The Galsi pipeline across the Mediter-ranean Sea will transport natural gas from Algeria to Sardinia and mainland Italy once completed. Parts of the 560 km (348 mi) offshore route encounter difficult seabed morphology, descending and climbing steep slopes in water depths approaching 3,000 m (10,000 ft). Variable and potentially unstable soil con-ditions exist on the route. Secure engineer-ing design and stable pipeline routing call for detailed knowledge of seabed structure and topography, plus an insight into the geotech-nical properties of the soils on the seafloor. Galsi is an acronym from the Italian Gas-dotto Algeria Sardegna Italia. The project company Galsi S.pA was incorporated in 2003 to promote and manage construction of the proposed new natural gas connection from North Africa into the Italian gas grid.
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