Genoa, 25 June 2019 - “The laying of the foundation of this new bridge over the Polcevera River is a milestone for such a strategic project for Genoa and the country,” says Pietro Salini, Chief Executive of Salini Impregilo. “This is a project that not only aims to help bring a city closer to the region but also looks to the future of Italy, showing how this collaboration between the state and the best of the country’s companies can bring the country together and help make it grow again.”
“The new bridge will have to be simple and parsimonious, but not trivial. It will look like a ship moored in the valley; a light and bright steel bridge. It will reflect the sunlight during the day and absorb solar energy to return it at night. It will be a sober bridge, respecting the character of the Genoese.”
Renzo Piano recounts his idea of the new bridge, a sober and discreet presence.
The viaduct on the Polcevera River is an essential junction connecting with France, the port and, generally, with nearby areas. It is a fundamental element that will allow Genoa to take back its role of great port and trade city.
The new bridge will have a continuous steel deck just over 1.1 km, with 19 spans. It will have 18 elliptical piers made of reinforced concrete, the majority of which positioned 50 metres from each other. Two of the piers will be positioned 100 metres from each other: the Polcevera river one, and the two adjoining ones. The design allows the optimization of structures and foundations, limiting their dimension in a densely populated and urbanized area.
The reconstruction of the bridge will represent the rebirth of a great city like Genoa and signal a new phase of development for the country. It will show that even in Italy it is possible do infrastructure relatively quickly: from identifying the need for a public work through to its execution. The project represents an example of collaboration between two large companies that complement each other and puts to the service of the city their unique expertise.
Other NewsGenoa, April 15, 2019 - The construction of the new bridge has begun
The construction of the new bridge over the Polcevera river started with the pole for the stack number 6 being drilled underground. This will be the first of eleven poles supporting the base of stack number 6, all drilled into the ground down to a 46-meter depth. The realization of the infrastructure has thus started in the building site located at the foot of the viaduct, even though they are still invisible from the outside as entirely underground.
Valeggio sul Mincio, March 11, 2019 - Salini Impregilo and Fincantieri ready to start bridge construction 10 days early
“We are ready with Fincantieri to start work on the underpinnings of the bridge 10 days ahead of the scheduled March 31 date because Genoa must return to work again, offering a future to all those workers who can find a job on work sites dedicated to the construction of infrastructure.”
Genoa, 11 February 2019 - Genoa Bridge demolition begins
“Genoa's, Liguria's and Italy's relaunch" as Prime Minister Giuseppe Conte stated, began on February 9, when one of the girders of what remains of the Genoa Bridge (West side) was dismantled and lowered, vertically, to the ground.
The 36 metre-long and 18 metre-wide girder was lowered 43 metres at 5 m/h, under the watchful eyes of the Italian Prime Minister, the Minister of Infrastructure Danilo Toninelli, Genoa Mayor and Reconstruction Commissioner, Marco Bucci, and Chairman of the Liguria Region Giovanni Toti.
Genoa, January 18, 2019 - Salini Impregilo, exactly a month since it received the appointment to build the new Bridge on the Polcevera viaduct, in Genoa, from Commissioner Bucci, has officially signed the contract, committing itself to help relaunching the Ligurian city, with Fincantieri, through the newly established company, PERGENOVA.
Technology and Development:
Salini Impregilo’s 100 bridges
Over the past 100 years, Salini Impregilo has made a contribution to development in civil engineering by building a total of 102 bridges and viaducts, stretching for a combined length of 590 kilometres. Some of these are far-flung examples of majestic infrastructure that play a strategic role in the mobility of goods and people, while others are examples of technological excellence.
SALINI IMPREGILO HAS BUILT
From the railway viaduct at Recco that connects northern Italy with the central regions, built in 1914 and rebuilt after the bombing damage of World War II, to the second bridge over the Bosphorus; from the Rosario-Victoria in Argentina to the replacement of the Gerald Desmond Bridge underway in the United States, Salini Impregilo has built bridges for vehicles and trains in more than 20 countries. These include cable-stayed bridges like the Sfalassà viaduct at Favazzina on the Salerno-Reggio Calabria highway in Italy; extremely long bridges like the 977-metre A. Max Brewer in the United States; or complex highway systems like the Anchieta and Immigrantes in Brazil, consisting of nine consecutive bridges and viaducts between 74 and 1,225 metres long. Large projects, built using the most up-to-date techniques, some of which rank among the top feats of civil engineering.
The Skytrain: A curved bridge for a Sydney metro line
Construction work on the Sydney Metro Northwest, a line that will serve areas like Bella Vista and Rouse Hill in the Australian city, is not finished yet but the Skytrain viaduct has already become a landmark for the city. The line that will run along the bridge will cross 23 kilometres of the city, stopping at eight stations. The bridge’s distinctive feature is its curved structure, taking up its entire above-ground portion at a height that varies between 10 and 13 metres, and for a total length of 4.6 kilometres. The structure enables the trains to make a wide curve along their track supported by 130 concrete piers spaced about 39 metres apart.
The Gerald Desmond Bridge: A strategic infrastructure for Long Beach
The new structure will have a tough task to live up to: substitute the historic Gerald Desmond Bridge, which connected the port of Long Beach in California to land transportation – a fundamental artery for trade considering that 15% of cargo at the port must pass through this infrastructure. Work on the new cable-stayed bridge began in 2013. It spans 610 meters in length and stands 62 metres (as high as an 18-story building) above sea level. This great height is necessary to accommodate the to and fro of the massive new post-Panamax ships. Once completed in 2019, as according to plan, the two towers of 157 metres in height will make it the tallest bridge of its type in the country, enabling it to carry three lanes of traffic each way, for a total of 68,000 vehicles a day and 18 million transits each year.
The second bridge on the Bosphorus
An integral part of the Istanbul skyline, the second bridge over the Bosphorus River is a prime example of how a large infrastructure work can change people’s lives and contribute to the economic well-being of the area. The Fatih Sultan Mehmet Bridgeis not only a mighty piece of engineering, with a span of 1,090 metres at its widest point, but it also connects a 247-kilometre-long highway that links the city of Kinali in Europe to Kazanci, in Asia. Built between 1985 and 1994, its construction was a response to the need for commuters and travellers to cross Istanbul without passing through its centre. Something that was extremely useful for the Turkish metropolis, as demonstrated by the traffic flows registered on the bridge and the impact on the adjacent neighborhoods. During the seven years following the bridge’s construction, trade volume between the adjacent areas rose 31.8%, while from 1994 to the present day the urban build-up in the area surrounding the bridge’s access points swelled from 340 to 42,260 hectares.
The Rosario-Victoria: A bridge for South America
Its leap across the valley of the Paranà River is not only spectacular – supported by a main section 608 metres long – but also a triumph for business traffic linking four countries: Chile, Argentina, Uruguay and Brazil. The cable-stayed Rosario-Victoria Bridge is actually part of a 59.4-kilmetre highway link between the cities of Rosario in the province of Santa Fé and Victoria in Entre Rios in the northeastern Argentina. The bridge has cut travel distance for cars and trucks headed north by 120 kilometres, substituting a tunnel that used to pass under the river. The impact on trade is considerable, given that Rosario is the main center for grain production in Argentina, and the bridge creates a transport corridor between the Atlantic and Pacific coasts.