By the time they open the road back up late April there is as much as 17 meters (2012) of accumulated snow in places, depending on winds,...
Recently it is more around a shy 13 meters though... Global warming...
The cost of removing the snow is around 1M$ per year.
By the way, the whole area is totally closed between late Nivember and April with typical night temps around -15 to -20C, strong winds and... Near constant snow falls. I have been there a few times in Nov and May, very nice place to be if you have basic winter skills.
A 300 megapixels pano of the place I shot late Nov a few years back.