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AlanRail posted:

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

use it some where else.

 

Alan, Well you really could not remove the bottom arch the way it's built as your previous post asked. So maybe you could remove the top bridge. You would have to replace it with something. So why not just leave it as it is? The trains are protected from being accidently bumped off. I like his solution. If every layout were built the exact same way, how boring would that be?

See the source image
this bridge has a lower level for cars. However there is a lot of steel supporting the train bridge deck. The one to the left also has big plate steel under the tracks.
paul 2 posted:

JACKIEJR, is that bridge for real. It must be for a private driveway or road. The trucks of the flat car look like they are sitting on tables. Although it makes for an interesting project for a road over a creek............Paul

Hey Paul    Was doing a google search for wood trestle bridge  pictures and this pic was included. Looks real to me; like you mentioned would make for an interesting build so thought I would post a picture.

These pictures are great, and they inspired me to paint and weather three bridges that will go on my new layout, pictures below.  My "newbie"weathering skills are about the same as a kindergartener, but at least I now have three bridges that look "similar enough", as they started out as three different colors, two are metal and one is plastic.

IMG_3139IMG_3137IMG_3136IMG_3138

 

You guys that do weathering are like super-heros to me.  I've watched a few videos and at first thought it'd be easy, clearly it's not!  I'll try to update this reply with pictures when the bridges are installed.

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We've been working on this for our new G scale modules, One of our members designed it and his boss built it and donated it to us. I went with a trailer to pick it up 120 miles south of me,20170410_13135220170407_125530 it weighs some were around 900Ilbs, was plasma jetted from 3/4 plate steel and welded. now I just sand blasted it and put some primer on it and will super detail it like the other bridges Ive done for myself. Bridge section opens but I need to counter balance it as the bridge section weighs in at 400ilb alone. It is over built but free is free so it will ride in it's own trailer for Club shows.

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I had some time today do to the storm so I decided to finish asembling a bridge I started back in the spring. I have no room for it on my present layout but when I retire in 3 yrs (hopefully) I am gutting my basement and will gain anothe 12 X 24 area for my last build. The bridge is 105 inches long  by 10 1/2 wide.from the bottom girders to the top is 25 inches with 10 inch legs. Its made out ofaluminum and a whole bunch of 4-40 screws and nuts.

 102_1990

The train is williams PA's and williams 62ft streamline cars.

102_1987

The bridge is wide enough for 2 tracks and can also accomadate 3. I have not decided weather to leave it open or put a wood floor on it.

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The roadbed is supported from the arch by 1/8 wide double cables and it seems to hold a lot of weight I put 75lbs of shot in the middle to test and it did not sag at all.

102_1988

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I'm not going to have a lot of bridges on my layout.but the few that I will have are pretty cool.

This is the big one, the Milwaukee Road Short Line Bridge over the Mississippi River.

IMG_7924

Image result for milwaukee road short line bridge

This one is going to be on the layout too. The Milwaukee Road lift bridge over the Mississippi at Hastings, MN.

261_0915trainroom_1334

This is the BNSF lift bridge over the St Croix River at Prescott, WI.

TRAINS_1269TRAINS_1275TRAINS_1272

Those will be the only three railroad bridges on the layout.

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Old Toymaker, The bridge is quite a great accomplishment!!  I can see why you want to redo your basement when you retire in 3 years.  This bridge would be a centerpiece model on any layout!  I'm with you, hoping I can retire in 3 years and have more time for a layout!!

Elliot, Those are some nice bridges to model indeed!  The lift bridge would be great.  You don't see them around here.  I saw one in action once across the Arkansas River in Fort Smith Arkansas 25 years ago.  Really cool!!

Paul - Thanks. I'm not actually going to build a curve, I'm going to make five straight sections. The end sections are girders that go over the east and west river roads, then there are the two piers in the water and the three truss spans. They are very complex! I doubt I will get into that level of detail. The Twin City Model Railroad Museum has a model of this bridge on their layout. It is magnificent. One guy did it all in brass! BTW, I didn't really choose the bridges, I just chose the area to model. The bridges came with the territory.

Mark - Lift bridges are cool, and I ended up with both of them. All of the other rail crossings along the Mississippi, Minnesota and St Croix rivers are on swing bridges or high enough above the water to just be fixed spans. After Hastings the Mississippi gets too wide for lift spans.

old_toymaker posted:

I had some time today do to the storm so I decided to finish asembling a bridge I started back in the spring. I have no room for it on my present layout but when I retire in 3 yrs (hopefully) I am gutting my basement and will gain anothe 12 X 24 area for my last build. The bridge is 105 inches long  by 10 1/2 wide.from the bottom girders to the top is 25 inches with 10 inch legs. Its made out ofaluminum and a whole bunch of 4-40 screws and nuts.

The train is williams PA's and williams 62ft streamline cars.

102_1987

The bridge is wide enough for 2 tracks and can also accomadate 3. I have not decided weather to leave it open or put a wood floor on it.

102_1989

The roadbed is supported from the arch by 1/8 wide double cables and it seems to hold a lot of weight I put 75lbs of shot in the middle to test and it did not sag at all.

This bridge is a work of art and engineering. My compliments.

MELGAR

Big_Boy_4005 posted:

Paul - Thanks. I'm not actually going to build a curve, I'm going to make five straight sections. The end sections are girders that go over the east and west river roads, then there are the two piers in the water and the three truss spans. They are very complex! I doubt I will get into that level of detail. The Twin City Model Railroad Museum has a model of this bridge on their layout. It is magnificent. One guy did it all in brass! BTW, I didn't really choose the bridges, I just chose the area to model. The bridges came with the territory.

Mark - Lift bridges are cool, and I ended up with both of them. All of the other rail crossings along the Mississippi, Minnesota and St Croix rivers are on swing bridges or high enough above the water to just be fixed spans. After Hastings the Mississippi gets too wide for lift spans.

Thank you for the scoop on the lift and swing bridges.  Here in the Three Rivers Area the land rises up so high from the rivers, all bridges are well above the water.

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