At the bottom of the Hay inclined plane, a level section of canal ran alongside the river, heading eastwards. Initially there was a lock into the river, with a fall of but since tub-boats were unsuitable for use on the river, and river boats could not use the canal, it was soon found to be redundant, and filled in. A number of warehouses were built between the canal and the river, with small inclined planes leading from the warehouses to wharfs on the river.