Section 3.10: Site Plans and Technical Data - Rick Neufeld Comments

Northern Gateway Pipelines Inc.
Section 3.10: Site Plans and Technical Data
Table of Contents
Approaching the terminal, Douglas Channel runs relatively straight and maintains a fairly constant width
of approximately 2,700 metres. Assuming a two-way traffic lane 490 metres wide (7 times the beam
width of the maximum size VLCC) located in the middle of Douglas Channel, the separation between the
tanker berths and the edge of the navigation lane is approximately 1050 metres, providing sufficient room
for the maximum required turning basin. The separation between the tanker berths and the centreline of
the navigation lane is approximately 1300 metres, well in excess of the minimum requirements of 420
metres (6 times the maximum design ship beam) as given in the TRP guidelines.
Figure 2-3 Turning Basins, Navigational Clearances and Vessel Manoeuvres
2.2.2.2 Condensate Tanker Approach and Departure Manoeuvres
Inbound condensate tankers arriving in a loaded condition will normally berth with their port sides to the
unloading platform. This is advantageous as it allows for a straight arrival course as the vessel approaches
the terminal in its fully loaded condition as indicated by Vessel Manoeuvre #1 in Figure 2-3. Vessel
Manoeuvre #2 shows the condensate vessel will be required to make a 180 degree turn after departure
from the terminal, however, it will do so in the ballasted condition as opposed to a fully loaded condition.
Starboard-side berthing may be required for the condensate tankers depending on meteorological
conditions and preferences of the pilots, in which case the arrival and departure approaches will be the
reverse of that shown in Figure 2-3. Although Figure 2-3 shows the condensate tanker berthing at the
North Berth, the approach and departure vectors for the South Berth would be similar.
Page 2-4 FINAL - Rev. 0 January 20, 2010