LEED / SA Water
SA Water decommissioned the existing large diametre water main on Gorge Rd which was deteriorating causing multiple pipes bursts. The requirement was to upgrade the main via slip lining the existing MSCL DN525 trunk main with DN450 HDPE x 1.2km.
Description of work:
SADB were engaged by the head contractor to deliver an alternative method of slip lining. The alternative that was proposed was to utilise directional drill technology to install 450mm PE pipe through the existing DN525 MSCL main. 1200 metres of pipe was installed in 3 drill shots of 350 metres, 400 metres and 450 metres.