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Bridge guard rail ending point

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  • Member since
    June 2020
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Bridge guard rail ending point
Posted by Lastspikemike on Tuesday, March 23, 2021 8:20 AM

I have a ME double track  through girder bridge. I have ME bridge track. I have Walthers handy bridge end tracks with the insulation point already included. 

The bridge ends have regular ties implying that these were laid on solid ground, not on the bridge deck. How far from the bridge deck should these go?

While I'm at it, the ME kit seems to be missing the "timber" beams shown in the instructions as fitting along the inside of the girders guarding the girders from the track. Are these timbers supposed to have the same cross section dimensions as the ties?

Alyth Yard

Canada

  • Member since
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  • From: California - moved to North Carolina 2018
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Posted by DSchmitt on Tuesday, March 23, 2021 11:02 AM

Looking at photos the end of the guard rails can be anywhere from the end of the bridge to various distances beyond the ends

http://kettlevalleymodelrailway.blogspot.com/2016/01/bridge-details.

 

I tried to sell my two cents worth, but no one would give me a plug nickel for it.

I don't have a leg to stand on.

  • Member since
    January 2004
  • From: Canada, eh?
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Posted by doctorwayne on Tuesday, March 23, 2021 11:47 AM

Here's a photo of the guard rails on the CNR bridge over 20 Mile Creek at Jordan Station, Ontario...About 9 miles from where I live....

...a view across the bridge...

...and what's left of the original bridge, built by the Great Western Railway...

...and a view of the newer bridge as seen from the eastern abutment of the original bridge...

The newer bridge was originally double-tracked, but the second track was partially removed when CTC was installed - the remaining sections of the second track (between Niagara Falls, Ont. and Hamilton) are used as passing sidings.

Here's an aerial view of the bridge...

The M.E. guard timbers are roughly half the thickness of the bridge ties...

Wayne

  • Member since
    January 2017
  • From: Southern Florida Gulf Coast
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Posted by SeeYou190 on Tuesday, March 23, 2021 1:01 PM

All bridges are different. I have seen some guard rails long, some short, guard rails different space from the main rails, differing end angles, and so on.

-Kevin

Wink Happily modeling my STRATTON & GILLETTE RAILROAD. A Class A line located in a personal fantasy world of semi-plausible nonsense on Tuesday, August 3rd, 1954.

  • Member since
    February 2005
  • From: Vancouver Island, BC
  • 22,590 posts
Posted by selector on Tuesday, March 23, 2021 1:58 PM

This bridge, recently surfaced (close to 12 years ago now) after a wreck, is located where the CN lines cross the Thompson River at its confluence with the Fraser River at a town called Lytton, in southern British Columbia.  AFAIK, it still looks the same as this photo, taken maybe six years ago or seven, about five after it was repaired.

No inner guard rails.  Curved path, too.

Next photo, also mine, shows a bridge about 85 km upstream, still over the Thompson.  You can see that there are guards on this one, and that they terminate at a pinch-together about four-six meters out from the abutment.

Here is what I did on my second layout:

I have walked one or two rail lines in my time, usually looking for bridges.  About the most extreme extension I have seen were on the E&N Rwy on Vancouver Island.  Over the Trent River, just south of Courtenay, I seem to recall them coming to a pinch about 10 meters out.

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Posted by Lastspikemike on Thursday, March 25, 2021 9:23 AM

Thanks for all of this.

My bridge is short, the double span version. 

I'll omit the guard timbers and place the end rails just off the abutments.

The photos are great. Very useful. 

The Kettle Valley blogspot link didn't connect me to a page but I found a useful bridge detail page by searching that phrase:

 https://kettlevalleymodelrailway.blogspot.com/search?q=bridge+details

Is that the link or is there another page intended for me to connect to?

Alyth Yard

Canada

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