Kirkfield Lift Lock

The second highest lift lock in the world (the highest is coming for us, in Peterborough, in a few days).  There are two "chambers" - one is up, one is down - sort of like a Ferris Wheel.  Boats motor into the upper or lower chamber, at the same time. The gates close, they put a little more water in the upper lock, and the hydraulics then have the upper (heavier) lock come down and push water under the lower lock, and they switch places. One comes down, the other goes up. The gates open and everyone motors out.

Really neat!

boat coming out, above the lock

The lock on the left is open to the upper canal.
Looking down to the other lock, at lower canal level.

Big height difference here.
Too big for a single conventional lock.

How it works

View from below.
Right lock is at the upper canal level.

Left lock at lower level

This is the highest point of the Trent-Severn Waterway.
The buoys here are (logically) RED RIGHT UPSTREAM.
So, we now keep the reds to port, as we will be going down from here
to Lake Ontario.
[Picture shows Red to Port for boats going downstream to
Georgian Bay]