PETERBOROUGH LIFT LOCK #1

A diagram of the Lift Lock from the visitor's center display at the Peterborough Lock.

This is how it looks driving in on the low side.

Notice the tour boat in the upper chamber that came in on the high side and is waiting to come down

Once the tub is loaded the transfer only takes two minutes. Here the upper tub is on the way down, forcing the lower tub up.