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Multiple kit bridges

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  • Member since
    July 2004
  • From: Carmichael, CA
  • 8,055 posts
Posted by twhite on Monday, December 14, 2009 12:26 PM

Some great bridges here! 

Wayne: I've admired your bridges for years!  Bow   It was great to see the close-up shots of those viaducts!

Garry:  I love that Mrs. Hippy bridge. 

Well, here's my multiple-kit bridge, the Deer Creek viaduct in the Sierra Nevada.  It's made of two ME Tall Viaduct kits constructed on a 36" radius curve and 2% grade. 

Pardon the unfinished scenery. Blush

Tom Smile

  • Member since
    February 2005
  • From: Vancouver Island, BC
  • 23,330 posts
Posted by selector on Monday, December 14, 2009 11:37 AM

Great work, Guys!   This is really a showcase thread showing really top notch work! 

I'm jealous...

  • Member since
    March 2007
  • From: On the Banks of the Great Choptank
  • 2,916 posts
Posted by wm3798 on Monday, December 14, 2009 8:26 AM

 

A Walthers double track through truss with Micro Engineering plate Girder decks.  Piers are scratch built from sheet styrene.

Lee

Route of the Alpha Jets  www.wmrywesternlines.net

  • Member since
    December 2004
  • From: Bedford, MA, USA
  • 21,481 posts
Posted by MisterBeasley on Monday, December 14, 2009 7:31 AM

This is an Atlas chord bridge.  It's no longer in production, but they'v replaced it with a different 18-inch bridge.

Earlier in construction, it looked like this:

 

It takes an iron man to play with a toy iron horse. 

  • Member since
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  • From: Canada, eh?
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Posted by doctorwayne on Monday, December 14, 2009 1:06 AM

Thank you both for the kind words. Smile

Garry, that's not only a good-looking bridge, but I also like the scene around it, and the piers are very well done, too.  I see that you've also included the telegraph arms, something I've yet to do on my Maitland River bridge.

Danny, the "water" is Durabond patching plaster, applied over a plywood river bottom.  It's about 1/8" thick, I think, with the ripples and white water effects added with a drywall knife just before the plaster set.  I brush painted it with latex house paint, then applied three coats of high gloss water-based clear urethane, also applied with a brush.  There's no "creep" up the river bank or piers, and the hard plaster and tough finish stand up to my habit of placing the camera atop the "water" for photos, and, of course, the occasional cleaning with my shop-vac.

Wayne

 

  • Member since
    January 2007
  • From: Kentucky
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Posted by Heartland Division CB&Q on Sunday, December 13, 2009 11:46 PM

Wayne ... Your bridges are truly outstanding !!.

tbdnny ... This is my bridge over the "Mrs. Hippy River" in HO.

It is double track. Each end has two Atlas single track bridges side-by-side. There are two Walthers double track bridges. The combine length is four feet. The piers and abutments are made from 1/4" plywood. It has homemade wood ties and hand-laid rail.

GARRY

HEARTLAND DIVISION, CB&Q RR

EVERYWHERE LOST; WE HUSTLE OUR CABOOSE FOR YOU

  • Member since
    June 2009
  • From: QLD, Australia
  • 1,111 posts
Posted by tbdanny on Sunday, December 13, 2009 11:13 PM

Wayne,

I can't go away from this post without saying that those bridges look awesome!  That might be enough to get me started on my own bridge project.  What did you use for the water?

Thanks in advance,

tbdanny

The Location: Forests of the Pacific Northwest, Oregon
The Year: 1948
The Scale: On30
The Blog: http://bvlcorr.tumblr.com

  • Member since
    January 2004
  • From: Canada, eh?
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Posted by doctorwayne on Sunday, December 13, 2009 10:59 PM

A few photos that have been shown here before.  The first three are of the same two bridges, as viewed from different angles.  The taller bridge in the rear is a combination of Micro Engineering parts, while the lower bridge, as seen in the second photo, is composed of, from left to right, an M.E. 50' deck girder, an M.E. 30' deck girder, two Atlas deck trusses, and the sides from an Atlas through girder, cut from the floor and rebuilt as a deck girder.  The piers and abutments were cast in patching plaster:


The next three photos of are another bridge, again from different angles.  The two deck truss spans are from Atlas, with the towers and girders by Micro Engineering.  Abutments and piers are built-up from .060" sheet styrene:

This one appears to be a two-span bridge:


...but viewed from above, a third span is revealed:


In the last photo above, the short girder is from Micro Engineering, while the two deck trusses are again from Atlas.  The piers and abutments are cast plaster.

The last bridge is comprised of five spans across the Maitland River:

Starting from the west bank of the river, there's an M.E. 30' girder (hidden in the bushes) and an M.E. 50' girder...

...followed by an Atlas through girder modified into a deck girder, and a Central Valley through truss...

...and ending in another modified Atlas girder bridge...

Piers and abutments for this bridge were cast in patching plaster, and all bridges shown here are removeable as complete units, with their piers and abutments remaining on the layout.

I hope these photos offer a little bit of inspiration to get you started. Smile,Wink, & Grin

Wayne

 

 

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Posted by Allegheny2-6-6-6 on Sunday, December 13, 2009 8:56 PM

 If your referring to the pre-built Atlas truss bridges do yourself a favor and start by throwing them in the garbage.They are best suited for going around the Christmas tree. If your talking about the 18" long kit bridge they have thats a nice bridge and will look good for what your planning.

I am currently building in my work shop a similar module but it has a Walthers Double track through truss bridge with a Central Valley double track plate girder bridge on both ends of the truss bridge.

Let me educate you on bridge shoes ad Chooch piers. They are not a perfect match up.Then again neither are Walthers bridge piers or anyone other manufactures.  So just as with the prototype you will have to shim the bottom of the bridge shoe with something like sheet styrene. I am currently in the mock up stage but have all my 3/4" birch plywood pieces cut and ready to start on tomorrow. what I have in mind is a 3/4" plywood base with 3/4" plywood end. If you measure the bridge pier and compare it to the abutment you will find that the abutment (which you should only need one pier in the middle) is 1/4" shorter then the pier, the pier will need to be mounted higher on the plywood end walls so the two abutments and the center pier are all the same heightwise. Then once your bridges are built and ready to be installed is when you'll need to shim under the bridge shoes to get them to the exact same track height

I'm finding out it's not as simple as it looks and requires a litle planning and engineering but the end result should look great.

Just my 2 cents worth, I spent the rest on trains. If you choked a Smurf what color would he turn?
  • Member since
    February 2007
  • From: East central Missouri
  • 1,065 posts
Multiple kit bridges
Posted by Santa Fe all the way! on Sunday, December 13, 2009 1:23 AM

I've gathered two of the Atlas truss bridges and some Chooch piers and bridge abbutments. My idea is to add the two and maybe three of the kits together for one long bridge. I've been putting this project off for a while and I need some inspiration to get me off my butt. Please, if you have a multi span bridge, please post some pictures.

Come on CMW, make a '41-'46 Chevy school bus!

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