Nah all the old buildings are gone..BUT everything is related to a boundary or road both horizontally and vertically...real bitch.

Heres the sewer if you are interested..I have as follows to go
Drainage
Water
Gas
Recycled Water
Thermal pipes
Power (underground)
Communications
Road surfaces (and 3D models)
Kerbs

etc etc etc etc

https://dl.dropbox.com/u/4090628/DE02829.pdf this is the sewer