Under the first ICZM Plan (2005-2016), 277 coastal protection measures were implemented over the 176km of the Marche coast. These included both maintenance and realisation of new structural measures (i.e. breakwaters and seawalls) and implementation of soft measures (i.e. beach nourishment, mainly through materials taken from inland quarries and river deposits). In the municipality of Sirolo, about 156,000 m3 of sand and gravel were used for beach nourishment along a 1,200 m shoreline in the San Michele Bay. In the municipality of Numana, a breakwater located to the north of the village was removed and about 172,000 m3 of sand and gravel were used along 1,500 m of beach front. Sand and gravel used for the beach nourishment were excavated from inland sources and were transported to the beach areas where erosion was occurring. The materials fulfilled local precise requirements: they were of alluvial origin and had a similar mineralogical composition, colour and particle dimensions compared to the original beach materials. Within the same intervention, two groynes were realised and one was restored. Moreover, the work included actions to stabilise a cliff base for Mount Conero, close to Sirolo. This mountain is designated as a Natura 2000 site, and the works incorporated the need to maintain site conditions.
The second ICZM Plan became effective in 2019 and, as the first plan, it envisages both periodic maintenance of previously implemented hard and soft measures and new interventions. The plan also foresees re-naturalisation interventions along the beaches. These include the removal or realignment of fixed coastal defences such as groynes and the substitution of existing structural measures with other structural or soft measures. The aim of the re-naturalisation is, on the one hand, to make the coast more accessible for recreational uses by increasing the available beach space and, on the other hand, to restore aquatic ecosystems and coastal dunes. In particular, 37 new structural interventions are planned along the entire regional coastline.
Given the high naturalistic value of the areas, in Sirolo and Numana, the new ICZM Plan does not foresee the implementation of structural measures; however, maintenance and periodic beach nourishment activities are planned to keep the beaches accessible for locals and tourists.
The ICZM plan encourages beach nourishment with recourse to materials which are external to the coastal system, mainly recurring to quarries and river deposits. Only for a few interventions the use of internal sources (coastal deposits) is foreseen. The selection of sources for gravel and sand is based on legal and scientific criteria aiming at minimising environmental impacts. Moreover, an integrated approach is preferred; municipalities are invited to achieve a virtuous circle between ecologically sustainable dredging interventions and beach nourishing, connecting demand and supply. In this context, Marche region aims to take the lead in the creation of a "Sand Bank", a project which aims to define in advance the need and destination of dredged sediments, minimizing those solutions that foresee their disposal in landfills or at sea. In this way, it is expected the availability of sedimentary materials can be optimised.