Dock walls

Sea Walls South of Canning Island, to Canning Island and North of Canning Island   
Circa 1844 
Grade II 

These sea walls were all built by Jesse Hartley in "Cyclopean" granite. That to the west of Albert Dock has two sets of stone steps, one at the south end and one half way along Marine Parade. 

This part of the wall is rounded and corbelled out in a series of curves to provide recesses for the steps. 

On the sea wall of Canning Island, visible only from a boat shortly after low water, is the inscribed stone marking 'Old Dock Sill', the datum level from which all heights and depths within the docks were measured. 

The north gate passage was closed in 1937 and sealed with a date stamped concrete wall, but the south passage remains operational and is a vital entrance into the South Docks system.   

Canning Half-Tide Dock Retaining Walls 
1844 
Grade II    

This dock was built on the approximate location of an earlier tidal passage into Canning Dock and is still essentially a passage, which can be entered or left at half-tide, now giving access to both Albert Dock and Canning Dock. 

However, the dock is wide enough for moorings along the north and south walls.