Foreign travelers may feel trepidation driving over ancient bridges. However, these structures have withstood time, built tough through ingenious engineering and robust designs.
Garrett Ryan explains that ancient designers ensured bridges could bear loads heavier than those in practice, with no scientific stress modeling; they knew how to construct durability.
Arches played a crucial role in tough bridge construction, involving heavy blocks laid over temporary frameworks, solidified with keystones that distributed weight effectively.
Many Roman bridges, such as the Puente de Alcántara, still show no signs of failing, harboring modern traffic, exemplifying the enduring craftsmanship of classical engineering.
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