I talked to someone laying fiber in Manhattan circa 2020 he said it was $25k / ft. That the permitting process took so long by the time it got approved the people on the city council had changed. That the conduits are so packed you can’t fit another fiber line in it and almost all of them are undocumented. All kinds of union circumvention BS from Verizon aka Empire City Subway who’s supposed to be maintaining this stuff per contract. It’s a shit show.