ADK Civil offers directional drill and hydrovac excavations ADK Civil ADK Civil is a trenching, underground pipeline specialist. It provides the D36x50 directional drill and D16x20a directional drill to install between 63mm and 600mm poly and steel pipes. ADK Civil also offers 8000Litre hydrovac excavation and 2000Litre hydrovac excavation. Services from ADK Civil: Install overhead and underground optic fibre Install underground electrical cable, joint inside pillar boxes Prepare pad mount substations Prepare and stand streetlights Test and commission for Ergon to connect to the main frame