Bridge Building

Model Bridge Design - bottom of page has helpful articles http://www.garrettsbridges.com/

Balsa Wood Bridge - How to Build a Strong Balsa Wood Bridge http://www.historyofbridges.com/model-bridge/balsa-wood-bridge/

Helpful steps to design ad build your Bridge: https://www.usbr.gov/lc/region/programs/bridgebuilding/Presentation.pdf

Garret Bridges: Design https://www.garrettsbridges.com/design-it/