Author Topic: Sheepscot Turntable - Official Work Thread  (Read 334813 times)

Brendan Barry

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Re: Sheepscot Turntable - Official Work Thread
« Reply #150 on: July 14, 2016, 11:22:59 PM »
More excavation pictures from Thursday 7/14.



















United Timber Bridge Workers, Local 1894, Alna, ME

Mike Fox

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Re: Sheepscot Turntable - Official Work Thread
« Reply #151 on: July 15, 2016, 06:16:48 AM »
Any plans on putting something on the stone to prevent the cement from seeping into it?
Mike
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Bill Baskerville

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Re: Sheepscot Turntable - Official Work Thread
« Reply #152 on: July 15, 2016, 07:21:40 AM »
On my foundation projects in Virginia the concrete is poured directly onto the stone (gravel in Virginia).

I am curious, why are there three spiders of steel to the three roundhouse tracks, but not one to the lead track from the south yard?

Bill
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Harold Downey

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Re: Sheepscot Turntable - Official Work Thread
« Reply #153 on: July 15, 2016, 08:39:55 AM »
The three "spiders" (actualy beams) merely connect the full arc of the outer ring foundation to the center pedestal; one at each end and one in the middle.  The span of the arc is about 90 degrees and accommodates three roundhouse tracks plus the lead track from the yard.

Philip Marshall

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Re: Sheepscot Turntable - Official Work Thread
« Reply #154 on: July 15, 2016, 01:57:21 PM »
The drawing of the spider reminded me that I've been told the current SR&RL turntable at the Old Stone Fort in Phillips incorporates the spider from the original P&R turntable, which was another Portland Company product of similar if not identical design to the one we're building. (The original Old Stone Fort turntable was never actually scrapped but was just left to rot away in situ, and I've seen pictures suggesting the wood was still partially intact as recently as the 1970s.) If this information is correct then I wonder if it might be worth going up to Phillips to examine the spider, as it's likely the only surviving example of its type.

Bill Sample

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Re: Sheepscot Turntable - Official Work Thread
« Reply #155 on: July 17, 2016, 07:58:27 AM »
Looks like a dry summer at Sheepscot so far - let's hope that continues for the sake of the turntable pit crew.  (having memories of working on the carbarn during mud season!)

Ira Schreiber

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Re: Sheepscot Turntable - Official Work Thread
« Reply #156 on: July 17, 2016, 09:59:00 AM »
Please do not mention mud and the carbarn in the same sentence.
It was one of my most embarrassing moments.

Eric Larsen

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Re: Sheepscot Turntable - Official Work Thread
« Reply #157 on: July 17, 2016, 03:18:30 PM »
Looks like Mulligan's steam shovel to me.   ;D

John Kokas

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Re: Sheepscot Turntable - Official Work Thread
« Reply #158 on: July 17, 2016, 05:17:41 PM »
Eric, the same thought went through went through my head.  Loved that book when I was a kid.
Moxie Bootlegger

Pete "Cosmo" Barrington

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Re: Sheepscot Turntable - Official Work Thread
« Reply #159 on: July 17, 2016, 07:21:03 PM »
Oh, me too!  ;D

Mike Fox

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Re: Sheepscot Turntable - Official Work Thread
« Reply #160 on: July 17, 2016, 08:00:44 PM »
Sump pump was working this morning after our shower. Water from the shop roof drains into the pit, then the sump pump lifts it out. Pictures do nothing as to how impressive the hole is in person.
Mike
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Brendan Barry

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Re: Sheepscot Turntable - Official Work Thread
« Reply #161 on: July 18, 2016, 08:23:08 PM »
The rebar cage for the center bearing was placed in the hole today and work was started on assembling the rest of the rebar. Once all the rebar is in we can put the forms up for the footers and start pouring concrete.





Checking that center bearing rebar cage is the right place.



Starting on the rest of the rebar.





United Timber Bridge Workers, Local 1894, Alna, ME

Dave Crow

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Re: Sheepscot Turntable - Official Work Thread
« Reply #162 on: July 19, 2016, 07:12:06 AM »
Great progress!  When and where will the drainage pipes be placed?

Greg Klein

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Re: Sheepscot Turntable - Official Work Thread
« Reply #163 on: July 20, 2016, 08:39:20 AM »
This is some fantastic stuff!  Hope to make it up soon!

Win Nowell

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Re: Sheepscot Turntable - Official Work Thread
« Reply #164 on: July 20, 2016, 10:33:31 AM »
I am confused. Is this not going to be a 360 degree turntable? Is there going to be loop track somewhere to turn the equipment? I never gave it much thought but I guess they had no way of turning equipment at Wiscassett or did they? A wye somewhere?

Win Nowell