Washington combats avalanches with heavy artillery

Washington combats avalanches with heavy artillery »Play Video

SEATTLE - A 60-ton weapon mounted on the top of a mountain at Snoqualmie Pass is in place - ready to blow away unstable snow pack that could threaten travelers on Interstate 90.

The M-60 tank, on lease from the military, is the latest addition to the avalanche control arsenal at Snoqualmie Pass.

The method is effective and time-saving. What used to take two hours will now take just a half hour, which means much shorter delays for drivers who get stuck on I-90 during avalanche control work.

So far crews haven't had to use the tank this year but they're ready. At Stevens Pass, tanks have been used for years for avalanche control. Here's a YouTube video showing them rolling in: