BRIDGES...let's see the bridges on your layout...and some real ones too, for reference....

As always really neat stuff guys. Really enjoy it!

This display is a project in progress. Please limit remarks to acclamation or suggestions for scenic details.

Details of bridges and supporting structures are well researched and documented. Scene is designed to depict a river crossing by a Front Range short line that replaced a trestle used by the preceding narrow gauge railroad. The east end was washed out by a flood during WWII and wartime restrictions dictated use of available materials rather than new construction. The plate girder bridge was used to span the new channel formed by the flood. It was salvaged from a class 1 road and the trestle approach repaired. A pile pier was used on the east end for speed and economy.

Bridge deck structures and trestle follow D&RGW standards. Guard rails are fully spiked as per D&RGW standards.

The cut on the west end is narrow by Standard gauge standards, but it was excavated by a narrow gauge railroad and with no demand for oversize clearances, it was never widened. Short lines are notable for their economics.

The display breaks down into two five foot modules after the through truss is removed. The modules and legs weight appox 50#.
The structure will support a 200# load without damage.

Project progress photos can be viewed on the Colorado o Scale Modelers web site: www.coloradooscale.org

Under construction are new end curve modules of 76” radius to allow smoother operation of larger equipment. The original curves are appox. 54” radius with easements. These were an experiment to test the lightweight (less than 20# per module) construction. After 10 years and over thirty public displays the design has proven itself.

Conceptual drawings 

a cool cement train bridge on a TV show I watched last night......

              my Mom took these pictures in Northwood,Ohio......

    my Mom sent me these while she was doing some rail fanning........

          at Stanley Yard......

RED LINE Draw Bridge- NJ Hirailers

PAUL ROMANO posted:

RED LINE Draw Bridge- NJ Hirailers

Wow!

Great Northern railway trestles over Chumstick and Tumwater canyon.

Video of GN P-2 mountain crossing trestle over Chumstick canyon.

https://www.youtube.com/watch?v=ujdVUF1STZI&t=46s

I have always like this one in Pittsburgh on Anderson St.

Looks like a bridge from this angle:

But looks like a tunnel from the top:

But coming the other way to the same location is just look like a girder bridge:

samparfitt posted:

Great Northern railway trestles over Chumstick and Tumwater canyon.

Video of GN P-2 mountain crossing trestle over Chumstick canyon.

https://www.youtube.com/watch?v=ujdVUF1STZI&t=46s

 

That is impressive.

Joe

I only have one, so far....

Looks good Mo, I would show you mine but it doesn't have a layout as of yet!

samparfitt posted:

Great Northern railway trestles over Chumstick and Tumwater canyon.

Video of GN P-2 mountain crossing trestle over Chumstick canyon.

https://www.youtube.com/watch?v=ujdVUF1STZI&t=46s

 

Those look absolutely fantastic!!

White Line Bridge- NJ Hirailers

if you have a truss on top why do you need the arch truss underneath? or vice versa

structural overkill.

But it sure looks impressive!

structural overkill.

Way to go Mo!!  I like the bridge!!

Like the Great Northern bridge over the Columbia river.  Do to later, heavier trains, they just built another bridge around the existing one.

Yellow & Blue Line Bridge- NJ Hirailers

PAUL ROMANO posted:

White Line Bridge- NJ Hirailers

Nice looking trestles. Did you them ?

Trussman posted:

PAUL ROMANO posted:

White Line Bridge- NJ Hirailers

Nice looking trestles. Did you them ?

 

No. I've worked on some of them but the majority were built by NJ Hirailers club members and Silk City Bridge Works.

PAUL ROMANO posted:

Trussman posted:

PAUL ROMANO posted:

White Line Bridge- NJ Hirailers

Nice looking trestles. Did you them ?

 

No. I've worked on some of them but the majority were built by NJ Hirailers club members and Silk City Bridge Works.

Thanks for your response. The reason I asked, they look like the ones I use to build and sell.

NJ Hirailers

Trussman posted:

PAUL ROMANO posted:

Trussman posted:

PAUL ROMANO posted:

White Line Bridge- NJ Hirailers

Nice looking trestles. Did you them ?

 

No. I've worked on some of them but the majority were built by NJ Hirailers club members and Silk City Bridge Works.

Thanks for your response. The reason I asked, they look like the ones I use to build and sell.

 

It looks like one you built because You did build that one    Don't you remember coming with your laser to measure?  We bought this from you

samparfitt posted:

Like the Great Northern bridge over the Columbia river.  Do to later, heavier trains, they just built another bridge around the existing one.

Overland imported the main span and the approach span in HO, beautiful model. 

I have never uncrated mine, this is a Brasstrains photo

https://www.brasstrains.com/Cl...eck-Truss-Bridge-F-P

bluelinec4 posted:

Trussman posted:

PAUL ROMANO posted:

Trussman posted:

PAUL ROMANO posted:

White Line Bridge- NJ Hirailers

Nice looking trestles. Did you them ?

 

No. I've worked on some of them but the majority were built by NJ Hirailers club members and Silk City Bridge Works.

Thanks for your response. The reason I asked, they look like the ones I use to build and sell.

 

It looks like one you built because You did build that one    Don't you remember coming with your laser to measure?  We bought this from you

Never used a laser, or even traveled to measure a layout, mainly by mail for custom bridge's or trestle orders. My system to do a print for a custom order was simple and I'd guarantee the finished product would fit with in 1/8". I used 1/4" kiln dried oak, deck design was notched and inner locked. The side profile of my trestles dimensions, 3" between bents and 3" between heighth on horizontal braces supporting the diagonals on outside of the bents.  Example of one of my orders, double track radius (quarter of a circle) trestle, outside track 080, inner track parallel w/outer track, one end of trestle 35" high w/ a 1% up grade, clearance at the bottom for a river. It's been about 15 yrs when I stopped doing it.

If you did York 15 yrs or longer, you've most likely seen me set up in the purple hall.   

Grandfather's collection pics from 1935.  Titled Sycamore creek RR bridge at Lone Mountain TN. Working on elevating the tracks before the TVA flooding.

Here are a few bridges made a couple years back. There were 5 of the 5 foot long Combo bridges mounted end to end, thats 25 feet.

AlanRail posted:

if you have a truss on top why do you need the arch truss underneath? or vice versa

structural overkill.

I thought it looked good. My original plan was only the truss, then I thought about the arch, and after I installed it, I removed the shelf brackets supporting the truss, and the arch is actually supporting the entire bridge. 

the arch is actually supporting the entire bridge.  exactly so you dont need the top bridge

use it some where else.

The BNSF Railway Bridge 9.6 is a swing-span railroad bridge across the Columbia River, connecting Portland, Oregon with Vancouver, Washington, United States. It was opened in 1908. This photo was taken from near the bridge's north end, in Vancouver, showing the swing-span section turning (in the process of closing).

Canadian Pacific Railway train crossing Fraser River southbound on Canadian National Railway Cisco truss arch bridge at Siska, British Columbia (2010-Jun-13). Canadian Pacific 3-span truss bridge visible in foreground.

AlanRail posted:

the arch is actually supporting the entire bridge.  exactly so you dont need the top bridge

use it some where else.

 

Sorry, but you don't seem to be listening.  Mo said "I thought it looked good.".  I also think it looks good.  I'm sure most of his visitors think it looks good.  

It's the way Mo wants it. That's good enough for me.

Steven J. Serenska

 I had planned to get Silk City Bridge Works to make me a bridge. I finally saved up enough to talk to them about it. I made the mistake of walking into a big Chevy dealer who made me an offer I couldn't refuse!

 So..... I still don't have the bridge. I do have a new Chevy truck though. 

Maybe three more years and I'll have a bridge from them. 

Mo985 posted:

I only have one, so far....

     Mo985, that is a great looking bridge      I like it alot !       great job !!!

NJ HIRAILERS

Wow, so many neat bridges, scenic views, Imagination in motion, great looking back from the beginning of this unique thread...Pictures are worth a 1000 words. Happy Thanksgiving to all.

Here is a different idea for a bridge , kind of neat.