A number of trenches were dug in order to uncover the access stairway to the walkway abutting the eastern face of the gate and the drainage system along the road passing through it, which later became the via Domitiana. As early as the Republican period an in flow pipe from this water system drained into the sewer built by Aristodemus.

Excavations in the area between the gate and the farm situated near the racecourse aimed at tracing the outer curtain of Hellenistic date. A trench opened next to the tower was deepened down to the foundation offset of the wall, thus acquiring a bench mark that was essential for the reconstruction of the system of defences. On the town side definition of the system was provided by the discovery of the late archaic inner curtain, which was fairly well preserved. Thus, it was seen that there was a recess along this line towards the south, where a stairway providing access to the walkway was inserted. This deviation in the line of the wall was determined by the need to incorporate within the fortifications of Aristodemus the earlier defensive structures. A trench dug between the two curtain walls confirmed the proposed chronology of around 560 B.C.

A trench dug near the ex-racecourse, within the embankment of Aristodemus, revealed an earlier defensive structure, of the type with two curtain walls built in horizontal levels, faced with structures of tufaceous chippings. The emplekton was constituted by alternating layers of tufa chips and grey silt, datable generically to around 560 B.C.

Furthermore, excavation of the tower with the four-part plan, and the adjacent sector of the Hellenistic fortifications continued. For the first structure the dating of the beginning of the 4th century B.C. was confirmed, whilst in the second case a substantial deposit of articulated animal skeletons was recovered, amongst which were at least three cattle and a canid.