| The whole of the soil of the isthmus is admirably adapted for the labours of canalisation. |
| Other major landscaping included the canalisation and culverting of the River Alyn, and the excavation of a complex of interlinked subterranean tunnels and caverns. |
| Artificial canalisation of the river here will have a major impact on wider flooding. |
| The river length is significantly shortened from the river's natural course due to a number of canalisation projects completed in the 19th and 20th century. |
| While schemes on a similar scale have been tried before for fresh water, this is by far the most ambitious seawater canalisation programme ever envisaged. |
| These projects had included the Cache Basin in Arkansas, which would have meant the canalisation of the river Cache, and the Central Valley projects in California. |
