HIGH COMMENDATION: JAMESTOWN VIADUCT, FIFE
The four 30m steel lattice spans of Jamestown Viaduct required upgrading from RL0 to RL10 loading to cope with heavier and faster trains running across the steel deck linking the top anges of the lattices. Steelmaker Corus developed the idea of adding a high-strength concrete-slab top ange, plus a modest amount of steel to increase the shear strength of the trusses. All the work was achieved during an eight-day rail possession already scheduled for work on the Forth Bridge in late July last year.
Client Network Rail Cost £4 million Principal designer Corus Contractor Carillion (née Mowlem)