The Giulio Rocco bridge, an overpass above Metro Line B and the Roma-Lido railway, closed following the earthquake that struck central Italy in 2016, has been demolished and rebuilt.

PM&D Engineering S.r.l., commissioned by ASTRAL S.p.A., is carrying out the Construction Supervision after having drawn up both the General Variant Design and the Executive Design.

The original bridge consisted of two reinforced concrete decks built in different periods: the Garbatella side dated back to the 1920s, while the Ostiense side was built in the 1950s.

The demolition of the bridge was carried out by performing longitudinal cuts on both decks, in order to obtain structurally independent portions that could be lifted with cranes.

The new bridge, made of COR-TEN steel, is a single-span structure with a length of 34 m and a width of 13.40 m. The two main girders are extradosed box beams with a height of 3.60 m; there are 18 central transverse beams in HEA600 profiles and 2 end transverse beams. Each abutment consists of a foundation raft approximately 2.50 m high on 26 micropiles, each with a diameter of 240 mm and a driving depth of 27 m.

The launch of the new Giulio Rocco bridge, whose structure had been assembled in the construction yard, was carried out with the aid of a single maxi-crane with a lifting capacity of 600 tons and a maximum boom length of 53 m.