Exploration of the north-eastern side of the town, outside the walls, in the area of the Liculi lagoon was carried out as part of the investigations undertaken by the Centro Jean Berard. A campaign of geo-archaeological core sampling and geo-electrical survey confirmed the lagoon’s extension towards the south for a distance of fifty metres from the walls and the gate.

A vast excavation area between dry land and the lagoon uncovered a stretch of the via Domitiana and part of a monumental necropolis.
The earliest remains were constituted by a series of structures, perhaps artisan areas (courtyard built of large squared tufa blocks, a well and small kiln), destroyed in the last quarter of the 1st century B.C., when a large circular mausoleum was built in the area. At the same time a road, probably serving the necropolis, was built on an east-west alignment and parallel to the town walls. During the last quarter of the same century an opus incertum wall was constructed on a north-west/south-east alignment, on top of the extension of a sewer. Subsequently, to the west of the wall, a channel was dug linking the sewer, which silted up fairly quickly during the first half of the 1st century A.D., to the lagoon. It was only partially emptied between 50-60 A.D. and later filled, in the Flavian period, with a substantial quantity of debris. In 95 A.D. the road passing north of the mausoleum, connecting to the via Domitiana, was paved with basoli and a series of enclosures containing tombs with inhumation burials and funerary aediculae were built up against the circular mausoleum. The inhumations continued until the 4th-5th century A.D. After the 6th century A.D. maintenance of the road was no longer guaranteed and it slowly became covered with colluvial deposits. It was later obliterated by new beaten earth surfaces.