IWA Regional Symposium on Water, Wastewater and Environment: 22-24 March 2014 Traditions and Culture. Patras, Greece 09-2013 Immediate Interventions for the Restoration of Patras’ Roman Aqueduct Marilena Mentzini 1 1 Structural Engineer, Ph.D., 6 th Ephorate of Prehistorical and Classical Antiquities, Ministry of Culture and Sports, 197, Al.Ipsilantou str,, 26110, Patra, Greece (E-mail : marilena_mentzini@yahoo.gr, mmentzini@culture.gr) Abstract The present paper presents the process directed to the undertaking of the immediate measures as to the protection and safety of the monument against dynamic actions, as well as stresses and damages which can probably occur due to its deteriorating form and the implementation of the project of the Small Ring Road of Patras in the neighborhood. The immediate interventions are prioritized and include in this first phase: A) Stabilizations, prestressing using wire ropes, injections grouts and joining together parts in the positions of danger cracks and/or of deteriorated sections B) Complements on the missing parts on the base of the piers in the south area C) intervention on the surviving arch and to the preserved part of its respective remaining overlying one, which include supportings, raking shores, prestressing using wire ropes, and injections grouts. In order for these to be achieved, actions precede or run at the same time, which are related to the preparation and the layout of the area for the application and protection of the interventions, such as exploratory research work, rainwater management etc. Keywords: monument; arcade; opus testaceum; water; drainage