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Bridge maintenance walkways

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  • Member since
    May 2017
  • 53 posts
Bridge maintenance walkways
Posted by Capt.Brigg on Saturday, November 21, 2020 7:06 PM

I am building a 170' in HO, single track bridge on the gate into my HO layout. I would like to have a maintenance walkway along beside the rails. See the bridge on my web page (link below). I have searched for bridge walkway kits with no luck and am now planning to make the walkway with plastic strips and wire handrails. Any construction suggestion with pictures, parts and ideas will be greatly appreciated.

Capt. Brigg; Pacific Cascade Railway

  • Member since
    July 2006
  • From: 4610 Metre's North of the Fortyninth on the left coast of Canada
  • 7,071 posts
Posted by BATMAN on Saturday, November 21, 2020 8:03 PM

 

 

 

 

 

Brent

It's not the age honey, it's the mileage.

  • Member since
    March 2017
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Posted by Track fiddler on Saturday, November 21, 2020 8:10 PM

They added them to my old Trestle where I grew up in my childhood.  I can't tell you the countless hours we all spent around her.

Since I moved back to the city from the Kabetogama State Forest so many years ago.  I go visit her every spring.  The tar bike path used to be a dirt one made by us Kids back then.

Sorry Captain,  I don't have any specs on these Bridge walkways you are searching for.  Hopefully someone else does.

 

 

TF

  • Member since
    May 2010
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Posted by mbinsewi on Sunday, November 22, 2020 8:20 AM

Great pictures Brent and TF.  Should be easy enough to figure out from there.

For the walkway grating, I think I'd use Plane #201.

http://www.planomodelproducts.com/201.html

Mike.

  • Member since
    August 2003
  • From: Collinwood, Ohio, USA
  • 11,121 posts
Posted by gmpullman on Sunday, November 22, 2020 8:43 AM

mbinsewi
For the walkway grating, I think I'd use Plane #201.

Tichy makes a nice product in styrene, too.

https://www.tichytraingroup.com/Shop/tabid/91/p/8001-open-grate-platform/Default.aspx

Cheers, Ed

  • Member since
    May 2010
  • 7,182 posts
Posted by mbinsewi on Sunday, November 22, 2020 3:49 PM

Those would work great Ed, even has the hanrails.

Mike.

  • Member since
    September 2003
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Posted by Overmod on Sunday, November 22, 2020 9:07 PM

A part of this involves how the deck of that bridge is structured. If the tie ends can be exposed, or there is only a slight flange at the ends, you can use periodic switch ties, as if building for third rail, and carry the walkway flooring and railing-stanchion bases on them.  Adze their undersides and then coat the cuts with creosote if needed to fit.

Width is 'whatever your switch tie length permits' and railing height is probably about 4', adequate height that a slip while toting something won't flip a worker over it or slide under it -- this is why at least one additional lower rail is provided.  Alternate the direction of the long ties to have a walkway both sides.  If in 'dry' weather or with steam locomotives, consider putting water barrels every so often to deal with tie fires...

Older walkways were wood boards, with ends probably butted over tie centers and spiked.  Expanded metal drains better, will not rot unexpectedly, and gives much better traction in wet or icy weather, but will have to be watched for rust or periodically painted (perhaps when the steel trusses are inspected).

You could use brackets from the truss structure to hold the walkway entirely free from the track structure, but that would likely be more expensive (and harder to implement) in real life.

The bridge pictured uses a variant of this construction but has a curious way of attaching the railing to the tie extensions.  I think I'd have used sockets in the top rather than brackets cross-screwed toward the bottom; there is probably some shear relief I don't know about in there.

  • Member since
    May 2017
  • 53 posts
Posted by Capt.Brigg on Tuesday, November 24, 2020 4:36 PM

Just watched "The Hills Line with James McNab, Episone 7 Scenery Secrets,on MRV plus, and saw two great long handrails on his bridges. Does anyone know what kits or supplies he used to build these walkways & handrails? Capt. Brigg

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