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Operation of the Storm Surge Barrier

Wetted works (sill structure)

The sill structure on the bottom of the New Waterway has three functions:

  • The formation of a flat base and foundation for the retaining walls, which are positioned on the sill- blocks with the aid of fenders.
  • Cutting down the flow of water once the barrier is closed.
  • Holding in place the subgrade on which the blocks are based.

  1. Sill-blocks
  2. Bottom protection and filter-bed
  3. Dredging works
  4. Raking the surface
  5. Dumping the filter-bed