SU 9016 is part of one of four road layers superimposed between the first and latest phases of the Via Gabina. Bulk ceramic finds suggest a date of between between 4th and mid 1st Century BCE. The preparation consists of a layer of gravel, crushed ceramic and earth.
SU 9016 appears to be related to a layer of preparation for a pre-imperial road.
Layer of yellow large tufo stones and different types of inclusions