The project is included with a high hierarchy in the Integrated Road Safety Improvement Plan of the Region of Eastern Macedonia – Thrace and concerns the construction of a 153 m long bridge on the Lissos River on the Provincial Road ‘Komotini Kalchas Gratini Phillyra Arriana’, with a view to the seamless and safe traffic of passing vehicles, since during periods of intense rainfall, the existing ‘Irish diffusion’ is not accessible.