T-South is an Enbridge mainline in BC which runs from Chetwynd to to the southernmost point at the Canada/U.S. border at Huntingdon/Sumas. The work will involve expansions and upgades, including replacing old compressor station units with new ones, adding an additional compressor station unit; and undertaking smaller upgrades and operational maintenance at various facilities along the system.

Preliminary work began with clearing in late 2019; main construction to start in spring 2020. The expected in-service in late 2021.