The study first involved the evaluation of the static conditions of the 'Luigi Rizzo Sud' breakwater in case of mooring of different types of ships and in various weather conditions. This evaluation, carried out by SJS Engineering Srl, gave a negative result, both as regards the sliding of the superstructure and for the overturning as a rigid structure.

All the conditions analyzed in the assessment of the suitability of the existing breakwater as a shelter mooring also highlighted the inadequacy of the seabed actually present at the foot of the breakwater (harbour side) in the area affected by the shelter mooring.

The Client has therefore decided to build a mooring system for damaged vessels independent from the existing breakwater, through the installation of breasting dolphins and mooring dolphins, moving the mooring line by 30 m (harbour side) until it reaches a suitable bathymetry depth (about -17 m). The extension of the shelter mooring concerns the progressive stages of the Rizzo Breakwater from +500.00 m to +1100.00 m.

These platforms are connected by connecting walkways to allow moorers to quickly secure the mooring lines to the bollards without the use of boats, as well as allowing the rapid safety of the personnel on board.

The types and characteristics of the vessels in the new shelter mooring project have been provided by the Trieste Harbor Master's Office and represent a case study of the vessels currently moored in the Port.