The rehabilitation of one of the maintenance holes – the Southern Main Sewer – in O’Riordan Street, Alexandria, was recently completed.
Water Infrastructure Group Project Manager Pieter Schoofs said that O’Riordan Street is the main road connection between central Sydney and the Sydney Airport.
“To minimise disruption on this heavily trafficked street, Water Infrastructure Group implemented a 72 hour traffic control plan, so that the work could be carried out over one weekend,” says Mr Schoofs.
“On the Friday night, we excavated to expose the existing chamber and installed a shoring frame to secure the excavation. This shoring frame was designed so that road plates could be installed after the weekend during normal traffic flow if required. In this case, it wasn’t necessary as all work was successfully completed within the scheduled 72 hour timeframe.Article continues below…
“The roof and upper walls of the 1.8 m chamber were demolished. A precast roof and the new wall arrangement were installed, and the road surface was reinstated on Sunday evening,” concluded Mr Schoofs.
Water Infrastructure Group expects that the rehabilitation of the remaining maintenance hole chambers will be completed by August 2012.