The MOSE (Modulo Sperimentale Elettromeccanico, Experimental Electromechanical Module) is a project intended to protect the city of Venice, Italy, and the Venetian Lagoon from floods. The project is an integrated system consisting of rows of mobile gates installed at the Lido, Malamocco and Chioggia inlets (the gaps connecting the Venice Lagoon and the Adriatic Sea through which the tide ebbs and flows) and able to temporarily isolate the Venetian Lagoon from the Sea during high tides. Together with other measures such as coastal reinforcement, the raising of quaysides and paving and improvement of the lagoon, the Mose has been designed to protect Venice and the lagoon from tides of up to 3 m and is due to enter into operation for tides above 110 cm.
The work is being carried out by the Consorzio Venezia Nuova acting on behalf of the Ministry of Infrastructure and Transport - Venice Water Authority. Construction work began in 2003 simultaneously at all three lagoon inlets and 75% has now been completed.
MOSE is part of a General Plan of Interventions to safeguard Venice and the lagoon commenced in 1987 by the Ministry of Infrastructure through the Venice Water Authority (the Ministry's operational arm in the lagoon) and the concessionaryConsorzio Venezia Nuova. The measures already completed or underway along the coastline and in the lagoon are the most important environmental defense, restoration, and improvement programme ever implemented by the Italian State.
In parallel with work to construct MOSE, the Venice Water Authority and Venice Local Authority are raising quaysides and paving in the city in order to protect built-up areas in the lagoon from medium high tides (below 110 cm, the height at which the mobile barriers will come into operation). These measures are extremely complex, particularly in urban settings such as Venice and Chioggia where the raising must take account of the delicate architectural and monumental context.