What good does it do to build more dam storage, if they are just going to flush it all out to the sea anyway.
I read they had enough water stored in 2019 for a 7 year supply. And drained it all off.
The story of water in the west is hundreds of years old now
To get a perspective I noticed in the states look up the damn building projects that occurred for instance
Lake Shasta
The grand Coulee Dam
Lake Berryessa
The Hoover dam
These were a man of engineering projects at the time and quite amazing when you study what they did back in the 30s to do what they did