Our first bridge was a failure to say the least. It was beam bridge with almost no support. We built it like this because we thought that the different crosses in between the beams would keep the rest of the bridge strong. This was our second choice for a design, originally we wanted to just make a three-d square that would span across the gap in between the tables.
First bridge test
Second bridge test
We learn that making bridges takes a good amount of trial and error. We understand now that if you can delay extreme tension or compression then the bridge will be able to hold more and last longer.