A semi rollover is causing traffic delays on Highway 1, east of the Pilot Butte overpass.

The closure is around 11 kilometres south of Sicamous, between Seed Road and Davidson Drive.

A city councillor is calling the intersection at 112 Avenue and Country Hills Boulevard in northwest Calgary a "challenge" after a tractor-trailer rollover shut down parts of the street on Friday.

A semi is on its side, approximately two kilometres west of Three Valley Gap on the Trans-Canada Highway.

The video, which was sent to Global News and has been seen by RCMP, shows the truck veering from side to side on the highway before falling onto its side.

DriveBC said vehicles were temporarily being allowed through using the high occupancy vehicle lane.

Moose Jaw RCMP said the semi driver was not wearing a seatbelt and was driving distracted when his semi rolled on Highway 1 in Saskatchewan.

A semi roll-over closed a stretch of road northwest of Winnipeg Wednesday morning.

A semi truck rolled on the QEII in central Alberta early Thursday morning, spilling the diesel it was hauling and shutting down a section of the major highway.

A semi-truck and trailer that was hauling flour flipped on its side on Circle Drive near the Lorne Avenue exit on Wednesday.