I am reminded of a 1973 story by Frederick Pohl called "In The Problem Pit" ( https://www.rulit.me/books/in-the-problem-pit-read-682068-1.... ). In the story the Arecibo telescope itself had been abandoned and it took place in a network of natural caves underneath it, a silo of sorts where people gathered in a 'think tank'.

"And then, when all radio telescopy was driven to the far side of the Moon by a thousand too many radio-dispatched taxicabs and a million too many radar ovens, the observatory no longer served a function and was abandoned."

The events in the tale take place in ~2048 and Pohl imagined that even at that future date the rusted cables were still holding the catwalk aloft. He did not live to see the facility's collapse.