Robert Service Way will reopen in seven to 10 days "if all goes well," says Whitehorse Mayor Laura Cabott.
Speaking on CBC Radio's Yukon Morning, Cabott said work that began last week on building a 100-metre-wide sheet pile wall on the side of the road is "progressing well," although crews lost a day of work this past weekend because a piece of equipment broke.
The sheet pile wall, which is made by connecting corrugated steel sheets together and driving them into the ground, is being built at a cost of approximately $450,000 to mitigate the damage of a potential future landslide in the area.
As of Monday morning, Cabott said there are 36 piles in the ground with 50 more to go. She said the contractor is able to put in about eight to 10 piles a day, which means it should take about a week to finish the work.
"That's the best case, and assuming that there are no delays," Cabott said.
The city plans to fill the back of the piling, likely with soil, once the wall is up,
"That'll take a couple of days," said Cabott.
About 2,000 cubic metres of sand, silt and soil fell from the escarpment across Robert Service Way and the Millennium Trail, and then into the Yukon River on April 30.
The debris was cleaned up last week as the area remained too unstable for crews to work until then.
New trail closure
The city closed a portion of the Takhini escarpment trail – between Dieppe Street and the Softball Yukon Complex – Saturday as it builds a sewer bypass.
"There is a high probability that there will be slippage on the escarpment there," said Cabott, who added that if a slide were to occur, it could compromise a city sewer line that is directly below it.
"If there is a slide before that, we're working on a backup plan," she added.
The city said the trail will be closed until at least June 11.