NWP -- Island Mtn. tunnel signal system
Author: sp overnight
Date: 03-16-2017 - 21:39

A few months ago, Nudge asked about a signal system at Island Mountain. I just noticed
this photo on Ebay dated 1956. Behold, a signal! It appears to be functioning as a
block signal, displaying "stop".

In an old Trainorders post, Railbaron cites his January 1, 1940 NWP ETT, which says that
it was indeed an automatic block signal:

Quote:
"Railbaron"
...under Rule 509 in the ETT it does also talk about Island Mountain:

"Train movements through Tunnel No. 27 (Island Mountain) are protected by signals.
Automatic block signals must not be depended on to protect trains. When necessary,
trains must be protected by flagman."

http://i.ebayimg.com/images/g/eoEAAOSwsW9YwgEn/s-l1600.jpg
[www.ebay.com]

This next view is interesting too. The year is 1964 -- a year which should definitely
ring a bell! By December this bridge would be swept away. I also see a roll-up door on
the tunnel face, which was not present in the 1956 view. I think I read that the SP
removed this door sometime prior to the big 1978 tunnel fire.

http://i.ebayimg.com/images/g/8a4AAOSwSlBYws5A/s-l1600.jpg
[www.ebay.com]



Quote:
Re: ID for this NWP tunnel
Author: Nudge
Date: 12-04-2016 - 11:19

I remember hearing somewhere that at one time, Island Mountain tunnel had a signal system.
Anybody know if that was true? Looked like a new style relay case in one picture but that
could have been for lights or comm wiring.

Anybody?

Nudge



Subject Written By Date/Time (PST)
  NWP -- Island Mtn. tunnel signal system sp overnight 03-16-2017 - 21:39
  Re: NWP -- Island Mtn. tunnel signal system OPRRMS 03-16-2017 - 22:24
  Re: NWP -- Island Mtn. tunnel signal system Nudge 03-17-2017 - 10:16
  Re: NWP -- Island Mtn. tunnel signal system RS32 03-18-2017 - 10:39
  Re: NWP -- Island Mtn. tunnel signal system Negin 03-18-2017 - 12:59
  Re: NWP -- Island Mtn. tunnel signal system ron 03-19-2017 - 08:20
  Re: NWP -- Island Mtn. tunnel signal system ex-BN 03-19-2017 - 08:50
  Re: NWP -- Island Mtn. tunnel signal system Nudge 03-19-2017 - 11:13
  Re: NWP -- Island Mtn. tunnel signal system Lucky Strike 03-19-2017 - 12:49
  Re: NWP -- Island Mtn. tunnel signal system OTN 03-19-2017 - 18:49
  Re: NWP -- Island Mtn. tunnel signal system Kyle 03-20-2017 - 07:31
  Re: NWP -- Island Mtn. tunnel signal system OTN 03-20-2017 - 20:39
  Thanks OTN Kyle 03-21-2017 - 11:55
  Re: NWP -- Island Mtn. tunnel signal system Espee2472 03-21-2017 - 12:17
  Re: NWP -- Island Mtn. tunnel signal system SP overnight 03-20-2017 - 08:28


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