The actions undertaken so far have sought to restore the coastline, which has retreated due to erosion, and to strengthen the coastline against the risk of storms and flooding, in particular related to storm surges, which have been a major concern in recent years. Works also seek to reduce the risks of landslides along coastal cliffs.
The actions in this case study were undertaken in two municipalities. Here, three main types of shoreline are found: a beach in front of cliff; a cliff face on the water line; and a relatively broad coastal beach, however with few dunes in the backshore, which rises towards hills. In the municipality of Sirolo, where the first two types of shoreline are found, the erosion of San Michele beach has been accompanied by afforestation which reduced the beach area and the cut off sediment. In addition, waves hitting the base of the sea-cliff of Mount Conero risk creating landslides which could endanger part of the town. In the municipality of Numana, erosion has reduced the width of a relatively long and broad beachfront, bringing a coastal road closer to the shoreline. This area extends to the Musone River; works on this river have reduced the transport of sediment to the shoreline, increasing erosion.
To an important extent, the challenges addressed arose due to previous human interventions. For example, modifications of rivers in the region, including the Musone River, at the south of the beach area in Numana, have reduced their transport of sediment to the sea and to the beaches. Another example is work to place large blocks at the base of the sea cliff of Mount Conero: while the intention was to protect the cliff, it appears that these accentuate wave energy. The work has helped to adapt against the impacts of climate change. Beach nourishment will need to be continued in the near future, with the goal also of addressing sea-level rise (actions to address sea-level rise of about 25 cm for 2050 and 60 cm for 2100 are being considered in planning).