CNY Bridges: Build ‘Em & Bust ‘Em

The 2021 CNY Bridges: Build ‘Em & Bust ‘Em will be on Saturday, November 6, in-person at the MOST.

The CNY Bridge Build’em and Bust’em Challenge is a free annual student STEM competition in balsawood bridge engineering. Individually or as a team, students design and construct a truss bridge built entirely of glue and balsawood. On competition day, teams submit their bridge for a test of its efficiency rating, a measure of how many times its own weight the bridge can support before structural failure (mass the bridge held divided by the mass of the bridge). Registration is free, and a free balsawood kit is provided to each team that registers before the deadline. Awards are given in three categories: Category I (grades 4-6), Category II (grades 7-8) and Category III (grades 9-12). 

Teams can register here. Registration is free. The MOST provides balsa wood kits consisting of 15 2-foot-long 1/8-inch square pieces for teams to use in building their bridge. They can use any amount of the wood provided. Glue is provided; however, alternate glues can be substituted. Teams must use provided materials to build a bridge that meets competition specifications. Balsawood kits may be picked up by arrangement at the MOST front desk. Teams must be registered before they can pick up materials. Please contact to arrange your pick-up time.

Instructions & Other Resources