Alex Vuocolo at Noema:
If you start talking with engineers about maintenance, somebody always brings up Incan rope bridges. Maybe you’ve seen an illustration or a digital rendering in a Hollywood movie. They’re the color of hay and hang with a bit of slack over rivers and canyons in Peru’s rugged terrain. Made from ichu grass threaded into progressively denser and denser bundles, they were ritualistically maintained by ancient Peruvians. They lasted for centuries. Most are long gone now, though at least one has been preserved for posterity as an infrastructural artifact, just like the R32 at the New York Transit Museum in downtown Brooklyn.
It’s hard to imagine a modern ritual that would be equal to the task of perpetually renewing steel bridges, concrete highways and cement buildings. It would require an entirely new industrial paradigm.
more here.