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Trial Inter-array Cable Installation - Neart na Gaoithe Offshore Wind Farm



Neart na Gaoithe Offshore Wind Farm Limited (NnGOWL) are currently undertaking prelay trenching works along a number of inter-array cable routes within the Neart Na Gaoithe (NnG) Wind Farm Area, ahead of the installation of cables at a later date.As part of the trials a short section of inter-array cable has been installed by the Living Stone (call sign: PBXN). The section of trial inter-array cable is estimated to be buried and recovered by 4th October 2021


The section of cable is approximately 450m long and will be in place, until early October 2021, weather dependent. The section of cable is shortly to be buried and then fully recovered, as part of the trial. The trial is taking place directly within the proposed inter-array cable route. A subsequent notice to mariners will be issued to advise to its removal.

 

Mariners are advised that the section of cable has been placed on the violet cable circuit, close to turbine location NNGF08  

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Eastern Irish Sea Wind Farms - Monthly Notice To Mariners - Update



General Maintenance and Survey for Barrow, Burbo Bank, Burbo Bank Extension, Walney 1, 2, 3 & 4, West of Duddon Sands.


General Maintenance

Site Lighting and Marking Status Survey Jack-Up Vessel Other Works
Barrow (BOW) D03 and D08 extinguished N/A N/A

TP Maintenance

(500m safety distance requested)

Burbo Bank (BBW 01) All currently operational N/A N/A None
Burbo Extension (BBW 02) F01 extinguished N/A

Blue Tern

ROV Operations

Walney 01 and 02 (WOW 01&02) All currently operational N/A N/A

TP Maintenance

(500m safety distance requested)

Walney Extension (WOW 03 & WOW 04) (WOW Ext)

All currently operational N/A

Blue Tern

ROV operations

Wave Spotter Buoy

West of Duddon Sands All currently operational N/A N/A

None

 

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Galloper Windfarm - Defect of the Cable Protection System (CPS) inter-array cables



Please be advised that Galloper Windfarm will be carrying out remedial work in the North & South fields of Galloper Windfarm on the Cable Protect System at 20 locations. Work to commence 30 September to 10 October 2021 (excluding weather delays). Operating from the vessel ‘Glomar Worker’


Mariners are requested to remain a distance of 50m2 away from the assets

 

As cable exposure is a known risk at Galloper and across the offshore wind industry, we would remind Mariners of the safety   information found on the KIS-ORCA website ‘The risks of fishing near cables and renewable energy structures.’   https://kis-orca.org/safety/the-risks-of-fishing-near-cables-renewable-energy-structures/ 

 

To avoid crossing cables when towing equipment follow the cable corridors- locations of the cables can be found on the   Galloper awareness charts via KIS-ORCA. 

 

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Scientific survey, investigating cetaceans over the Malin Shelf



Survey “Cetaceans over the Malin Shelf” will be carried out from 03/10 to 10/10 in the Malin Sea region by the Galway-Mayo Institute of Technology (GMIT) and the Marine Institute onboard the R.V. Celtic Voyager. The aim of this work is to i) gather visual and acoustic data on the occurrence of cetaceans over the Malin Shelf, ii) collect oceanographic data across the area and iii) characterise the planktonic community associated to the Islay Front.


Passive acoustic monitoring using a towed hydrophone array will be carried out along a pre-defined transect line (see attachment for survey area).  A vertical CTD Rosette sampler and plankton net will be deployed at night at the locations within the attachment. All these operations are to take place within 80nm of the coast, from coastal habitats to the shelf-edge habitats.

 

The core aim of the proposed survey is to collect data on distribution and abundance of cetacean over the Malin Shelf, so far lacking, using a robust combination of visual (transect-line, JNCC protocol) and passive acoustic (PAM) survey techniques. Collection of oceanographic data (underway SST, salinity and chl-a measurements; vertical CTD profiles in selected location) and of information on lower trophic levels (zooplankton sampling) will allow a multi-disciplinary, ecosystem-based approach and maximization of the shiptime opportunity. Noise recordings will be collected along the survey to describe ocean soundscape, map and quantify anthropogenic noise in the area (MSFD standards).

 

This project brings together research institutes from the Republic of Ireland (GMIT) and Northern Ireland (AFBI, Ulster University). The goal is to cooperatively and coherently built knowledge in a cross-border area of shared interest, while providing opportunity for early career scientist to gain experience in project leadership and complement their previous experiences of ship-based research.

 

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Dogger Bank Wind Farms (A & B) - Nearshore Intervention Works



The Jack-up Barge Haven Seariser 4 and the backhoe dredger Abeko 2 will be carrying out dredging activities. Haven Seariser 4 will expose the four HDD exit points and form entry pits. Abeko 2 will excavate two pre-cut trenches for DBA and DBB cable route corridors


The Abeko Server 2 Will carry out dredging activity to form two pre-cut trenches for DBA and DBB cable route corridors using the on-board long reach excavator. There will be spoil management activities being carried out throughout, to ensure the soil heaps don’t reduce the water depth by more than a statutory 5%. She will be carrying out the excavation activities on DBA and DBB during the night. The duration of these works is estimated to be seven days. See fig 2 below.

