Skip to content
Garrett's Bridges: Resources to Help You Build a Model Bridge
  • Design It
  • Build It
  • Break It
  • Examples
    • Balsa/Basswood
    • Popsicle Stick Bridges
    • Science Olympiad
    • Historic Bridges
    • Video Examples
    • Reader Submitted
  • Kits & Plans

16-25″ span

100 Stick Popsicle Bridge: 21″ Howe Truss

Last updated on December 3, 2021 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 48 Comments

Fernbank Project: Strongest Bridge Design

Last updated on December 8, 2017 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 80 Comments

Recent Posts

  • Know Brainers Popsicle Stick Bridge Challenge
  • Wrought Iron Bowstring Arch Through Truss Bridge with Lattice Girders
  • Johns Hopkins Truss Simulator (New)
  • Bridge Building and Design Games
  • February 2017 Bridge Building Contest

Tags

6-15" Span 16-25" span 25+" 100+ lbs 500+ lbs 1000+ lbs arch bridge balsa/basswood balsa wood basswood beam bridge books boomilever bridge builder blues bridge designer bridge simulator cable stayed cantilever college bridges contest results deck truss elevated bridge glue historic bridges howe truss joints k-truss lateral bracing pony truss popsicle bridge popsicle stick tower pratt truss reader submitted science olympiad software straw bridge suspension bridge tips toothpick bridges tower truss bridge Under 15" Under 100 lbs warren truss west point bridge design contest

Recent Comments

  • Garrett Boon on Bridge Height
  • King Julien on Bridge Height
  • bob on How to Test Your Model Bridge
  • Mäxímé on Masterpiece Popsicle Stick Bridge
  • Mäxímé on Masterpiece Popsicle Stick Bridge

Categories

  • Books (4)
  • Building (20)
  • Contests (9)
  • Design (27)
  • Examples (88)
    • Historic (8)
    • Popsicle Bridges (28)
    • Science Olympiad (17)
    • Videos (17)
  • Links (8)
  • Materials (7)
  • Misc (8)
  • Popsicle Bridge Kits (3)
  • Testing (4)

Learn

  • Design It
  • Build It
  • Break It
  • 5 Steps eBook

Examples

  • Photos
  • Videos

About

  • About
  • Contact
  • Privacy Policy
  • Sitemap

Store

  • Kits and Blueprints
  • Customer Support
Copyright © 2003-2023 by Garrett's Bridges. All Rights Reserved.

PO Box 42
Plains, MT 59859
info@garrettsbridges.com