Peterborough Lift Lock

Peterborough Lift Lock is as known as Trent-Severn Waterway Lock 21. It was originally built in 1904. The current lock was built in 1980. The dual lifts were the highest hydraulic boat lifts in the world for many years.

The Peterborough Lift Lock is a real-world example of multiple theories learned in the physics class in secondary school, including pressure and communicating vessels. Please note that it was not electric-driven 120 years ago. How amazing it is!

Location： 

Trent-Severn Waterway, Peterborough Lift Lock Visitor Centre

353 Hunter St E, Peterborough, ON K9H 7B5

Tips for visitors:

• There are two observation locations: (1) Visitor centre (from the bottom of the lift lock); (2) Cross the street, there are stairs to the top of the locks, or you may take the cruise boat. 

• 600-meter south of the Lock 21, you can find a swing railroad. 

• The Lock 20 is just located south of the swing railroad. 

• Lift Lock cruise departure at: 92 George St. North Peterborough. Here is the schedule. 

Photo: Xin Yi Zhang (2025)