THE INFLUENCE OF MARINA CONSTRUCTION IN BEACH STABILITY: EL MILAGRO CASE STUDY

摘要

The analysis of the behaviour of a beach, after the construction of a marina at one of its side, is made in this paper. El Milagro Beach, Tarragona, (Spain) is a 1.5 km long sandy beach. Two nourishment works were carried out along the beach, the first in 1986 and the second in 1993. Eleven surveys have been carried out since 1986. A marina was constructed in 1995. From the monitoring program, the shoreline evolution and profile changes have been determined before an after marina construction. It is concluded that the construction of the marina changed the beach stability.