Martin t

I completed the scratch built stone arch brigde (viaduct). Here´s a photo from the final result:

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Photo Bud

Is There Some Reason No Video?

I've watched your you-tube video on making this and was enthralled!

Bud (aka John), The Old Curmudgeon

Fan of Northern Pacific and the Rock Island

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musgrovejb

Very Nice.

Nice Structure.  Good job on weathering!

Joe

Modeling Missouri Pacific Railroad's Central Division, Fort Smith, Arkansas

https://youtube.com/playlist?list=PLENIMVXBDQCrKbhMvsed6kBC8p40GwtxQ

 

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railandsail

  I'll have to go looking for

I'll have to go looking for that video,...unless you have a link readily available??

I intend to build a stone arch bridge as well, and likely need all the helpful hints available,...

Quote:

I moved the double mainlines out a bit more, and straightened them a bit more. As I have mentioned before those dbl-track mainlines are set onto a stone arch bridge that was located in the Balt suburbs (photos attached). That dbl track bridge is rising up to +4 inches as the tracks leave the shed to enter the helix going up to the top level. That stone bridge also provides a single track connection over to the other side of the layout as an alternative to skip the trip up the helix, and make another trip around the bottom level.

20Corner.jpg 

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So I have a nice dbl-track mainlines passing between the steel mill and the turntable/roundhouse scene. 
And I can get some halfway decent trackage in the steel mill scene. I might even be able to provide a track under one of the arches of that stone bridge (like the hopper car in that photo) for a small diesel loco to utilize in accessing those steel work cars

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David Husman dave1905

Bridge

Nice job, that's an awfully flat and thin arch for stone?  Is there a prototype for it, or is it just built to fit?

Dave Husman

Visit my website :  https://wnbranch.com/

Blog index:  Dave Husman Blog Index

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Photo Bud

Here is the Video!

OP or Joe can have me remove it if necessary.

Bud (aka John), The Old Curmudgeon

Fan of Northern Pacific and the Rock Island

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BILLYB

This was so great thanks for sharing

Thanks you for sharing this with us

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railandsail

Linoleum use, or One Arch casting at a time?

I was doing a few mock-ups recently, and it had me wondering how I was going to construct my stone arch bridge,...now longer and a few curves, and a rising elevation.

I'm thinking build it with Foamcor or Gator board, then cover it with stone decorated sheet of material,...

 

...a few ideas here...      https://model-railroad-hobbyist.com/node/33733 

Quote:

Marc

It was mentionned years and years ago in MR, John used engraved linoleum cut in form to make some of his stone viaduc.

 

Quote:

Consider casting a plaster arch and carve it to match. Then make a rubber mold of the master and re-cast as many segments as you might want or need. 

 

 

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railandsail

Thomas Stone Arch viaduct

Thomas Stone Arch viaduct near Balt

 

 

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railandsail

Thomas Viaduct

https://en.wikipedia.org/wiki/Thomas_Viaduct

Quote:

At its completion, the Thomas Viaduct was the largest railroad bridge in the United States [4] and the country's first multi-span masonry railroad bridge to be built on a curve. It remains the world's oldest multiple arched stone railroad bridge. [5] In 1964, it was designated as a National Historic Landmark.

The viaduct is now owned and operated by CSX Transportation and still in use today, making it one of the oldest railroad bridges still in service.

 

It is a duel track bridge which I need for one section of mine, then a single track for another section.

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bkivey

Concrete?

Pre-stressed concrete with stone facing?
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railandsail

More great photos of that viaduct

 

 

 

 

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railandsail

Interesting History including Engineering

https://www.asce.org/project/thomas-viaduct-railroad-bridge/

 

Quote:

Today the bridge carries 200 ton diesel locomotives and heavy freight traffic on a daily basis. The Thomas Viaduct has been in service, without interruption, since the day that it was opened in 1835.  It survived the great flood of 1868 as well as Hurricane Agnes in 1972, two floods that wiped out the Patapsco Valley and destroyed nearly everything in their path.
http://thomas-viaduct-relay-maryland.blogspot.com/

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railandsail

Two Steamers

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railandsail

Arch Shape

I need to remember this for my little mockup I hope to do tomorrow.
 