 

The Haven Seariser 4 will also remain on site 24 hrs during operations, unless threatened by extreme weather, continuing diving operations. These may be carried out in the hours of darkness. A short safety message will be broadcast on CH16 advising of diving operations starting and ceasing.

 

The MTS Valour will be anchored in the field during the nearshore activities. She will remain on station/site during the night and manned 24 hours throughout. The MTS Valour will provide assistance during diving operations and any barge movements required.

 

The RHIB Celtic Mara will be carrying out Multi-Beam Echo Sounder (MBES) surveys of the seabed and along the pre-cut trenches throughout the dredging activities. The survey gear will be positioned on a side mounted pole and extended into the water. Celtic Mara will transit daily from Bridlington Harbour to the Haven Seariser 4 and Abeko Server 2

 

During survey operations the Celtic Mara will be restricted in her ability to manoeuvre. It is requested that all vessels give the Celtic Mara a 500m safety clearance zone and reduce speed when passing. She will display the appropriate lights and day shapes.

 

During dredging and diving operations it is requested that The Abeko Server 2 and Haven Seariser 4 be given a 500m safety clearance zone. Diving flag ‘Alpha’ and the appropriate lights will be displayed during diving operations.

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Unexploded Ordnance Disposal - Seagreen Offshore Wind Farm



The disposal of four items of unexploded ordnance will be conducted within the Seagreen offshore wind farm site boundary. During this operation noise monitors will be placed on the seabed. Seaway 7 will conduct the disposal of 4 items of unexploded ordnance located within the Seagreen Wind Farm site boundary.


The survey vessel Glomar Worker will embark an explosive ordnance disposal team and are expected on site to conduct the works on or around the 21st of September. The disposal works are expected to be complete within 4 days weather conditions permitting. Depending on the nature of the ordnance differing disposal methods may be employed. Noise monitors will be placed on the seabed as part of the disposal process, coordinates of these monitors are below Any required detonations will take place during daylight hours, the Glomar Worker will commence hourly warning broadcasts four hours prior to any detonations, a final broadcast will be made 10 minutes before execution.

 

Glomar Worker will monitor the area for the safety of other vessels, it is requested that all vessels give the operations in excess of 1 nautical mile clearance during disposal operations.

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Unexploded Ordnance (UXO) Survey - Sofia Offshore Windfarm Export Cable



Unexploded Ordnance (UXO) & Archaeological Target Identification Works are due to commence on 17th September 2021 within the Sofia Offshore Windfarm Export Cable Route (ECR) Areas. These works involve; Identification of Potential UXO’s by Remotely Operated Vehicle (ROV) and Archaeology Investigations within the ECR Areas. Any threat targets identified will be marked and an updated Notice to Mariners will be published.


The work site is located East of Redcar and North of Saltburn-by-the-sea and extends approximately 13km from the beach. No explosive ordnance disposal operations (EOD) will be conducted at the site during 2021. Voe Vanguard call sign:MBEN9 will be supported by the guard vessel 'Precision 1'. call sign: 2FCD2. 

 

As part of the operations a Met Buoy will be deployed. 

 

 

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Unmanned Surface Vessel Cable Route Survey - Irish Sea



Operations of a remotely piloted Uncrewed Surface Vessel (USV) are planned in the Irish Sea. Dates: Monday 27th September 2021 for up to 10 days until 6th October 2021. The USV will be mobilised from Whitehaven Marina, where it will transit to/from the area of operation. During the operation the USV will be performing a Hydrographic Survey.


A support vessel will escort the USV throughout the operations from the harbour entrance and will then continue transiting towards the survey site until the area is safe & clear of hazards.

 

It is requested that other vessels remain clear, so far as is practicable, during transit & survey operations.

 

Although the vessel is uncrewed, it is managed throughout the 24hour operation piloted remotely using 360 degree cameras and other navigational aids.

 

The USV sends real time images and situational awareness data over satellite to a team of operators keeping watch and controlling the vessel remotely 24/7.

 

Safety Precautions: The USV is equipped with the following to make it conspicuous to other marine traffic:

  • AIS
  • Navigation Lights & Sound Signal
  • Active Radar Reflector
  • Superstructure Painted Yellow

 

Seafarers are asked to avoid contact with the vessel and be aware of the operational area during this period.      

 

 

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Hazard UXO - Circle North 2



Confirmed Unexploded Ordnance discovered close to the Circle North 2 Cable in 32m depth of water. Dimensions 670mm(L) x 280mm(W). UXO Safety Procedures Actioned a 50m Radius Exclusion Zone.


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WTG Installation and Commissioning - Moray East Windfarm



Moray Offshore Windfarm (East) shall commence WTG installation on the previously installed jackets. WTG’s will be installed by the JUV Blue Tern. Once the WTG’s have been installed Acta Centaurus will transfer teams of technicians using a walk to work system to carry out commissioning works in readiness for energisation. Acta Centaurus will be supported by 2 CTV’s (HST Harri and Njord Forseti). Installation and commissioning works will commence circa 5th January 2021 until completion.


