LEGO Bridge Challenge

Building a LEGO Bridge is a great engineering project for an afternoon inside.  You want your student to use only LEGO to create a strong, stable bridge that will be able to hold weight. Research, build, test, and rework elements of your bridge to make it stronger.


  • A bin of assorted LEGO
  • An assortment of objects to use as weights (this will be how to test the strength of the bridge). Possible weights could include, bottles of water, bags of rice/ dried legumes, or books.


We challenge you to build a stronger bridge than the one we created in this video.

Don’t forget to share your creation on social media, and tag us in it so that we can see your bridge!

Download companion worksheet here.


Here are some more fun LEGO projects: