The re-elected Marshall Liberal Government of South Australia will build a $700 million indoor sports and entertainment stadium in Adelaide’s CBD in 2025. South Australia Premier Steven Marshall announced the proposal on Friday, noting that the new Riverbank Arena will be built immediately west of the Morphett Street Bridge. The plan also includes an underground tunnel below Morphett Street linking it to the Adelaide Convention Centre, increasing the exhibition space by 5,600 square meters. The construction will begin when works for the new Women’s and Children’s Hospital, which is estimated to cost up to $1.8 billion, is almost completed in 2025. “This project will create jobs for South Australians and help cement Adelaide as one of the most liveable cities in the world,” Premier Steven Marshall said in a media release. “Our investment will take recent government and private investment in entertainment and convention infrastructure along Adelaide’s riverbank precinct to …