The engineering review commissioned by Origin late last year was completed in early March and acted quickly to notify the Office of Sport.
The Eraring ash dam was assessed for its ability to withstand a 1 in 1000 earthquake (approximately equivalent to 5.7 on the Richter scale), which is a requirement of the guidelines developed by the Dam Safety Committee under the Dam Safety Act 1978. While the likelihood of an earthquake of this scale is low, the consequence would be significant.
Origin is now developing detailed designs for works to strengthen foundations and embankments around the ash dam and these works are estimated to take between 18 and 24 months to complete. We will continue our discussions with NSW Office of Sport on alternative measures to address the closure of the Myuna Bay Recreation Centre, which include possible relocation to a new facility at Origin’s expense.