The tower is a Grade II listed structure: 'It housed a hydraulic accumulator: a supplementary power source which was effectively a large pipe into which a good head of water could be pumped and stored until it was needed to operate the hydraulic rams which moved the bridge' http://www.britishlistedbuildings.co.uk/en-1404328-rolling-bridge-over-ulverston-canal-and
Uploaded to Geograph by Karl and Ali on 3 February 2013
Photo © Karl and Ali, 3 February 2013. Licensed for reuse under this Creative Commons licence