how much does a arch bridge weight
bridge was then tested again. Therefore, every bridge type was tested a total of two times and the results were recorded. Results The first beam bridge held 14.5 pounds. Beam bridge number two held 12 pounds so the average weight of the beam bridges was 13.25 pounds. Arch bridge number one held 21.5 pounds. The second arch bridge held 21 pounds so the average weight held by the arch bridges was 21.25 pounds. Truss bridge number one held 24 pounds. The second truss bridge held 23 pounds so the average weight held by the truss bridges was 23.5 pounds. Conclusions/Discussion The results of this experiment proved that the hypothesis was correct in that the truss bridge held the most weight. The beam bridge was the weakest holding the least amount of weight and the arch bridge was the