Notice to Mariners – FRC 4 (c) of 2014 – FORTH REPLACEMENT CROSSING SOUTH TOWER


No: FRC 4 (c) of 2014                                                                                                                 15 September 2014
NOTICE TO MARINERS
FIRTH OF FORTH
FORTH REPLACEMENT CROSSING
TAKLIFT 6
SOUTH TOWER – OCTOBER / NOVEMBER 2014

Introduction
Refer to Notice to Mariners FRC 04(a) / 2014 for full introduction to the Taklift operation.
Expected tower schedule will be subject to change, therefore daily updates regarding the position of the TAKLIFT 6 will be available from the FCBC Marine Controller via 07919 597 197. Latest information will be available throughout from FTNS.
South Tower
Attached are 2x chartlets depicting the mooring arrangement at the 2x positions to be undertaken around the South Tower mainly during the months of October / November. ‘Position 5’ refers to South Tower (North side) and ‘Position 6’ refers to South Tower (South side).
The mooring wires are colour coded to signify depth below the water surface as follows:
Green – deeper than 12m
Yellow – depth between 6m – 12m
Red – shallower than 6m
Note: these diagrams depict wire depths at Chart Datum. As the tide rises, the length of the green line would increase towards the barge.
Anchor tripping wires will be buoyed. Where the anchor is positioned in the channel, the buoy will be given sufficient wire along the seabed to enable the buoy to be off-set out-with the channel.

Position 5 – SouthTower (North side)
Anchor Position Wire 12m Depth Position Marker Vessel over 12m Position
(NW)
56° 0.273 N
3° 25.268 W
56° 0.141 N
3° 25.073 W
Vessels Outbound Main Channel
(NE)
56° 0.104 N
3° 24.282 W
56° 0.055 N
3° 24.703 W
Vessels Inbound Main Channel
(SE)
55° 59.875 N
3° 24.752 W
Does not achieve 12m N/A
(SW)
55° 59.957 N
3° 25.296 W
Does not achieve 12m N/A
Position 6 – South Tower (South side)
Anchor Position Wire 12m Depth Position Marker Vessel over 12m Position
(NW)
56° 0.199 N
3° 25.416 W
56° 0.026’N
3° 24.841’W
Vessels Outbound Main Channel
(NE)
56° 0.164 N
3° 24.49 W
56° 0.075’N
3° 25.227’W
Vessels Inbound Main Channel
(SE)
55° 59.843 N
3° 24.902 W
Does not achieve 12m N/A
(SW)
55° 59.922 N
3° 25.345 W
Does not achieve 12m N/A

Navigation
The 4x mooring wires to the barge will be bar tight and will extend beyond the existing FCBC exclusion zones.
All marine traffic is instructed to stay well clear of the Taklift barge and surrounding area during this operation, specifically out-with the ‘hatched’ temporary exclusion zone on the attached chartlets. FCBC guard vessels will be on station at all times to monitor approaching craft and intercept direction of travel where potential encroachment of mooring lines exists.
Rosyth Channel:
Not directly affected.
Main Channel:
1. NE & NW Mooring lines will be marked for the passage of vessels required to use the Main Channel, by a guard vessel positioned at the Northern extremity of the 12m depth position for the wires. This vessel will be positioned over the NE wire for vessels inbound, and over the NW wire for vessels outbound.
2. Single vessel passing in the Main Channel will apply, therefore approaching vessels will be timed not to pass each other in the Main Channel between Dhu Craig and 19 buoy.
3. A freeze on FCBC marine traffic at Central & South Tower will apply until approaching vessel is past and clear.
4. Vessels passing the barge during its lift phase must proceed at a minimum safe speed to keep their wash to a minimum, so as to least impact the lifting operation.
All timings will be managed directly between FTNS and FCBC Marine Controller.
Documents Attached
Position 5 – South Tower (North Side)
Position 6 – South Tower (South Side)
When viewing electronically – zoom in to reduce density of hatching and to see detail underneath. Density appears less when attachment is printed.
Status of previously published notices:
Nos FRC 01, 02 of 2011 remain in force
Nos FRC 23, 24 of 2012 remain in force
Nos FRC 2, 4 (a), 4 (b) of 2014 remains in force.
R BAKER
Chief Harbour Master

Capture5Capture6

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