Drawings of N&W Cantilever Bridge (Signals)

[NW Modeling List]

One thing I can tell you about the one at Rawl is that it was NOT tall enough to accomodate a stack train.  That was part of the reason it was eliminated.  The decaying TC green wiring was the official reason.
 
Ben Blevins


--- On Mon, 12/8/08, NW Modeling List <nw-modeling-list at nwhs.org> wrote:

From: NW Modeling List <nw-modeling-list at nwhs.org>
Subject: Re: Drawings of N&W Cantilever Bridge (Signals)
To: "NW Modeling List" <nw-modeling-list at nwhs.org>
Date: Monday, December 8, 2008, 10:15 AM

Ben,

Thanks for the info! I guess I'll have to use photos to
"guestimate" the height and other dimensions so that I can fabricate a
model.

Seems inconceivable that I'm the only N&W modeler that needs this on
their layout!

Mark Peele
Catonsville, MD


--- On Sat, 12/6/08, NW Modeling List <nw-modeling-list at nwhs.org> wrote:


> From: NW Modeling List <nw-modeling-list at nwhs.org>

> Subject: Re: Drawings of N&W Cantilever Bridge (Signals)

> To: "NW Modeling List" <nw-modeling-list at nwhs.org>

> Date: Saturday, December 6, 2008, 10:58 AM

> The cantilever we took down at Rawl, WV on April 17th of

> this year was an identical structure to the one in the photo

> from the archives.  I wish I'd have thought to take

> some measurements of it when we had it laying on the ground.

>  

> The decking on the structure was diamond tread plate

> steel.  The uprights were constructed of C channel with a

> 12" web if I remember right.  It had steel plate

> riveted to the back of the C channel for additional

> strength.  There was X bracing riveted to hold the two

> sides of C channel together to form the upright with the

> ladder riveted on the field side of the upright.  The

> gusset was constructed out of angle iron and was bolted to

> the structure in the field when it was assembled on site. 

> The arm of the cantilever was also constructed of the same C

> channel with X bracing on the bottom, and as I mentioned

> already had a diamond tread steel deck.  It was NOT an open

> grid deck.

>  

> I've attached a photo of Rawl's cantilever, and

> Sycamore's cantilever after it had been dumped in the

> scrap yard which shows the handrail and walkway details

> better.

>  

> Ben Blevins

> 

> 

> --- On Fri, 12/5/08, NW Modeling List

> <nw-modeling-list at nwhs.org> wrote:

> 

> From: NW Modeling List <nw-modeling-list at nwhs.org>

> Subject: Re: Drawings of N&W Cantilever Bridge

> (Signals)

> To: "NW Modeling List"

> <nw-modeling-list at nwhs.org>

> Date: Friday, December 5, 2008, 7:03 PM

> 

> I don't have any N&W cantilever signal bridges but

> I do have Pennsy

> cantilever diagrams.  some are pretty close to the image

> that in the photo.  you

> might try S-432 for the decking.  A large library of Pennsy

> equipment is on

> http://prr.railfan.net/signalstandards/standards.cgi. 

> It's quite a large

> libraray to look through and by the look in the photo a lot

> of the equipment

> would tranfer nicely.

> 

> 

> 

> 

> --- On Wed, 12/3/08, NW Modeling List

> <nw-modeling-list at nwhs.org> wrote:

> 

> > From: NW Modeling List

> <nw-modeling-list at nwhs.org>

> > Subject: Drawings of N&W Cantilever Bridge

> (Signals)

> > To: "NW Modeling List"

> <nw-modeling-list at nwhs.org>

> > Date: Wednesday, December 3, 2008, 10:21 AM

> > Does anyone happen to have good drawings of the

> N&W

> > cantilever bridge? (neither of the society's

> Signal

> > booklets have this).

> > 

> > This is pretty essential for my layout. This is the

> one

> > I'm talking about:

> > 

> >

> http://spec.lib.vt.edu/imagebase/norfolksouthern/full/ns1416.jpeg

> > 

> > Thanks!

> > 

> > Mark Peele

> > Catonsville, MD

> > 

> > 

> >       

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> 

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