The James Watt Dock Crane is a giant cantilever crane situated at Greenock on the River Clyde.
It was built in 1917 by Sir William Arrol & Co.[1] It was rated to lift 150 tonnes (150 long tons; 170 short tons), and is a category A listed structure.
[1][2] Apart from an adjacent derelict mobile Smith Rodley, it is the only crane left in the dock after the yards were cleared for redevelopment.
[3] The crane was used for the fitting out of ships.
[2]