Poseidonos Avenue undergrounding to transform Southern Athens traffic

The undergrounding of Poseidonos Avenue in Elliniko is expected to significantly transform transportation in Southern Athens. According to the Elliniko-Argyroupoli Municipality, the project aims to reduce traffic congestion, create new road connections, and facilitate easier access to the coastal area.

Currently, residents of Elliniko and Argyroupoli face travel times of at least 25 minutes to reach the Agios Kosmas beach due to existing barriers like Poseidonos Avenue and the former airport site. Once the project is complete, the municipality estimates that access to the coastline will take only a few minutes.

The infrastructure will include an underground tunnel with six traffic lanes, contributing to a broader coastal road network that will feature a total of 12 lanes. This development is intended to integrate existing neighborhoods with the new Ellinikon development, creating a unified urban space with direct sea access.