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16-25″ span

100 Stick Popsicle Bridge: 21″ Howe Truss

March 31, 2024October 12, 2012 by Garrett Boon

The 100 stick popsicle bridge challenge is on. This Howe Truss bridge uses 99 popsicle sticks, spans 21 inches, and holds 200+ pounds. It’s efficiency score is 678. This is an updated version of my old “Popsicle Bridge #3” which was the same length, but slightly different in construction.

Categories Popsicle Bridges Tags 16-25" span, howe truss, popsicle bridge 61 Comments

Fernbank Project: Strongest Bridge Design

April 5, 2024October 9, 2005 by Garrett Boon

I built this bridge for the 2005 Fernbank Science Center bridge design event. The bridge spanned 16 inches, weighed 37 grams, and held 346 pounds. That puts its efficiency over 4200! One commenter said, “So if this bridge weighed one pound, it could have held up my car.”

Categories Examples Tags 100+ lbs, 16-25" span, balsa/basswood 88 Comments

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Recent Comments

  1. nOAH tAHYER, AUSTiN lAREAU, aDRINA bARNES on Manilla File Folder BridgeApril 10, 2025

    hEY GaRRET. iM In pHYisCS AS A 11tH GRADer AND waNT tO kNOW HoW u mADE yOuR aWSESOME COOLIO BrIGE

  2. Bella on Forces that Act on BridgesApril 5, 2025

    same i still don't get what shearing is

  3. Elenna on 100 Stick Popsicle Bridge: 21″ Howe TrussApril 2, 2025

    Hi! I'm doing a school project on making a stick bridge and have a few questions: Would the project work…

  4. Liz on 100 Stick Popsicle Bridge: 21″ Howe TrussApril 2, 2025

    wow thats cool

  5. Cindy on 100 Stick Popsicle Bridge: 21″ Howe TrussApril 2, 2025

    How long does the bridge hold 200 pounds for? We are doing a school project and it must hold for…

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