Of course, you could argue that the boom is losing some of its momentum which is possibly true. But I still suggest that Aussies are better served to consider the benefits of our growing economy instead of continually trying to point out how things can't get better at the same rate forever (ever heard of a place called Europe?).
Mining capex is still expected to grow by more than a whopping 17% next year to easily the highest level it has ever been. Ergo, the capex phase boom is definitely not over.
The fun part is guessing when the mining capex boom will peak. BIS reckons two years (but their forecasting record is woeful). Stevo reckons the investment boom has "several years to run". Using my own sophisticated analysis techniques (drawing a neat curve on the back of a fag packet) I reckon the mining boom peak might come around December 2015.
As for what happens in 2016, well, Australia will gradually transition into the production phase of the boom, but I think I'll worry more about that nearer the time, personally.
Perversely, as the overall rate of capex growth is somewhat below expectations, this data is likely to actually slightly increase the rate of an interest rate cut next week to somewhere around a 2 in 3 chance.