As with any major urban civil works project, cooperation with the many utilities providing basic services is essential to project success, cost and schedule control and for relations with the general public. In the process of diverting public utilities, the infracture is being modernized as new material replaces the old. The efforts to date have resulted in minimal disruptions to the citizens of Athens.

CONSTRUCTION AFFECTING PUBLIC UTILITIES
Stations	21
Cut-and Cover Tunnels	2,5 Km
Ventilation Shafts	31
Storage Yard and Maintenance	120, 000 m2
UTILITIES AFFECTED
OTE	Telephone & Communications Cables
EYDAP	Water & Sewer Pipes and Culverts
PPC	Low and Medium Voltage Power Cables
DEFA	Gas Pipes
ILPAP	Trolley Bus Power Cables and Overhead Wires
OSE	Communications Cables for Hellenic State Railways
DKEO	Traffic Light Control Cables
Athens Municipality	Street Lights, Traffic Patterns and Signage
ISAP Existing Metro Line