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First Timer

First Timer’s Second Bridge Design!

April 5, 2024November 11, 2008 by First Timer

Hey guys it’s me again, First Timer. Taking the critiques you guys gave, I rebuilt the bridge. This was going to a county Science Fair which I think is pretty cool considering I started learning about bridges about 2 months ago. The specs of the bridge are

Categories Examples Tags balsa/basswood, reader submitted 2 Comments

Bridge Terms

October 30, 2008 by First Timer

Hey everybody once again it’s me, First Timer. I thought the one thing that would make this website even better would be some vocabulary on the parts of bridges. Here are a few terms that might help if you ever need to describe different aspects of a truss or bridge. Let’s start with “Arch”…

Categories Building, Design Tags reader submitted 15 Comments

K-NEX Bridge for Fun!

April 5, 2024October 28, 2008 by First Timer

Hey guys it’s me again, First Timer. I came up with a good way to practice bridge building either before or for the next competition and/or just to keep your bridge building skills good, whether it be science fair or science olympiad. It’s building different bridge designs with K-NEX, Erector Sets, and/or LEGOs. Most of you probably own one or more of the following and it really helps practicing basic truss design

Categories Examples Tags k-nex, reader submitted 4 Comments

First Timer’s First Bridge Design

April 5, 2024October 21, 2008 by First Timer

Hello everybody my name is First Timer and I had to make a balsa wood bridge with theses specs: 40.5 cm long, 11-12 cm wide 13-25 cm high, must have a span of 26 cm, peek of the span must be at least 9 cm, and this bridge could weigh no more than 16 grams

Categories Examples Tags balsa/basswood, reader submitted 8 Comments

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Recent Comments

  1. Tim Timson on 100 Stick Popsicle Bridge: 21″ Howe TrussApril 7, 2026

    Thank you for this. It really helped a lot!

  2. Gavin on J.C. Booth State Bridge 2005April 7, 2026

    We built this for our AP Physics balsa bridge project. barely did any measurements and made it in like 3…

  3. Scilordplayz on Forces that Act on BridgesApril 7, 2026

    Im working on a project about bridges where I have to build a bridge and you just showed me some…

  4. arandom7thgrader on What Bridge Design Holds the Most Weight?March 31, 2026

    Im in 7th and is making a bridge that spans 24 inches. Im doing pratt with 9 segments. What lateral…

  5. Garrett Boon on 25 Bridge Building TipsMarch 30, 2026

    That's affirmative. Much lighter.

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