I know this is completely irrelevant to a skier-triggered avalanche inbounds within a ski area ...
but now I'm really curious about any event in recent history that actually shut down Highway 50 for 3 entire days - natural or artificially triggered - and I am being really unsuccessful with the right Google parameters. The only thing I could find was the huge landslide in April 1983, which does not sound anything like what m85a53 is talking about.