How to pronounce “drainages” in English

We closed most of the lakes, and the entire water is not percolating into earth.It's going to streams and drainages, and they're choking everything.So then in the 2016 to '17, I did a research about lakes, Bangalore lakes.

So I'll hand over to Oliver now to talk a bit more about some of our design process.And most of this is-- all these green little streams and temporary drainages or seasonal drainages are hugely irrelevant.