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Winter avalanches ?

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  • Member since
    February 2005
  • From: Southwest US
  • 12,914 posts
Posted by tomikawaTT on Monday, December 12, 2016 1:27 PM

Mountain railroads in deep snow country are susceptable to avalanches.  All those miles of snowshed on the original Central Pacific Sierra Crossing weren't built to subsidize the timber interests.

The problem with clearing avalanches is that, in addition to snow packed to the consistency of concrete, they frequently contain full-grown trees and boulders the size of SUVs.  More than one rotary broke its fan trying to eat a tree.

Where avalanches can be a problem, preemptive action (with artillery, or blasting charges delivered by helicopter) can be taken to trigger the slide at a time when equipment has been pre-dispatched and interference with rail traffic will be minimized.  IIRC, Railroading in Alaska had part of an episode featuring a 57mm recoilless rifle popping cornices above the tracks.

On my favorite Japanese rail route there are massive concrete slide deflector roof structures in line with the usual avalanche spots.  The maglev, which is planned to roughly follow the same route, will pass through in a continuous tunnel.

Chuck

  • Member since
    June 2001
  • From: US
  • 13,488 posts
Posted by Mookie on Monday, December 12, 2016 1:18 PM

I bet Sir Chicken wears a helmet year 'round....Gets a little nasty next door....

She who has no signature! cinscocom-tmw

  • Member since
    May 2004
  • 4,115 posts
Posted by tatans on Monday, December 12, 2016 12:53 PM

Tell the guys  in Fargo N.D. they don't have too much to worry about, the mountains around there aren't all that high.

  • Member since
    December 2008
  • From: Toronto, Canada
  • 2,560 posts
Posted by 54light15 on Monday, December 12, 2016 10:26 AM

It's them summer avalanches you got to watch out for. 

  • Member since
    December 2007
  • From: Georgia USA SW of Atlanta
  • 11,919 posts
Winter avalanches ?
Posted by blue streak 1 on Sunday, December 11, 2016 7:07 PM

As usual the weather guessers ( alarmists ) are predicting avalanches from this storm.  So if in the unlikely time one should hit a RR be on the lookout.

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