Truss Bridge: Pratt and Howe
Physics and Astronomy
Sofia Caballero
- Grade:
- 8
- Teacher:
- Kristen Aguanno
Which bridge can hold the most weight, the Pratt Truss Bridge or the Howe Truss Bridge?
Grand Award
Third Place2 thoughts on “Truss Bridge: Pratt and Howe”
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I love how you built both bridge designs yourself and tested them multiple times to make your results more reliable. It was great to see you think about deflection and structure, and your honest reflection on limitations shows strong growth as a young engineer.
This is a well‑designed engineering project with a clear question and a solid experimental setup. You built both bridges carefully, tested them multiple times, and collected meaningful data that allowed you to compare the Pratt and Howe truss designs. Your explanation of why you expected the Howe truss to perform better shows good understanding of tension and compression in bridge structures. The data table and averages were clearly presented, and your conclusion matched your results. I also appreciate that you reflected on limitations such as measurement accuracy and bridge width, that shows real engineering awareness.
Overall, this is a great project!