Another city with similar problems is Berlin, I was there recently and I was puzzled by the crazy pipes all through the centre of the city.
Turns out that the ground water level in Berlin is really high so all construction sites (and there are huge number of these in Berlin) need to pump out the water from excavations which explains the pipes everywhere.
Turns out that the ground water level in Berlin is really high so all construction sites (and there are huge number of these in Berlin) need to pump out the water from excavations which explains the pipes everywhere.
http://robertherrmann.wordpress.com/2012/01/20/the-fancy-tub...