In message , at 12:54:36 on Mon, 5 Aug 2019,
NY remarked:

What is the typical number of lock-emptyings per hour that a canal can
handle?

Depends on the size of the paddle-gear. But one lock every five minutes
is about the fastest one would normally achieve.

However, you don't do it like that - the correct method is to open the
paddles both ends, which will at least double the flow compared to a
lock full ever five minutes.
--
Roland Perry