WATCH: Brace yourself for some weekday Turcot closures this fall

The Turcot interchange reconstruction project is heading into a new and complex phase — which will mean even more traffic headaches for you to deal with.

Among the issues you'll have to deal with in the next few weeks will be a new one — weekday closures of key sections of the interchange.

That's expected to happen between Friday morning, Nov. 9, right through the weekend, and ending on the evening of Monday, Nov. 12. And Transport Quebec is urging motorists to start planning an alternate route to get into town now, to avoid what promises to be a traffic nightmare like you've seldom seen before.

"It's the biggest closure...that we'll have, but it'll only be four days," says Sylvie Gervais, the director of mobility for KPH Turcot, the consortium behind the mammoth rebuilding job.

Highway 20, leading to and from the Ville-Marie Expressway, will be closed in both directions during that period, so that the old elevated portion of Highway 15 can be torn down without posing a risk to passing motorists.

Motorists are being asked to use the Bonaventure Expressway, or Highway 40, to get around the construction zone — which, of course, would create heavier-than-usual traffic volume on the Decarie Expressway and the 15 south, leading up to the Champlain Bridge.

Meanwhile, the teardown job on the old 15 will also necessitate several more weeks of weekend closures this fall.