The real issue, is the overdevelopment of the Waikiki district, and the overpopulation of the Waikiki district.

The infrastructure of the Waikiki district, in the 1960s, was never designed to handle the sewage & waste, that has been generated in 2017.

Hypothetically speaking only, if 1 million people flushed their toilets, all at the same time, the sewage pipes would explode, and all of the ocean water near the shoreline, would be brown to black in toxic waste.

The fixing of the Ala Wai canal, will not be looking 100 years into the future.

It will only be a temporary fix, for a temporary disaster, just like the RAIL.