The Pratt truss bridge, a revolutionary design in bridge engineering, was invented in 1844 by Thomas Willis Pratt and his father Caleb Pratt[1][4]. This innovative bridge design came at a crucial time in American history when the need for efficient and sturdy bridges was growing rapidly due to expa

The Pratt truss bridge is a significant engineering innovation in the history of bridge construction, known for its structural efficiency and durability. It was designed by Thomas Willis Pratt and his father, Caleb Pratt, with the patent being granted on April 4, 1844. This design marked a crucial