Bowstring truss bridges are celebrated for their elegant, sweeping arches and their remarkable ability to span long distances with structural efficiency. Their distinctive silhouette, characterized by a curved upper chord (the "bow") and a straight lower chord (the "string"), is not just aesthetica

This guide provides a detailed, step-by-step approach to constructing a bowstring truss bridge model for science fairs or engineering demonstrations. Designed for students and hobbyists, it covers design principles, material selection, construction techniques, and testing methodologies to ensure a