Peterborough Lift Lock No 21

This is a lock with a rise of 65 feet.
C.N.R Swing Bridge | 1.29 miles | |
Little Lake | 0.88 miles | |
Ashburnham Lock No 20 | 0.66 miles | |
Maria Street Swing Bridge | 0.54 miles | |
C.P.R. Swing Bridge | 0.43 miles | |
Peterborough Lift Lock No 21 | ||
Norwood Road Bridge | 0.50 miles | |
Warsaw Road Swing Bridge | 0.97 miles | |
Nassau Mills Bridge | 3.31 miles | |
Rotary Greenway Trail Bridge | 3.50 miles | |
Trent University Footbridge | 4 miles |
One of only two hydraulic lift locks on the Trent-Severn Waterway, Lock 21 is the highest hydraulic lift lock in the world.
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Wikipedia has a page about Peterborough Lift Lock
The Peterborough Lift Lock is a boat lift located on the Trent Canal in the city of Peterborough, Ontario, Canada, and is Lock 21 on the Trent-Severn Waterway.
For many years, the lock's dual lifts were the highest hydraulic boat lifts in the world, raising boats 65 ft (20 m). This was a considerable accomplishment in the first years of the 20th century, when conventional locks usually only had a 7 ft (2.1 m) rise.
In the 1980s, a visitor centre was built beside the lock. It offers interactive simulations of going over the lift lock in a boat, and historical exhibits detailing the construction of the lift lock.
Residents and visitors skate on the canal below the lift lock in the winter.
The Peterborough Lift Lock was designated a National Historic Site in 1979, and was named an Historic Mechanical Engineering Landmark by the American Society of Mechanical Engineers in 1987.
The Trent-Severn has a similar hydraulic lift lock, the Kirkfield Lift Lock, at its summit near Kirkfield, with basins of the same dimensions, but which has a smaller vertical lift.