The infrastructures which are specific to seaports are the works which :

• ensure the protection of internal areas of water against choppiness coming from the waves,

• permit the berthing and mooring of vessels,

• permit the transit of vessels between areas of water of different levels

• serve for the construction and repair of vessels.

These specific projects are :

• Dykes which ensure the protection of internal areas of water against choppiness coming from the waves,
• Quays, landing-stage or Ducs d’Albe, which permit the berthing and mooring of the vessels,
• Simple or chamber locks which allow the transit of vessels between areas of water of different levels,
• Dry docks and slipways which serve for the construction and repair of vessels.

Other infrastructures (terrepleins, highways, railways, waterways etc) are similar to those used elsewhere in Civil Engineering

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