as the arch halves would act as cantilevers if
installed separately. Consequently the arch halves were
installed using a tandem lift, with two high capacity
cranes holding the elements in position until a temporary
connection had been made at the crown and connections
had been fastened at both of the bases. Structural
restraints that acted as bracing were installed on the arch
to reduce the effects of wind loading whilst waiting for
the next possession of Princess Road and the installation
of the cables.