At the spillway location at Hazelmere dam ultra-high capacity anchors (80 strands and up to 90m long) provide overall stability against sliding and overturning. The anchors also provide crucial support for the base of the world’s largest Piano Key Weir. Despite the difficult access challenges anchors were successfully stressed and tested to permit early impoundment of water.
Dr Devon Mothersille examines the anchor testing set-up on one of the inlet keys at Hazelmere dam.
Adjacent anchors lie 1.55m apart centre to centre on the inlet keys.