Rivers, continuities and discontinuities. The case study of the Darro in Granada and the Tiber in Rome

In the past the liaison between the cities and the watercourses they were founded on was mandatory. Nowadays with the expansion, overpopulation and soil consumption of the cities, this link has been lost. Watercourses are presented mainly in two ways within the urban fabric, a void acting as division but creating a common identity, or with a complete removal of the river's course, leaving only the suggestion to deal with the memory. The study aims to address two different situations in which the river becomes an element that does not increase the value of the urban fabric but decreases it. The first case is the one of Darro (a river buried underground to favor urban development) in the city of Granada, the second of the Tiber (a river which is not connected to the city) in Rome. The research seeks to bring attention to this increasingly current issue, proposing solutions through examples of merit of urban redevelopment.