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Russ Bellinis

Brian, none of your pics are showing up.

All I see are black squares with a white "x" in the middle.

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railandsail

Confused about several photos

Most of what I looked up just this evening were double track viaduct. Yet somehow I found what appears to be some single track versions/sections that I posted earlier in this subject thread...??
%20ps600.jpg 

 

%20ps600.jpg 

And these were not over the river?.....and were slightly different in construction??

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railandsail

Photos not showing up?

That's strange, I see them just fine. I used the 'copy image location' url then paste that into the url box offered when you click on the image icon in the tool selection group above??

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Russ Bellinis

Interesting!

When I looked a couple of minutes ago, I only saw black boxes with white "x" in the center.  I just looked again and found the pics good!

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Steves VR

Hijacked...

Brian, I'm thinking you should move discussion of YOUR arch bridge to your own blog, this is Martin's blog about his arch bridge, you've hijacked his thread. I don't want to read about your bridge here. Regards, Steve.
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railandsail

Hi Jacked Subject Thread

I wrote Martin this private message a few moments ago,...

Quote:

I was just recently accused of hi-jacking your subject thread on stone arch bridge construction. Please excuse me if you feel this way, ....I had not taken notice that it was a blog and not a subject thread. I will move it if you have any problems with it.

BTW, you only ever made one initial posting, then never posted a link to that video you mentioned??

 

I have no problem with moving the subject material. I just have a feeling that some subject threads on this forum (and others) just past into obscurity if they don't receive additional discussion. Since his making of his viaduct might be VERY SIMILAR to what I might want to use, I thought it was applicable. 

(BTW its ONLY been 5 months since this discussion was originally posted)

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Ken Rice

It's his blog

Quote:

I just have a feeling that some subject threads on this forum (and others) just past into obscurity if they don't receive additional discussion.

It's not just any old thread, it's part of his blog.  You can see that at the top where it says "Home / Blogs / Martin t's blog / The stone arch bridge completed!"

I think it would be better to start a new thread for your bridge discussion.

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Martin t

Nice viaduct photos

Hi!

Thank you for posting the nice photos of different viaducts and stone arch bridges!
Yeah, I have browsed tons of old photos of viaducts ahead of building my bridge. I wanted to push the bounderies as far as possible towards an awesome and slightly unrealistic look, but still keeping the basic elements and proportions intact, to maintain a realistic apperance for the "normal viewers eye" (maybe not viaduct design engineers).

It´s good that conversation continues in my posts. I must accidently have turned off notifications for this post, since I can not recall getting any message about new comments. Sorry for that!

 

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railandsail

Hi Martin, & notifications about new replies

Hi Martin,
Sorry for hi-jacking your blog,...guess I just didn't take careful notice that it was your blog, and not just a 'topic discussion'. Quite often I go 'searching' for a subject thread in history before I just blurpt out with a new one on the same subject.

I don't think you 'turned off notifications'. Its one item I don't care for with this forum,...its not an option here.
I also like to get notification about someone replying to a subject I have shown interest in and made a posting.

Did you find that video you mentioned in the opening posting?

Perhaps it would be better if I open up my own subject thread as I believe this project of mine is going to get somewhat 'involved'.

regards

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railandsail

Martin's video

Wow, Martin I just saw your video on the making of your stone arch bridge,...LOTS of hand labor, carving etc.
I commend your work!

I think I am going to have to find another method,..perhaps some sort of plaster mold that would allow for repeatability down the line.

I truly am sorry to have intruded on your blog the way I did. I had no idea that this was how things worked.

PS: I now recall watching your toilet paper water video at some point in the past,...unique. I may have to watch it again when I get around to touching up my waterfront scene.

You have LOTS of good videos, and a very sunny disposition in presenting them,...cheers.

 

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