We have images of the Restoration in Progress taken from March 2001 onwards. Click to see.

1875 Structure

	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/ .

1908 Structure

	The addition of the machinery deck brought the overall height to approx. 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

2001 Structure

	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