Garrett Boon 
This popsicle stick bridge was made from 40, unmodified popsicle sticks. The bridge spanned 12 inches, was 4 inches tall and 3 inches wide. I used only Elmer’s white glue to build the bridge. It weighed 57.4 grams (0.13 pounds), and held 90 pounds. Its efficiency score was 712.
Learn all the main types of trusses used in real bridges, and see how to apply them to model bridges. Learn the history of each common truss design. This page is designed to help you make an educated decision about what truss design you should use on your bridge.
I have developed a system for bending wood for my arch bridges, and though I do not claim it is the best way, it works well. It does require some materials and equipment that hopefully you will already own and not need to get. I have a pot, or basin rather, that is about 18″ … Read more
This balsa tower was 12 inches tall, 8 inches wide at the base, and tapered to a 2 inch square at the top. I only have about forty pounds of sand, so I ended up adding any heavy object in sight to the bucket. After putting in the ceramic mug used to pour the sand, … Read more
The Bridge Designer is perhaps the greatest online tool for building model bridges. It allows you to design a virtual truss, put a load on in, and it calculates how the forces are spread out. Amazing.
The glue you choose to use on your model bridge (or model airplane) can make or break your structure. I’d venture to say that glue choice is just as important as your wood choice, which makes it pretty important. If you build your bridge with a weak glue, then no matter how good the design is your bridge will not perform well. This article compares and contrasts different types of glues, showing the strengths and weaknesses of each so that you can make an informed choice for what glue to use on your bridge.
I am constantly asked whether Balsa is better than Basswood. Here are some of my notes comparing the two woods. Balsa is cheaper and more available than Basswood. This means you can buy more wood and build more bridges for the same amount of money. Hobby and craft stores seem to sell a larger selection … Read more