Rock slide shuts down Highway 16 from west of Jasper, Alta., to B.C.

Officials didn't have timeline on when highway would reopen before 4 a.m. Saturday

A rock slide in the Rocky Mountains early Saturday morning has forced Highway 16 to close to all traffic, from just west of Jasper, Alta., and stretching partway into B.C.

Mounties are helping Parks Canada clear the highway and redirect a lot of traffic, but there were no reports of the slide hitting any vehicles or injuring anyone, Jasper RCMP said in a news release issued shortly before 3:45 a.m. MT.

Jasper Highway 16 Closed

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The highway is closed from about 12 kilometres west of the Jasper townsite, to Tête Jaune Cache in B.C., which is just west of the interprovincial border, according to maps produced by the Alberta and B.C. transportation ministries.

The rock slide has completely blocked the highway, with debris near the Miette River, according to Alberta 511. Police and the transportation ministry are asking drivers to find alternate routes while the highway is cleared and safety assessments are done.

The highway is expected to be closed for a long time, but before 4 a.m. Saturday, there was no clear timeline when the highway will be reopened.

An update is expected at noon Saturday, Alberta 511 says.

This story was originally published by CBC News on April 25, 2026.

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