Brodosplit has delivered 63 flood gates with dimensions 27-30 x 20 meters, 4.5-5 height, and 300 tons of weight, that consist of 20,000 tons of built-in steel and with total value of over 70 million €, including corrosion protection, final equipping and transport.
Brodosplit employees are extremely proud of this project given that it was won in the internation tender among very strong competitors – shipbuilders and steel construction manufacturers. It will remain permanently listed as one of the companies that participated in one of the biggest construction project in Italian history that has contributed to the rescue of Venice from the major problems caused by tide.
The specificity of the project is extremely extensive documentation, 100% traceability of materials, client's right to additional quality testing in an independent laboratory of his choice, one hundred percent testing of welds with NDT methods, 10 year paint warranty for RI1 according to ISO standard 4628/3 and obligation to transport finished product to the installation site.
Such a big project was the chance to engage institutions and other Croatian companies such as the Faculty of Naval Architecture and Mechanical Engineering in Zagreb where the quality tests were conducted and / or Gumiimpex from Varaždin, which fabricated demanding elements- rubber fenders that during lowering the gates on the seafloor accept their entire weight and by absorbing energy return them back to the horizontal position.
The project of saving Venice from sinking is called MOSE (Italian abbreviation of Modulo Sperimentale Elettromeccanico) and is an integrated protection system consisting of mobile floodgates capable of separating the Venetian Lagoon from Adriatic Sea in cases of tide higher than the established level (110 cm) up to do maximum od 194 cm.
The mobile gates are installed at Lido Tre Porti, Malamocco, Chioggia and Lido San Nicolò inlets, and project envisages installation of 78 gates with 100 years life span.
When they are filled with water, they will lie down at the sea bottom, and when they are filled with air, they will be lifted up to to the sea surface and used for closing the entrances to the Lagoon.