courtesy Cornell University 

In the Supplemental Competition, students designed, analyzed, and developed the construction sequence for a scale-model bridge intended for a site in Missouri's Katy Trail State Park. Teams submitted proposals for a bridge that supports pedestrians, bicyclists, equestrians, and park and emergency vehicles, and the site had some restrictions: no permanent or temporary piers in or near the river, and restricted footing locations, construction zones, and member sizes.

For the National Finals, a portion of each team's score will be based on the popular vote for their video.