EXPAND TO FIT: High Point Rendel is to carry out detailed design for the £92M widening of the Songsu Bridge in South Korea - a year after it completed supervision of work to rebuild the bridge following the catastrophic 1994 collapse which killed 32 people. The consultant is in joint venture with Hyundai, contractor for the rebuild, and local consultant Chun-ll. The scheme will see the 1,160m long structure - which includes a 760m long main truss - widened in parallel from four to eight lanes. Detailed design will be completed by the end of the year ready to start on site in January. The bridge piers have already been substantially strengthened to resist river scour during the reconstruction work. The additional trusses will now be cantilevered from these piers to support the widened structure. Pre-loading will avoid any load being transferred to the existing deck, as work must allow traffic to flow across this highly congested bridge at all times. Two new interchanges and around 9km of approach road are also planned.