All underground pipework (aside from pipes laid under a structure) ought to be at a profundity of no less than 750mm. Channels must be at any rate 2m away from road furniture, for example, road lights and utility shafts, and at any rate 350mm away from different utilities in the ground. This is to forestall pipework being entered by liquids or petroleum gases and considers simpler access on the off chance that upkeep is required later on.