Water levels rising now after months of drilling and blasting at the Big Bar site north of Lillooet
They are trying to remove big boulders blocking fish passage before the high water of spring freshet
Pressure has been on senior governments working with First Nations to remove blockage for months
Christine Nielsen, her husband and two kids drove up only a couple of hours before the road washout
Route closed early Tuesday morning, will open again Wednesday morning
The storm total of almost 85 mm in Chilliwack included a record rainfall on Jan. 31
More than 50 vehicles escorted down mountain
Resort says all activity has come to a halt until road crews can assess the extent of the slide
