Italian heavy lifting specialists Vernazza Autogru and Autovictor worked together utilising three crawler cranes to lift and then position a 728-tonne steel railroad bridge, measuring 78 metres long, over the river Alpone near San Bonifacio, Italy.
The three cranes used were: a Tadano CC 68.1250-1; a Tadano CC 38.650-1; and a 400-tonne crawler crane.
Initially the Tadano CC 68.1250-1 lifted the bridge on its own to a height of 15 metres at a radius of 20 metres. It then travelled 45 metres on doublelayered red ironwood crane mats to the river. For this the bridge was rigged at four points and the crane set up with an SSL configuration with a 72-metre-long main boom.
Once in position at the river the other two cranes joined the operation. Autovictor’s Tadano CC 38.650-1 was set up with a 68-metre-long boom, while the 400-tonne crawler crane had a 35-metre boom. They hooked the ends of the bridge and precisely manoeuvred it into be position onto its support points.
In total the job around two months to complete.
