five existing compressor stations along the route to move the natural gas efficiently through this 36-inch diameter pipeline. The new units will be located on TransCanada’s property. The five existing compressor stations are located in the Municipality of Clarington (Station 134 – Bowmanville), the Township of Alnwick- Haldimand (Station 136 – Cobourg), the Township Tyendinaga (Station 139 – Belleville), the City of Kingston (Station 142 – Kingston) and the Township of Augusta (Station 144 – Brockville).