Coral Protection – Puerto Caucedo

Planning and design

The EIA study advised the following mitigating measures to minimize environmental impact of the dredging works:

  1. Relocation of valuable coral communities;
  2. Water quality and current monitoring;
  3. Placement of two settlement basins and a silt screen;
  4. Discharge of reclamation water below the 40m depth contour to prevent sediment returning into the sea;
  5. Balance of cut and fill quantities so that no dredged material had to be disposed offsite;
  6. Use of split screens during the breakwater construction.

A thorough monitoring system of the water quality was installed (including turbidity, coral health and sedimentation rate) to ensure that these mitigation measures were effective.