(Photo courtesy of Parks Canada)
On Monday, two workers were working at the rock-scaling site, 16 kilometers west of Field, B.C. drilling holes to place explosives when rocks started to crash down.
The workers were transported to the hospital with no life threatening conditions.
The highway is closed in both directions since then but it is expected to re-open one section of the road on Thursday.
Officials at Parks Canada says around 10,000 cubic meters of rock fell in the slide.
It could be months before the highway will get back to normal. The damage may not be fully repaired until spring.
For drivers, going to B.C. there is a detour in effect on Highway 93 South to Radium Hot Springs, then head north on Highway 95 to Golden to rejoin the Trans-Canada Highway west of the closure.
The detour might take an hour and a half.