facebooktwitter


Peterborough Lift Lock

Peterborough Lift Lock

One of only two hydraulic lift locks on the Waterway, Lock 21 is the highest hydraulic lift lock in the world. Opened on July 9, 1904, it leaves a visible and lasting impact on Peterborough's landscape. Quiet overnight mooring is located at the upper level. There are plenty of services within a 10-minute walk to the East City area of Peterborough. The Peterborough Lift Lock Visitor Centre is located next to the lock.

At the Visitor Centre, visitors can find public washrooms, as well as exhibits and films. The Visitor Centre is open daily during the navigation season. No external power is needed to operate the lock. The Peterborough Lift Lock functions by gravity alone using the counterweight principle. One caisson always ascends and the other always descends during each locking cycle. When one caisson reaches the top position, it stops 30 cm (12 inches) below the water level of the upper reach, and the control valve is closed. The upper reach and top caisson gates open, and water flows into the top caisson until the level equalizes.