Remains of an old coal staith, a loading bay for barges, on the west side of Balk Lane bridge over the Calder and Hebble Navigation It served the former Hartley Bank Colliery, which closed in the late 1960s.
The curved parapet of the bridge was originally capped by gently curved coping stones to prevent the tow-ropes of horse-drawn barges getting snagged. At this bridge you could have turned around the barge – and filled it up at the coal staith – without disconnecting the tow-rope.
Further upstream to the west approaching Horbury Bridge the canal passes a cutting so on this stretch towed barges heading upstream and downstream must have had some way of passing each other.