Well-designed mooring systems must satisfy the following good practices that have been established by generations of mooring system designers.

A good design is:

  • In accordance with the applicable Class requirements and other applicable standards.
  • Correctly designed, so it is fit for purpose.
  • Based on proven technology.
  • Avoiding discontinuities.
  • Minimising rope contact with seabed or other nearby structures.
  • Optimised: bigger does not necessarily mean better, e.g. thicker chain does not always make a mooring system stronger.
  • Based on a passive mooring policy i.e. no need for slackening (winching).
  • Incorporates an “as built” inspection and documents the “as built” system.
  • Appraising between designed and as built immediately post installation.
  • Taking corrective actions in case of differences between designed and “as built”.

Enforcing correct strategies for:

  • Inspection
  • Maintenance
  • Integrity
  • Slackening (if part of the system)
  • Rotation/refreshing of the topsides chain
  • Emergency response