this post was submitted on 06 Jan 2026
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there's a difference.
their engineering was amazing, but to compensate for lack of modern maths, they build with a much larger margin of safety and strength.
that's why some of those aqueducts last 2000 years.
no one wants to build infrastructure that lasts so long. we could build a bridge designed to last thousands of years, but it'll cost way way more, and the budget isn't unlimited.
Also our bridges are subjected to the insane forces of truck freight transportation. Who know how long they would last otherwise.
It's also worth pointing out those structures aren't subjected to a lot of freeze thaw cycles, not to mention almost no salt.