The streets: The streets that delimit the block are drawn according to a pre-established plan, respecting the orientation that was given to the streets at the time of the foundation of the city (around 22° Northeast). They intersect at right angles and form rectangular city blocks. The block discovered at the "Clos de la Lombarde" is about 25 X 100 meters. The streets are of different widths, between 8 and 12 meters. Along the north side of the block, an alley quickly turns into a cul de sac. The streets were not paved. They were simply covered with soil and gravel and sometimes had cart strips. At the "Clos de la Lombarde", two streets were lined by a sidewalk covered with a portico. Street A parallel to the Via Domitia seems to have been  built at the end of the Republic and could be  contemporary with the urbanization of "Clos de la  Lombarde". It ran along House II to the west and the House with the  Porticoes to the east. It was 8.20 meters wide. It was  regularly maintained.  It provided pedestrian pathways along the facades of  buildings that bordered it.   A portico resting on the west wall of the House with the  Porticoes sheltered passers-by, merchants and  craftsmen who found refuge there.  A central tread was dedicated to the circulation of carts and trolleys.  Some slabs were found with deep ruts. Street C intersected Street A at a right angle and ran along the House with the Porticoes on its north side. It originally measured 5.80 meters in width. It allowed access to neighboring homes but above all had a very complex sewer system to collect rainwater and sewage improving the comfort of the houses that bordered it. By the middle of the first century, the bordering houses IV and VI encroached onto the street before occupying its full width turning it into cul-de-sac. Towards the end of the second century, an artisanal establishment settled on the street in its western part, destroying the street but using the main sewer to evacuate its waste water. Street B, facing west - east and cutting Street A in a right angle was only partially uncovered and has not been excavated to date. Street D parallel to Via Domitia was south - north.  On its west side, the baths were located. House I  stood to the east.  The street was 11.20 meters  wide.  It allowed the circulation of carts and trolleys  on a central tread. The porticoes which bordered it  on both sides provided shelter for the pedestrians  walking there.  This street is still under study and  no publications have been released yet.  Rainwater and wastewater networks: It was only during the first century AD that a water distribution system was installed under each of the streets. The sewers were made of flat tiles (tegulae) on which walls made of squared rubble were supported. The ducts were covered with tiles, vaults or slabs. The covers fell victim to "materials reusers" and have often disappeared. Openings were installed at certain places to allow cleaning and maintenance work. The collector of street C received about twenty sewers from adjacent houses. It led into the main collector of Street A. A large collector and secondary sewers were also found under street D. The sewage system in the antiquity used the natural slope of the ground. It takes the form of masonry ducts of rectangular section or terracotta pipes, but usually lead, put end to end. Ornière sur dalle Réseau d'assainissement Grand collecteur Conduit maçonné et tuyau de plomb Regard de maintenance