Scope of work for the project includes addition of pumping horsepower sufficient to increase the capacity of the Canadian mainline by 120,000 barrels per day.

Enbridge president for liquids pipelines Stephen J. Wuori said the Hardisty to Border mainline expansion complements the company’s market access strategic initiatives.

"The additional capacity will support increased throughput expected to be drawn through the mainline by the market access initiatives," added Wuori.

"Plenty of scope still remains for further low cost expansion to accommodate additional throughput in the latter half of the decade."

Enbridge Pipelines will undertake the low cost expansion which will be complete in 2014.

The expansion remains subject to National Energy Board approval and to finalization of scope and approval by shippers.