Just after midnight tonight, ships will begin to pass through the Soo Locks at Sault Ste. Marie.
Area engineer for the locks, Kevin Sprague, says this is a busy time for shipping.
Sprague says they’re evaluating the benefit-cost ratio of building a new Poe Lock, estimated to cost $600 million.
If that lock would go down, it’s believed $1.1 trillion of economic output would be lost.