The Silence is Deafening

I recently drove to Sydney and I have to say it just makes me cross. As you drive through the Riverina and witness the massive open Irrigation Channels you cannot help but think of the evaporation and seepage waste that goes on in this system. To witness out of date irrigation systems is so frustrating.
And then there are the floods in the Northern Rivers and remember the plans that I have seen for flood mitigation to be directed to the inland rivers which will simply assist in making the whole issue go away and the blood begins to boil.
Can anyone tell me why in this time of economic restructure that a Government sponsored redevelopment of these old and out of date systems cannot be seen as a very worthwhile way of setting Australia up for the future.
I am frustrated that we have heard nothing for months from Senator Wong who seems to have forgotten this is her portfolio as well as an elected representative of the people of South Australia who are suffering so badly.
The silence is killing us all - Did anyone here the penny drop?