Sydney's flagship spring carnival has been thrown into disarray and one of the main grandstands at Randwick closed because it poses a safety risk.
Australian Turf Club officials have already been forced to move Saturday's Chelmsford Stakes meeting to Warwick Farm after an engineering issue was discovered in the roof of the Queen Elizabeth II stand on Tuesday.
NSW Racing Minister George Souris said it was unclear whether Randwick would be fit to host its upcoming carnival meetings, next month's George Main Stakes day and the Super Saturday program on October 1 which boasts four Group One races including the Epsom Handicap.