Beginners Polo

I'm pretty sure someone has noticed this before but tfl have an interactive map which displays where road works are happening or planned to happen.

It displays what type they are and what the planned work is.

Might be useful in finding pipe. It might even tell you the size of pipe their using...

http://public.londonworks.gov.uk/roadworks/home

And of course don't forget to ask nicely for any offcuts they don't want.