Channel Deepening project overview

20 September 2021

  • Deepening the harbour and channel from the existing -14.5m (plus tide) to -16.0m (plus tide).
  • No extension of dredging – all within the existing channel limits.
  • Most material will be disposed of at sea in a licensed disposal area, about 22 miles offshore, in 50m of water.
  • Some material will be placed in beneficial projects such as Mersea Harbour Protection and a Little Tern nesting project at Horsey Island.

How much will be dredged?

Up to 26 Mm3 of stiff clay, sand and gravel, stone and soft mud.

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