Drivers on Highway 1 can expect more delays and detours as an extended closure on the 4.8-kilometre construction zone will be in effect from April 19 to May 24.
A detour will be in place through Kootenay National Park to Radium Hot Springs and north to Golden via Highway 95.
During the May long weekend, the canyon will fully re-open except for intermittent closures overnight.
Crews said these interruptions may range from 20-minute stoppages to eight-hour closures.
Advance notice of longer closures will be given.
