[kach22i]

One of the problems old cities have is the utility infrastructure.

It's just so old that it needs replacing, water mains fracture in a cold spell, power grids easily strained in a heat wave.

Heck, here in Ann Arbor our city council-person was explaining that part of the reason for one of the roads being closed for so long was every time the contractor tried to tie the new line in, the old line would fail at that juncture.

They had to keep replacing line until a solid connection could be obtained.

There is the city above ground, and the city underground.