Upgrade of Derveni and Chelidorio Tunnels with LED Luminaires and re-coating

In the context of the works for the installation of LED luminaires in the Tunnels of Derveni and Chelidorio (Τ8 and Τ7) respectively and their re-coating, traffic arrangements will be applied in the area by closing the traffic direction to Athens.  The necessary traffic arrangements will be implemented from Tuesday, June 10, 2025 until Monday July 7, 2025, at the latest, together with a diversion of the traffic branch to Athens to the traffic branch to Patras using the Emergency Openings located from k.p. 138.9 to k.p. 136.7 and the simultaneous implementation of a two-way traffic arrangement on the traffic branch to Patras between the above-mentioned kilometric points, in accordance with the following diagram.

Olympia Odos would like to thank the drivers for their understanding and invites them to comply with the relevant signage and the instructions of the Traffic Police, as well as to be particularly careful when crossing the said area.