Line 21 (Norman Wells Pipeline) Segment Replacement Project

Enbridge operates Line 21 (the Norman Wells Pipeline), which carries crude oil 870 kilometres (540 miles) from Norman Wells, Northwest Territories to Zama, Alberta, where it enters a third-party pipeline system and is sent on to Edmonton.

The 12-inch-diameter pipeline travels approximately 750 km (466 miles) through the Northwest Territories, with a design capacity of 50,000 barrels per day. Enbridge pipeline assets in the Northwest Territories include pump stations and related facilities at Norman Wells, Wrigley, and Mackenzie.

In November 2016, as a precautionary measure, Enbridge shut down Line 21 to investigate and address slope instability near the Mackenzie River crossing approximately 10 km east of Fort Simpson.

At that time, product was safely removed, or purged, from the segment of Line 21 that crosses the Mackenzie River and re-injected into the pipeline downstream of the river crossing.

(Learn the latest on the Line 21 Segment Replacement Project by reading our Fall 2017 community newsletter.)

There has been no release of product and Line 21 remains shut down. We continue to actively monitor slope movement using geotechnical measuring instruments and by conducting visual inspections within the pipeline right of way.

We value our relationship with community stakeholders and are committed to engaging with you early in the planning process, to receive your input and identify any concerns you might have.


If you have any questions or concerns, or if you require further information regarding Line 21, please call our toll-free line at 1-888-263-3654 or send an e-mail to:

Or you can reach us via mail at:
Enbridge Pipelines (NW) Inc.
Box 280
Norman Wells, NT
Canada XOE 0V0

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