Did the Romans divert the Llobregat?

Albert Ferrer proposes that the lost Roman city of Rubricata may be Sant Feliu de Llobregat and suggests that the Llobregat River's course was different in ancient times. He theorizes that the river may have flowed north of Barcino and could have been redirected by the Romans. Ferrer bases his hypothesis on historical maps and archaeological findings, indicating that Sant Feliu had significant Roman influence. Recent discoveries, including Roman wells and grain silos, support the idea of a Roman polis in the area. Ferrer emphasizes the need for further archaeological verification of his theories.