In order to provide a definitive solution to the problem of harbor depth, work began in 1816 to extend the breakwater, which reached what is now the floating dike in 1882. However, a newly formed sandbank showed that even this was not sufficient, and the dike was enlarged once more, whilst an outer harbour wall was also built and the port mouth was moved to what is now the West Dock, or Moll de Ponent. [citation needed]