De Grunenberg’s fortifications in Augusta. Knowledge and conservation of a neglected heritage

[EN] Between 1674 and 1678, a land and naval war occurred just off the east coast of Sicily, between France and Spain. The town of Augusta had a wide natural harbour but an inadequate defence system: thus, it was easily conquered by the French army. After the war the fortifications of the town were updated. In this respect, the military engineer Carlos De Grunenberg built new fortifications on the isthmus that connected the town to the mainland. Historical and landscape value of De Grunenberg’s fortifications derives from their specific position in the area where the old town, surrounded by the sea, meets the mainland and the modern quarters. Unfortunately, the fortress was conceived as to be built on a flat ground, rather than on a slope. Its clay foundation wasn’t taken into account and serious instabilities, caused by earthquakes and the action of the sea, now urge for consolidation and restoration works, which represent the issue of the present proposal.