Traffic is being re-routed through the small community of Ivony's Cove.
Constable Gina Wheeler of the Clarenville RCMP says they were first made aware of the landslide on Saturday around 4 p.m. when they received a call from a motorist who reported rocks falling from a cliff.
Luckily, there were no injuries, but Wheeler says the trailer portion of a transport truck was struck by falling rocks.
The Department of Transportation is blasting large rocks at the site.
Officials say the section of highway could be closed for up to a week.