NAFSubclass

NAF 42.91YConstruction of marine structures and inland waterway

Subclass · Nomenclature d'Activités Française (2025)

Where 42.91Y sits

  1. F Construction
  2. 42 Civil engineering
  3. 42.9 Construction of other civil engineering works
  4. 42.91 Construction of marine structures and inland waterway
  5. 42.91Y Construction of marine structures and inland waterway

What 42.91Y includes

  • Construction and reconstruction, for example: • waterways, harbour basins, rivers, marinas • structures hydromechanical (for example, valves, locks, hydraulic lifts, wedges) • dams and dikes
  • The dredging of waterways (for example, port basins and rivers)

What 42.91Y excludes

  • The construction of pipelines under the sea, see 42.21Y
  • The laying of submarine cables, see 42.22Y
  • The project management related to civil engineering works, for the account of third parties, see 71.12Y

42.91Y in other systems

Looking up equivalents…