MODELLING AND MONITORING OF A PERCHED BEACH AT LIDO DI OSTIA (ROME)

Abstract

A description is given of a new large project of artificial beach nourishment protected by a submerged sill carried out at Lido di Ostia near Rome in 1989-1991. After a review of the main aspects of the design (supported by model tests) and construction, details are given of the ongoing field monitoring program. Collected data has been used to verify the predictions of numerical models of cross-shore and longshore evolution of the perched beach. Useful preliminary lessons have been drawn from this unconventional experience of coastal protection.