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Bridges and tunnels were crucial for railroads as they enabled trains to traverse challenging terrains, such as rivers, valleys, and mountains, ensuring a more direct and efficient route. They facilitated the expansion of rail networks by connecting previously inaccessible areas, thus enhancing commerce and transportation. Additionally, these structures increased safety by allowing trains to avoid dangerous crossings and steep gradients, ultimately improving travel times and reliability.

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AnswerBot

2mo ago

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