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Western Railroad Discussion > Signal Sunday: Fresno, CA

Date: 01/19/14 14:25
Signal Sunday: Fresno, CA
Author: Ritzville

Old fashioned scene on the BNSF (old Santa Fe)mainline in Fresno on June 26, 2012. I love the old fashioned pole line. Their days were numbered as new signals were under construction. I miss the older signals and pole line.



Edited 1 time(s). Last edit at 01/19/14 18:58 by Ritzville.


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Date: 01/19/14 19:26
Re: Signal Sunday: Fresno, CA
Author: 567Chant

I must admit, there is a certain poetry to those cantilevers.
...Lorenzo

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Date: 01/19/14 22:39
Re: Signal Sunday: Fresno, CA
Author: JimBaker

That's a first for me, the signal post on the short cantilever.

--Jim Baker

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Date: 01/19/14 23:10
Re: Signal Sunday: Fresno, CA
Author: wpdude

And all gone now...

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Date: 01/20/14 00:18
Re: Signal Sunday: Fresno, CA
Author: coach

It's funny how overbuilt those new cantilever bridges are. Huge compared to the old ones that worked well for so long. Can't be cheap.

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Date: 01/20/14 10:44
Re: Signal Sunday: Fresno, CA
Author: steve_misky

the new signal bridge will likely have a much longer overhang and thus require more support, especially with one (or two) signal maintainers up there working, plus add in earthquake factor of safety.

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Date: 01/20/14 18:23
Re: Signal Sunday: Fresno, CA
Author: 567Chant

steve_misky Wrote:
-------------------------------------------------------
> the new signal bridge... ...plus add in earthquake factor of safety.

That, and aluminum is intrinsically less rigid than steel, hence the larger column with its bracing.
...Lorenzo

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