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Grid Brief Document

Grid Brief
Vessels that have a tendency to pitch forward or aft are not suitable for these facilities.

Any work that would affect the ability of the vessel to float are prohibited on these facilities.
This includes but is not limited to:

  • Work to seacocks
  • Work to inlet valves
  • Removal of shafts
DHNA managed grid *
  • This grid has water but no electric.
  • The beam of the grid is 4.9m, however, the concrete pad is only approx. 3.5m wide.
  • This means that catamarans are not suitable for the grid.
  • The appropriate depth of water for the vessel to safely use the Dartmouth Grid is to be calculated by the master of the vessel, making sure the vessel can re-float and clear the grid on the following tide/s.
  • Dartmouth Grid dries at 2.2m Height of Tide (for example a 1.0m draft vessels can use the grid at above 3.2m HOT).
  • Do not attempt drying out on this facility in any significant swell.
  • This grid has water and electricity.
  • The appropriate depth of water for the vessel to safely use the Hoodown Grid is to be calculated by the master of the vessel, making sure the vessel can re-float and clear the grid on the following tide/s.
  • Hoodown Grid dries at 2.95m Height of Tide (for example a 1.0m draft vessels can use the grid at above 4m HOT).
  • Do not attempt drying out on this facility in any significant swell.
Checklist *
  • Fin keels will need to use the northern section of the grid that contains a concreted area.
  • Consider the width of the vessel
    • Beamy vessels may not be suitable
    • Catamarans are not suitable for either the Hoodown or Dartmouth grids.
*
Customer Declaration *

RA3003 Drying a vessel out

Tides 2025

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