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Improving Donner tunnel clearances
Author: d
Date: 01-16-2011 - 17:27

From observations, what portion of the double-stack clearance additions were accomplished by drilling and grouting behind the existing concrete, then notching the existing concrete to provide clearances for the higher double stacked cans?

This method is common. It is interesting to watch; both while being performed and later in service. Not much clearance; but it works. Just inside such tunnels are notices ordering that track repair and/or modifications must have permission the track maintenance engineer's office staff.

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Subject Written By Date/Time (PST)
  Filleted Stack Train Tom McCann 01-13-2011 - 22:22
  Re: Filleted Stack Train jesse 01-13-2011 - 22:47
  Re: Filleted Stack Train jesse 01-13-2011 - 22:49
  Re: Filleted Stack Train Tom McCann 01-15-2011 - 09:07
  Re: Filleted Stack Train CaliforniaSteam 01-14-2011 - 00:40
  Re: Filleted Stack Train George Andrews 01-14-2011 - 07:37
  Re: Filleted Stack Train theconductor 01-14-2011 - 13:41
  Re: Filleted Stack Train jesse 01-14-2011 - 16:32
  Re: Filleted Stack Train George Andrews 01-14-2011 - 17:28
  Re: Filleted Stack Train theconductor 01-14-2011 - 20:39
  Re: Filleted Stack Train Tom McCann 01-15-2011 - 09:05
  Re: Filleted Stack Train Q 01-16-2011 - 16:47
  Improving Donner tunnel clearances d 01-16-2011 - 17:27
  Re: Filleted Stack Train Dick Dorn 01-17-2011 - 08:30
  Re: Filleted Stack Train David Maxwell 01-17-2011 - 11:28
  Re: Filleted Stack Train Graham Buxton 01-17-2011 - 12:58
  Re: Filleted Stack Train David Maxwell 01-17-2011 - 13:18


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