Notice to Mariners – FRC 4 (a) of 2014 – FORTH REPLACEMENT CROSSING COMMENCING WITH CENTRAL TOWER


No: FRC 4 (a) of 2014                                                                            2 September 2014
NOTICE TO MARINERS
FIRTH OF FORTH
FORTH REPLACEMENT CROSSING
TAKLIFT 6
COMMENCING WITH CENTRAL TOWER – SEPTEMBER 2014

Introduction
From the 1st September 2014 and for a period of approximately 3x months, the TAKLIFT 6 crane barge will be operating at the FCBC construction site. Whilst there the TAKLIFT 6 will undertake 10x lifts at each of the 3x Queensferry Crossing Towers – totalling 30x lifts over the 3x month period. Approximating to 2-3 lifts per week.
Expected order of activity is as follows:
September – Central Tower & North Tower
October – North Tower & South Tower
November – South Tower
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.
Each lift will occur over a 12 hour period. This will entail the TAKLIFT 6 departing the North Wall at Rosyth and proceeding to the appropriate tower. Upon arrival at the tower, TAKLIFT 6 will lay a 4x anchor mooring spread (taking approx 4 hours), will undertake the lift (taking approx 4 hours), and will retrieve the moorings before returning to North Wall Rosyth (taking approx 4 hours).
TAKLIFT 6 is a self-propelled crane barge, but will manoeuvre around the site under towage.
Central Tower
Attached are 2x chartlets depicting the mooring arrangement at the 2x positions to be undertaken around the Central Tower mainly during the month of September. ‘Position 3’ refers to Central Tower (North side) and ‘Position 4’ refers to Central 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 3 – Central Tower (North side)
Anchor Position Wire 12m Depth Position Marker Vessel over 12m Position
(NW)
56° 0.553 N
3° 24.999 W
Does not achieve 12m N/A
(NE)
56° 0.394 N
3° 24.376 W
Does not achieve 12m N/A
(SE)
56° 0.013 N
3° 24.243 W
56° 0.176’N
3° 24.492’W
Any vessel in Main Channel
(SW)
56° 0.262 N
3° 25.365 W
56° 0.298’N
3° 25.008’W
N/A
Position 4 – Central Tower (South side)
Anchor Position Wire 12m Depth Position Marker Vessel over 12m Position
(NW)
56° 0.504 N
3° 25.073 W
56° 0.469’N
3° 25.032’W
N/A
(NE)
56° 0.353 N
3° 24.312 W
Does not achieve 12m N/A
(SE)
55° 59.963 N
3° 24.407 W
56° 0.081’N
3° 24.586’W
Vessels Inbound Main Channel
(SW)
56° 0.153 N
3° 25.413 W
56° 0.186’N
3° 25.099’W
Vessels Outbound Main Channel

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:
Vessels will not be scheduled to arrive / depart the Port of Rosyth during Taklift operations.
Particular vessels may be scheduled to do so on a case-by-case planning basis.
Taklift operations will be scheduled around the Rosyth Ferry and other pre-planned vessel
movements.
Main Channel – Position 4 (Central Tower, South side) only:
1. SE & SW Mooring lines will be marked for the passage of vessels required to use the Main Channel, by a guard vessel positioned at the Southern extremity of the 12m depth position for the wires. This vessel will be positioned over the SE wire for vessels inbound, and over the SW 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 3 – Central Tower (North Side)
Position 4 – Central 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
No FRC 2 of 2014 remains in force.

R BAKER
Chief Harbour Master

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