Estimated Cost: $7.5 billion
Route: 1,660 kilometres between Hardisty, Alta., to Superior, Wisc. Crosses through Saskatchewan, Manitoba, North Dakota and Minnesota.
Capacity: Would restore the pipeline’s original regulated capacity of 760,000 barrels of oil per day and allow for further expansion to 915,000 barrels per day. The line is almost half a century old and its regulated maximum output has been reduced to about 390,000 barrels per day. The oil goes to refinery markets in Chicago, the U.S. Gulf Coast and the Eastern U.S. and Canada.
Background: In April, the National Energy Board recommended approval of the Canadian part of the project with 89 conditions. Line 3 already has a U.S. presidential permit but still requires state regulator approvals.
Note to readers: This is a corrected story. A previous version said Line 3 would be Enbridge’s most expensive project.