Bridge plans

Affiliate Disclosure: We may receive a commision from some of the links and ads shown on this website (Learn More Here)

Does anyone know where I can get a plan for a wooden tressel bridge or viaduct? I want to build my own since I haven't found one that I have been happy with. Since I'm freelancing my own railroad...... My bridge will be 2 lanes and rather long. So it can be an arch or whatever, I'm just looking for plans so I can have a start. Thanks in advance.
I LIKIE that!!!! I could probably make my own from that. Now do you think if I made one 30 inches long, it would be wise to put a concrete support from the center under the bridge to the ground? Or would 30" support itself from end to end? It's my own design, but If it's IMPOSSIBLE for a bridge to support itself when it's that long, I want to at least get the idea right.
Simple mistake. So the 30" opening will work. It doesn't matter anyways. The opening in the benchwork is that size, but I can use the 2" white foam to build the sides down. I'm gonna go with the 30" I may even make a concrete support from the center to bottom just cause it looks cool.


Active Member
That bridge is just under 17" long, or just over half of your open span. I've seen a lot of photos of these types of bridges doubled up end to end with a center support.
Chemdawg - you inquired about a 2 lane, wooden trestle bridge. Is this for auto or rail traffic? and did you mean trestle or through truss bridge? Wikipedia has a good pix of a wooden trestle bridge

A good program to design your own for an understanding of forces is

If you are designing a rail bridge, you may want to consider a gauntlet track bridge - very unique.

Design and scratch build is, when completed, very rewarding ;o) is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to