I have to wonder.
Does this third set of locks have a dam to prevent uncontrolled releases?
If not and the new set of locks fail, IMHO a very likely event, the entire Panama Canal System would fail as Gatun Lake drains. Bottom line: No Gatun lake no short cut between the Atlantic and Pacific Oceans. And it would take years for the Lake to refill itself.
How would ships go through a dam, without another series of locks?