• The original structure is approximately 60ft high overall
• The difference in height between the two water levels is 50ft
• The Lift is 85ft in length
• The Aqueduct is 165ft in length
• The original structure is 49ft wide
• Each tank weighs 91 tonnes empty and 252 tonnes when full of water
• Each tank is 75ft long, 15'6" wide and 9'6" deep at the centre and will hold 2 narrow boats or 1 barge
• Edwin Clark, the designer of the lift, went on to design larger lifts on the Continent. The lifts at La Louviere in Belgium have a website at
http://voies-hydrauliques.wallonie.be/
• The addition of the machinery deck brought the overall height to approximately 80ft
• The addition of the A-Frames to support the machinery deck brought the width at the bottom of the Lift to 75ft
• Each tank was counterbalanced by 252 tonnes of cast iron counterweights attached by wire ropes
• There were 36 stacks of counterweights on each side of the Lift, each weighing 7 tonnes There were a total of 72 geared pulley wheels on the Lift
• The largest of the geared pulley wheels which take the lifting and safety ropes weigh 3.5 tonnes. There are 8 of these on each side, a total of 16
• There are a further 20 geared pulley wheels taking 2 lifting ropes each, and 36 geared pulley wheels with one lifting rope each
• The shafts bearing the pulleys are 8 inches in diameter
• The pulley pedestals weigh between 193 and 466lbs each
• The Lift has been restored to hydraulic operation
• The 1908 structure and pulley wheels has been retained as a static monument
• The replacement hydraulic ram shafts replicate the original 3ft diameter rams and are approximately 56ft long when retracted and l06ft long when fully extended
• The ram shafts are 56ft deep
• Each ram weighs approximately 50 tonnes
