Author Topic: Trout Brook Bridge - Official Work Thread  (Read 259502 times)

Bill Baskerville

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Re: Trout Brook Bridge - Official Work Thread
« Reply #270 on: December 10, 2017, 11:03:35 AM »
But Ed,

We were beginning to have so much fun with this dilemma.
~ B2 ~ Wascally Wabbit & Gofer ~

John Kokas

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Re: Trout Brook Bridge - Official Work Thread
« Reply #271 on: December 10, 2017, 11:18:12 AM »
I can help the braking situation, I know where I can acquire some used drag chutes from the USAF.  Good up to 250 knots!   ;D
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Bob Holmes

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Re: Trout Brook Bridge - Official Work Thread
« Reply #272 on: December 10, 2017, 06:50:17 PM »
Back to my question which I phrased poorly.  Which part of the bridge sets directly on the abutment:  is it the ends of the side trusses?  Are the bottom cross pieces below the level of the abutment, and do they then have the tracks mounted to them?

Or is it something else I cannot picture?

Thanks...

Mike Fox

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Re: Trout Brook Bridge - Official Work Thread
« Reply #273 on: December 10, 2017, 07:25:21 PM »
Bob,
The ends of the trusses are over the abuttments. There will be some smaller floor timbers they will sit on
Mike
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Dwight Winkley

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Re: Trout Brook Bridge - Official Work Thread
« Reply #274 on: December 10, 2017, 10:11:46 PM »
Bob, The cross beams are bolted below the truss. When you look at a side view of the bridge you will see the cross beams are not located near the ends. That part of the bridge will be located over the abutments

On top of the cross beams are 3 sets of cross timbers, in the shape of a "X".

4 stringers are than put on the cross beams. A lot of cutting has to be done to fit the stingers over the cross timbers.

The 10 foot ties are than lied on the stringers

dwight
« Last Edit: December 11, 2017, 10:39:15 PM by Dwight Winkley »

Brendan Barry

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Re: Trout Brook Bridge - Official Work Thread
« Reply #275 on: December 11, 2017, 11:30:06 AM »



United Timber Bridge Workers, Local 1894, Alna, ME

Mike Fox

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Re: Trout Brook Bridge - Official Work Thread
« Reply #276 on: December 11, 2017, 06:34:03 PM »
The DEP permit has now been submitted.
Mike
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Ed Lecuyer

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Re: Trout Brook Bridge - Official Work Thread
« Reply #277 on: December 15, 2017, 11:26:46 AM »
We got another mention in Trains Newswire. You do need to be a Trains subscriber to read it:
http://trn.trains.com/news/news-wire/2017/12/14-truss-bridge-arrives-at-maine-two-foot-museum
Ed Lecuyer
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Russ Nelson

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Re: Trout Brook Bridge - Official Work Thread
« Reply #278 on: December 17, 2017, 03:27:18 PM »
Engineering drawings explain all to this engineer, thanks.

Dwight Winkley

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Re: Trout Brook Bridge - Official Work Thread
« Reply #279 on: December 17, 2017, 09:47:21 PM »
Last Friday, Dec. 15th. A trailer load of 8 inch wide shiplap cut siding boards arrived at the museum.
The back sides will be treated with a fire retardant before they are installed on the trusses. The front of the boards will be fire retardant treated after they are installed on the trusses.

Mike Fox

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Re: Trout Brook Bridge - Official Work Thread
« Reply #280 on: December 19, 2017, 12:19:44 PM »
The DEP permit for the bridge site has been approved. Work will start after the beginning of the year for tree removal. We need to be careful about how we cut, so we just can't whack all the trees down. I have a way that should be easy, and keep the possibility of ground disturbance low.
Mike
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Roger Cole

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Re: Trout Brook Bridge - Official Work Thread
« Reply #281 on: December 19, 2017, 02:45:51 PM »
Once the shiplap siding is applied, does that make the bridge officially "completed" to satisfy the agreement?
« Last Edit: December 19, 2017, 04:14:45 PM by Roger Cole »

Bob Holmes

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Re: Trout Brook Bridge - Official Work Thread
« Reply #282 on: December 19, 2017, 07:50:20 PM »
Or do the cross brasses, stringer and ties also have to be completed?

Mike Fox

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Re: Trout Brook Bridge - Official Work Thread
« Reply #283 on: December 19, 2017, 08:43:05 PM »
Cross bracing has been cut. That is part of his contract. Shiplap is also part of it, and is now waiting installation. Tim expects the shiplap to go up quickly. Outside boards will be nailed, while inside will be screwed, so part can be removed for inspection.
Mike
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Paul Uhland

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Re: Trout Brook Bridge - Official Work Thread
« Reply #284 on: December 20, 2017, 01:30:40 AM »
As I understand it, the four deck longitudinals, four wide diagonal brace assemblies and all sheathing installed will complete the contract.
The short connecting spans, abutments, trackwork are WW&F's responsibility.

Maybe snow will be light this winter and melt fast.  ;) Here in NM we're about 70 rainless days into our latest drought, scant mountain snow, ski areas hurting.
 
How about selling removed trees as firewood along 218?  ;D
« Last Edit: December 20, 2017, 01:43:25 AM by Paul Uhland »
Paul Uhland