This is the first time I've been able to walk through Underfall Yard in months; it's been closed during the lockdown, and it's really reminded me how much nicer the route around the harbourside is when it's open. Cumberland Road is just dull.

Apparently the electric motor that still winches ships up out of the water on this "heave-up" slip (patented 1819 by Thomas Morton of Leith) dates from 1924, when it replaced the previous hydraulic system. I've never been there to watch a ship be hauled up, but it regularly deals with things as large as the Matthew.

The listing has this to say:

Patent slip and quay walls. Mid C19, restored 1888. Granite and Pennant rubble. 1 in 14 inclined slip with rails and timber cradle on wheels, drawn by an electric winch. Quay walls extend approx 50m along frontage of the Underfall Yard. HISTORICAL NOTE: Built on land reclaimed behind Jessop's 1809 Overfall Dam, originally part of the c1850 Nova Scotia Yard, purchased by the Docks Committee in 1880. Capable of raising a load of 250 tons. (Lord J and Southam J: The Floating Harbour: Bristol: 1983-: 65).