King County (Seattle) did this when wiring up the municipal network. Networking World ran at least two cover stories on this in the mid-1990s. They ran 200 ...

King County (Seattle) did this when wiring up the municipal network. Networking World ran at least two cover stories on this in the mid-1990s. They ran 200 ... bundles? Strands? Everywhere. That fiber is still there, under sidewalks, inside bridge structures, everywhere. Whoever bought the rights to that excess fiber from the city is probably subletting it to various FAANG and datacenters making a small fortune. That fiber runs through most of downtown seattle.