Temporary closures of the Outer Harbor rail line for the construction of a rail overpass over the lowered motorway and the South Road surface roads.
The scheduled closure dates are:
5 and 6 November 2016 (weekend)
2 to 22 January 2017 (3 weeks!)
25 and 26 March 2017 (weekend)
Looks like the overpass will go up during January next year
For you interstaters the T2T project is the River Torrens to Torrens Road upgrade to South road