The contract relates to the assignment of the services and works mentioned in the inscription, based on the documentation on which the Technical Administrative Committee of the Interregional Superintendency for Public Works has expressed a favorable opinion.

The tender contract concerns the maintenance service of the Lido Treporti barrier gates, divided into 2 phases comprising:

Phase 1:

- rebuilding of the TP-12 reserve gate, currently stored in the Arsenale, of the antifouling coating, construction of two watertight chambers and installation of the instrumentation, the males and the shock absorbers,

- removal of the TP-01 gate currently in Pos. 6,

- installation of the TP-12 reserve gate in Pos. 6,

- maintenance of the TP-01 sluice gate removed from the barrier, implementation of changes to the internal instrumentation including the sealed chambers,

- removal of the TP-21 gate currently in Pos. 2,

- installation of the TP-01 sluice gate in Pos. 2,

- maintenance of the TP-21 sluice gate removed from the barrier, implementation of changes to the internal instrumentation including the sealed chambers and its transport to the Arsenal after maintenance has been completed,

- evaluation of the results achieved during the first phase and planning of the subsequent activities,

Step 2:

- rebuilding of the TP-13 reserve gate, currently stored in the Pagnan area, of the antifouling coating, construction of two watertight chambers and installation of the instrumentation, the males and the shock absorbers,

- removal, ordinary or extraordinary maintenance activities and subsequent re-installation of all the other gates currently installed in the barrier. At the end of the Second Phase, the last two maintenance gates will be transported by the Company to the Arsenal and stored there, as respect gates.