Permanent opening - western and eastern piers or moles

Year proposed



  Not implemented

Location description


Description of option

  A permanent opening through a western and eastern pier or mole - each extending from inside the estuary and through the shingle bank to seaward beyond low water mark - was proposed. See Designs/drawings attachment for more detailed description.

Opening, closing, and lake level control description

  Permanent opening.

Maximum discharge


Maintenance/Management description


Cost description

  1878 provisional cost (with 10% contingency):  69,657 pounds (or 88,093 pounds if full length of walls required).

Fish passage benefit rating


Potential running impacts or benefits

  Permanent open channel with a depth of at least 24ft at high water and 18ft at low water.