River bank and bed restoration works for bridge pier protection Bowmans Crossing and Luskintyre Bridges NSW

In June 2007, a severe storm over the Hunter Valley caused extensive damage to private and public infrastructure throughout the Hunter Valley. Moderate flooding caused damage to the abutments of the nominated bridges. The NSW RTA engaged the NSW Public Works to design the rectification works at Bowman's Crossing Bridge and to project manage the design and construction of restoration works at Luskintyre Bridge. The paper discusses and illustrates design, construction, cost and time considerations for the rectification to the bridge abutments for the Bowman's Crossing and Luskintyre Bridges. As part of the oral presentation, construction photographs shall be presented of the various phases of work for the Luskintyre Bridge. The restoration works at Bowman's Crossing were moderate at a cost of less than A$160k (Incl. GST). The river bank and pier restoration works at Luskintyre Bridge were far more extensive and entailed realigning the river bank some 80 metres up stream of the bridge with the placement of approximately 9,000 tonnes of rock, 5,500 cubic metres of sand, 300 cubic metres of top soil and 3,300 square metres of turf.