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Re: Engineering question- Alpine Tunnel

April 17, 2017 06:12PM
I retired from the MNA RR in SW Missouri which has several tunnels, all wet. All on grade and all wet with water flowing one end to the other. The wettest being the tunnel called Cricket under Omaha, Arkansas. When there is rain the water literally shoots out of the sandstone walls and washes the train (and crew!). Deflector shields actually are used to deflect some of the water downwards. The other major problem tunnel is Reed Springs (RR siding name or Reed's Spring, town name) where the apex is 1/2 mile west of the west end. Poor drainage from a nearby highway sends waterfalls down the entrance cliffs and through the tunnel for most of the rainy season. And yes, the water gives the section fits in rainy season but traffic is not shut down until the rail is under water. I also should say there are 4" thick slabs of sandstone that spauld out of the ceilings occasionally and are laying on the track. JP



Edited 1 time(s). Last edit at 04/18/2017 01:17PM by jim pallow.
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Engineering question- Alpine Tunnel

John K April 16, 2017 05:29AM

Re: Engineering question- Alpine Tunnel

hogger42 April 16, 2017 05:56AM

Re: Engineering question- Alpine Tunnel

edm3rd April 16, 2017 06:27AM

Re: Engineering question- Alpine Tunnel

John K April 16, 2017 07:03AM

Re: Engineering question- Alpine Tunnel

Rich Muth April 16, 2017 07:11AM

Re: Engineering question- Alpine Tunnel

John K April 16, 2017 08:30AM

Re: Engineering question- Alpine Tunnel

dougvv April 16, 2017 12:23PM

Re: Engineering question- from MCPoor & EJHaley

RDannemann April 17, 2017 11:52AM

Re: Engineering question- Alpine Tunnel

nickgully April 16, 2017 08:17AM

Re: Engineering question- Alpine Tunnel

Mark Petersen April 16, 2017 08:52AM

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rdamurphy April 16, 2017 10:01AM

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Kelly Anderson April 16, 2017 12:00PM

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CharlieMcCandless April 16, 2017 04:48PM

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Chris Walker April 16, 2017 06:05PM

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nedsn3 April 16, 2017 08:36PM

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christensenge April 17, 2017 10:45AM

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Earl April 17, 2017 07:07PM

Re: Engineering question- Alpine Tunnel

Chris Walker April 17, 2017 10:15PM

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rdamurphy April 20, 2017 08:36PM

Re: Engineering question- Alpine Tunnel

jim pallow April 17, 2017 06:12PM

Re: Engineering question- Alpine Tunnel

Earl April 17, 2017 11:00PM

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Chris Walker April 18, 2017 01:26AM

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Kelly Anderson April 18, 2017 05:32AM

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weston1879 April 18, 2017 05:46AM

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Earl April 20, 2017 11:15PM

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kbarnett April 21, 2017 03:36AM



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