(Leigh Road interchange)

Rock blasting along Trans Canada Highway will begin this week, causing delays for motorists along a stretch of the road.

The project to widen the TCH to four lanes between the Leigh Road Interchange and West Shore Parkway will be under way from now until spring 2020.

On weekdays, motorists along that section of the highway can expect intermittent delays of up to 20 minutes while blasting takes place.

Outside of the morning rush hour, northbound traffic will be shifted to one of the southbound lanes to allow crews to safely work on the northbound shoulder.

As a result, drivers can expect single-lane traffic in each direction from 9 a.m. until close of work each day.

Although there are no construction plans from Friday evening through Sunday, weekend work may be required in the future leading to lane closures and periodic stoppages.

Once complete, the Trans Canada Highway between the Leigh Road interchange and the West Shore Parkway signal will be widened to four lanes with median-barrier separation and improved roadside protections.