The Curzon CPR underpass north of Yahk will be closed overnight this weekend while construction is ongoing.
Mainroad East Kootenay officials said the project will go ahead at night from 7 p.m. on Oct 28 to 7 a.m. the following morning.
Highway 95 traffic through to the Kingsgate border crossing will not be impacted by the project.
There will be no detour in place, but access will be given to emergency vehicles only.