29 August 2012
A joint venture of Strukton and Ballast Nedam has been awarded a US$85 million contract for major renovation of the A50 motorway bridge over the River Waal in the Netherlands.
Work on the 1km-long steel cable-stayed bridge near Ewijk includes raising the deck level. The bridge will be jacked up by 1m to providing the higher vertical clearance required by modern shipping.
A new bridge is also being built to increase capacity of the A50 across the river.
The renovation work, which is designed to extend the structure’s useful life by 30 years, will be multifaceted. It includes welding, conservation work such as painting, replacing street furniture, replacing cables, pouring high-strength concrete and provision of a new layer of asphalt.
During the first six months, work will be carried out in a 3m-high box that will be suspended under the bridge surface. This approach has been chosen to avoid causing any inconvenience to traffic using the existing bridge.
The work has been commissioned by the Ministry of Public Works and Water Management. Both carriageways of the A50 are being widened, upgrading the motorway from 2x2 lanes to 2x4, plus a hard shoulder.