The project was first announced in 2008 by the Rann Government.
The Marshall Government has attributed the latest delays to border restrictions making it difficult to access skilled workers interstate.
Wingard, who xjmtzywlast year stated the project would be completed in late 2021 or early 2022, apologised for the “further short delay” but said the State Government was doing “all that we can” to get the line running again.
The transport minister also announced that the final stage of works will necessitate “impacts” to “the entire Adelaide Metro Network during the period 18-21 February, with all lines closed on 19 and 20 February”.
“There is no denying this has been a difficult project to deliver but I’m extremely proud to be part of a government that doesn’t run away from the hard stuff and gets on with the job of building what matters,” Wingard said in a statement.