Stage one of repairs complete
SUNWATER has completed stage one of its remedial works at Paradise Dam following severe flooding caused by ex-tropical cyclone Oswald over the 2013 Australia Day weekend.
Following the flood, SunWater identified significant damage to the spillway energy dissipator and the rock downstream of the dam, and immediately developed a repair schedule to manage the dam safety risks.
SunWater CEO Peter Boettcher said the first stage of the repair effort, which involved emergency repairs to enable the dissipator to withstand a late season flood event, has been completed on schedule.
"The aim of this phase was to treat any scour risks on the dissipator and the rock foundation up to 20 metres down stream of the dissipator," he said. "This distance has been assessed as sufficient to deal with the most significant features in the Goodnight beds rock formation to provide assurance that the dam will withstand another flood event."
SunWater will now start stage two of the interim repairs with completion expected in late 2013.
Intermittent releases will continue to ensure the level of the dam remains three metres below full supply level.