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A wave screen or open piled breakwater is suited to

  • A.sites where the water is too shallow for any structure
  • B.sites requiring the complete exclusion of all incident wave energy
  • C.sheltered sites where only short period waves must be stopped
  • D.the most exposed ocean facing sites on any coastline

Answer: C

A partial barrier stops short waves while allowing longer ones to pass. It offers a small footprint and good water exchange in sheltered conditions. Footprint and flushing are both improved. Exposure is what limits where they can be used.

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