Italferr’s projects pertaining to civil works are carried out on the basis of specific technical standards, founded on the most modern national and international technical regulations for High Speed/High Capacity lines, on new technologies and on the effective synthesis of decades of experience in the technical and operational management of existing railway infrastructure.

Some of the works designed and built are unique in the world in terms of their dimensions, complexity and the deployment of technical and human resources.

Bridges and viaducts

The railway bridge over the Po river between Ostiglia and Revere is the railway infrastructure on the Bologna-Verona line that crosses the waterway located between the stations of Ostiglia and Poggio Rusco, in the province of Mantua. The bridge connects the two banks of the Po, spanning a distance of some 500 metres as the crow flies. Weighing 12,652 tonnes, the bridge is made of steel and concrete, consisting of 12 metal trusses with a lower span having two lengths (73.6 and 64.4 metres), a width of 6.6 metres and an average weight of 550 tonnes each, resting on concrete pillars built into the river bed. 

The cable-stayed bridge over the Po (Milan-Bologna line) has a 192-metre central span and two 104-metre side spans, with a total of 72 stays of different lengths and inclines. The deck is a continuous beam with a fixed support on one pylon and sliding supports on the other and on the side piers. The caisson deck has a constant height of 4.70 metres in the central span. The overall width is 15.70 metres. The pylons are 60 metres high, of which 51 metres are above the deck itself.

The arch bridge over the Sieve river consists of two box-section steel arches resting on oblique planes converging towards the top and a deck comprised of a mixed steel and concrete structure. Even the chains are box-section and facilitate inspections at any time. The limited height of the iron surface in relation to the watercourse forced the adoption of the classic solution that eliminated the thrust arch. The distance between supports is 73.4 metres, with a deflection of 16 metres and maximum width of the bridge of approximately 19 metres

The lower arch bridge over the Naviglio Grande (Turin-Milan line) consists of two steel arches with an open double-T cross-section resting on vertical, parallel planes, with a 13.72-metre centre-to-centre distance between the supports. The distance between the supports is then 47.7 metres, whilst the deflection in the keystone of the arch is 12 metres. The deck consists of a grid of beams and crossbeams, at a width of 14.92 metres. The structure repeats the design of the classic arch bridges used by railways since their earliest construction but with the thrust eliminated.