36th Annual
Toothpick Bridge Competition

Thursday, February 24, 2011

Pictures of Bridge Construction

Click on a picture below to see a larger image
(With thanks to the students from Fosston High School )
1. Draw truss full scale on grid paper. Pin the drawing to 1" construction foam.
2. Create "posts" by overlapping and gluing together a number of toothpicks.
3. Cover the draqwing with wax paper to prevent the glue from sticking to the drawing. Push toothpicks through the paper into the foam to lay out the posts on the truss diagram.
4. Several identical trusses can be built up on the same plan, to ensure that all parts align.
5. The bridge is completed by connecting similar trusses with cross members. Note that the cross-members crisscross to provide strength.
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