“Some slides we probably can predict. If we have an area that we’ve identified as being problematic, that slope can be monitored.”

West Shore RCMP confirmed no one was injured when the rocks came down and no accidents have been reported.

Experts say crews working to create a passage for the migrating salmon are dealing with some of the most difficult engineering challenges since a similar incident over a century ago.

While sockeye and chinook salmon are getting through on their own, other species such as pink salmon could still face challenges.

However, just 6,700 salmon have transited the rockslide on their own, and officials say a "tremendous" amount of work remains.

The Department of Fisheries and Oceans and the B.C. government said the daily haul has helped bring 17,391 fish upstream to spawn.

More solutions are being found to get thousands of salmon past a landslide in the Fraser River, provincial and federal officials said this week.

Officials are optimistic they will be able to save thousands of salmon effected by the Big Bar landslide.

The salmon will be ushered into an off-channel holding pond, where they will be netted and put into oxygenated tanks that will be helicoptered upstream.

The province says in a news release that Premier John Horgan briefed Prime Minister Justin Trudeau on the slide that threatens to block millions of returning salmon.