BRIDGES Ӏ SECTOR SNAPSHOT


CREATING CONNECTIONS


Bridges, both big and small, are one of the most visually striking pieces of infrastructure.


As the following examples illustrate, building bridges can be challenging, too, with a wide range of equipment and techniques being used to bring them to fruition. Julian Champkin reports.


From Roman aqueducts via the Ponte Vecchio in Florence to Brunel’s Clifton Suspension Bridge or San Francisco’s Golden Gate: bridges have, from earliest times, counted among some of the most iconic and spectacular engineering achievements of mankind – as well as the most useful. Today’s bridge-building spans the


scale from mega-projects to small intimate foot- or cycle-crossings; and


the lifting machines that help build them are equally varied. Tower cranes, mobile cranes, crawler cranes, strand-jacks, and SPMTs can all play their part. A crane type that is particularly suited to many mid-range bridge tasks is the crawler; and for case studies of crawler cranes in bridge-building see the article on page 36 of this issue. Here, though, is a selection of other types of cranes used on recent projects – both large and small.


BORDER CROSSING


24 CRANES TODAY


Photos courtesy of the Gordie Howe International Bridge project


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