The consolidation of the archaeological investigation revealed in full mode the state of emergency the site had reached after all these decades of deterioration, demanding immediate intervention. Not only the underground structures had to remain clean, dry and accessible, but also the heavily weakened mother-rock had to be supported and weatherproofed (rain water would invade even from the roofs of the rock-cut structures). For this purpose, screen walls were built in key spots around the site providing the necessary isolation to the underground structures from future invasions of soil and dump. An all-new water-control system was designed for the site in order to prevent any future concentration of waters. A new suspended pavement was installed, not built, in the underground structures, allowing the water to pass under it through canals, towards the drainage system.