Suggestions requested on bridge trusses (Atlas Pratt or other)

look at plastruct  online catalog to see if that helps or evergreen styrene plastics.

Might look at the Menard's thru truss bridges. They have a solid base.

https://www.menards.com/main/h...48287683&ipos=21

https://www.menards.com/main/h...48287683&ipos=22

Does anyone know if the Atlas Pratt truss bridge truss sections come apart, such that I can only use them and the top connecting pieces?

How about a Lionel #332 under-arch bridge?

Paul it has been a long time since I constructed the Atlas kit. However, One thing I remember about the bridge is that the bottom, sides and top braces all work to keep it a monolithic type structure.  If you are going to just mount it completely built on the plywood, it might work.  But if you want to use just the side and top braces it might be difficult to mount them securely.  

As an alternative, you could install 1 or 2 Lionel (351?) bridges that have a flat bottom.  They are not as detailed or neat as the Atlas bridge, but they are a complete structure with a flat bottom that would sit flush with your plywood lift and allow your track to align. The only caution is that taller rr cars might not clear the top frame of that bridge.  My PRR snow plow car is too tall.

FWIW, I'll edit this to post pics soon.

Paul the sides are one piece and the top is several. This bridge is really not made to be handled. I would go with something else.

Greetings Everyone,

When I built my Atlas Truss Bridge I glued everything together because of the application it was intended  for.  It lifts out so the hinged section of my layout can be pivoted up for access to the inside of the layout.  The bridge sits inside of two "cradles" on top of each of the abutments.  This assures perfect alignment of the bridge every time it is removed and replaced.  The bridge is rather well constructed and I have not had any issues thus far.  Here's some pictures.

Chief Bob (Retired)     

Here's a few more pictures as the layout construction progresses.

Chief Bob (Retired)

Thanks everyone.

The only way I can see if the Atlas doubletrack bridge would work is to see a kit as it comes from the factory. Its the only bridge that has the correct length and width for my project.

Paul,

If you’re just looking for some trestle sides to mount onto the plywood span, why not just use the old Plasticville trestle bridge, Bachmann 45975 O Scale Plasticville Trestle Bridge.  They are relatively cheap and you can buy however many you need in order to cover your span.

The Shadow