During the laying of the new methane gas pipeline between Acerra and Pomigliano d'Arco (NA), in an area close to _Clanis_ (Regi Lagni), a series of road-beds, ploughed fields and channels of late antique date were uncovered. These finds indicate the organisation of agricultural space undertaken between the 4th and 5th century A.D. and obliterated by a layer of mud from the so-called “Pollena” eruption which, according to the sources occurred either in 474 or 505 A.D. The lines of some of the late antique roads follow those of channels that were in use until the 3rd century B.C. and act as boundaries to the lots within a centuriation system. Their orientation (N 65° O) now seems to provide new archaeological confirmation of the system of agricultural division (orientated N 62°- 64° O) identified on aerial photographs and historic maps and already verified many times by the numerous investigations undertaken by the Superintendency in the territory of Acerra. The remaining roads found seem to refer to a system of agricultural division (orientated N 45-50° O/N 40-45° O) which probable dates to the late antique period. This was suggested for the first time by F. Castagnoli, whilst French archaeologists later corrected the orientation (N 41° O, naming it Nola II), without however giving precise dating. Worthy of particular attention is a beaten earth road found in trench 8 (orientated between N 20° O and N 15° O). This road certainly had a long period of use between late antiquity and the modern period, and may have been the extra-urban link between ancient Acerra and the area of Pomigliano d’Arco. Here, it has survived in a modern road on the same alignment which leads in the direction of the municipality of S. Anastasia, a territory which in the past has produced many finds of Roman date.