| 1999-2001 | Neos Panteleimonas tunnel of the Patras – Athens – Thessaloniki – Evzonoi (P.A.TH.E.) motorway (MINISTRY OF ENVIRONMENT, URBAN PLANNING AND PUBLIC WORKS) |
| 1999 | Design of excavation and temporary support of the cavern of the Evinos aqueduct (TERNA S.A.) |