Labourers for the new harbours came originally from Ostia. People
had to cross the river every day and went to their work at Portus
by foot. Soon a road was built between Ostia and Portus, called
the Via Severiana. Crossing the Tiber was done by ferries. Across
the channel at Portus a bridge was built at the beginning of the
second century AD.
After a while more and more people started a housekeeping in Portus.
At the end of the second century Ostia as well as Portus were
Portus was described as 'Portus Ostiensis'. The council and magistrates
of Ostia controlled also the daily life of Portus. The harbours
of Ostia still kept their function as we can notice by the many
corn warehouses. Their capacity was far too high than strictly
necessary for the local population.