 The Monmouthshire Canal Navigation was extremely successful, and it obtained an Amendment Act in 1802, allowing it to make additional wharves on the banks of the River Usk to enable cargoes to be transferred to ships for export.The canal was to be extended a mile and a quarter down the river from Llanarth Street, the original termination, to Pillgwenlly; the cost was said to be £100,000.Work was begun in 1806.