If it weren’t for the Springrove Dam, completed in 2013, and which filled very quickly, Durban Metro and Pietermaritzburg would have been in dire straits due to the drought.
Springrove Dam, on the Big Mooi releases water downstream, to the Mearns weir, where it is pumped into the Lions River, which feeds into Midmar Dam.
Without this feed, Midmar would in most likelihood have dried up and not be at 80%, as of June 2017.
This post shows images of Springrove Dam from the air, and images of the Drakensberg mountains in the background.