Following tropical cyclone Oswald in 2013, the Gordonbrook Dam spillway was significantly damaged. CMC was contracted by South Burnett Regional Council to repair the floor of the spillway, together with provision forshotcreteing the channel batters.
The repair works included batter stabilisation via passive steel anchors and new shotcreting; repairs to existing shotcrete batters; removal of damaged or deteriorated concrete in the drop structures and replacement of these structures; repairs to the spillway channel holes including the installation of passive steel anchors through the previous repairs and casting; and provision of gravel access tracks into the dam to provide an alternate route in times of flood.
Collaboration: CMC completed the project approximately two months ahead of schedule, maintaining flexibility through the construction period and commenced work on the agreed ‘known’ areas of scope whilst the client finalised the overall scope.
Safety: CMC recorded no environmental or safety incidents throughout the project.