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Seagreen Export Cable nearshore protection works



Nearshore export cable protection works will take place at the Seagreen Offshore Wind Farm export cable landfall site at Carnoustie, Angus. The placing of rock bags on the seabed to act as temporary moorings to assist the installation vessels has now been completed. Work will now commence on the tow of 3 self-submersible pipes from Dundee harbour and installation at the export cable landfall site.


On behalf of Seagreen Wind Energy Ltd, Nexans Norway Dykkerteknikk AS will deliver nearshore export cable protection services and diving assistance in preparation for the pull-in of three export cables at the Carnoustie export cable landfall site. The export cable works are divided into 4 campaigns with an estimated completion date of the end of February 2022.

The first campaign is to install and trench 3 self-submersible cable protection pipes. Spool pieces have been connected to the three export cable ducts. 3 self-submersible cable protection pipes will now be connected to each of the export cable ducts. The three self-sub cable protection pipes will then be trenched awaiting export cable pull-in at a date to be confirmed. 

 

Installation activities and diving operations will take place from the MPV Sophie. The tug Cormorant and Multi Cat Aileen M will assist in the towing of the self-submersible cable protection pipes from Dundee and installation works at the landfall site at Carnoustie Beach.

The MPV Sophie, Cormorant and Aileen M are expected to commence installation and diving activities on or around Monday 06th September although this may be delayed due to weather conditions.

Temporary rock bag moorings have been placed on the seabed to be used during the selfsubmersible cable protection pipe installation and export cable pull-in. These temporary moorings will be surface marked by day-glo pellet buoys.

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Viking Link Project - Post-lay Installation Placement Works



Mariners are advised about post-lay Rock Placement works planned for the first section of the cable route, Campaign 1, planned for the Viking Link project which is a HVDC electricity transmission interconnector between Denmark and England, a joint venture between National Grid and Energinet. The Campaign 1 post-lay Rock Placement works covered by this notice are in UK waters and are planned to commence on the 12th September 2021 with expected completion by end of October 2021.


The post-lay Rock Placement for Campaign 1 is planned in the following areas:

  • Where pre-existing cables and pipelines are crossed by the Viking Link cable route
  • Where it’s requested rock placement for cable protection

The dynamic positioning system onboard will keep the vessel in position in order to progressively and accurately install the rock in the planned locations.

The Campaign 1 post-lay Rock Placement works are being managed by Prysmian PowerLink carried out by DEME Boskalis JV using the following vessels:

  • DPFPV Rockpiper call sign: 5BML3

The works covered within this Notice to Mariners (NtMs) are divided in the following activities planned to take place from:

  • Cable lay 17th September – 10th October 2021
  • Cable Burial 25th September – 4th December 2021

The route length of the main HVDC interconnector (2x bundles power cables + 1x Fibre Optic Cable) is in the order of 620km. The work covered by this NtM is covering the second campaign of 106km in length, starting from the end of the first campaign recently installed from the UK landfall, which encompassed the first 51km section

The Cable Lay works are being carried out by: Prysmian PowerLink using Leonardo da Vinci (IMO 9857315; MMSI 247415300; Call Sign IJVJ2).

 

The Cable burial works are being carried out by: Asso.subsea using Aethra (IMO 9181481; MMSI 212466000; Call Sign 5BHH4) using the trenching tool AssoTrencher IV and the Argo (IMO 9523366; MMSI 209023000; Call Sign 5BDF3) using the jetting tool AssoJet III and trenching tool AssoTrencher IV.  

 

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Survey - Morgan (North) & Mona (South) - Eastern Irish Sea



Geophysical work is now complete, approximately 7 days left of geotechnical and environmental (benthic) survey of the proposed Morgan North and Mona South Offshore Wind Farm - Using vessel Ocean Resolution call sign : 3EIPG. The estimated completion date of the survey works is 23rd September 2021.


The survey involves the use of 2DUHR (sparker) equipment, Sub-bottom Profiler (SBP), Sidescan Sonar (SSS) and Magnetometer equipment, some of which will be towed approximately 150 m astern of the vessel, during July and August. Drop-down camera and grab samples will be collected at approximately 90 locations during this period and into August/September and Cone Penetration Tests (CPTs) will be undertaken at up to approximately 40 locations during September.

 

The survey will cover the main offshore array areas, plus 3km buffer, with initial 2km line spacing (later infilled to potentially 250m spacing at some locations). The survey vessels will start in the northern polygon initially to acquire a coarse grid of data across the site, before returning to infill where required. Sparker tests will be run to begin with in discrete areas.

 

All vessels are requested to maintain a safe distance (1nm) from the survey vessel Ocean Resolution at all times. Vessels will display appropriate shapes and lights when surveying.

 

Outline Programme of works

Activity Start Date End Date
Drop-down camera and grab sampling 12/07/21 23/09/21
Cone Penetration Tests (CPTs) 01/09/21 23/09/21

 

 

An Offshore Fisheries Liaison Officer (OFLO) will be present aboard the survey vessel – see details below. Any at sea, operational issues should be directed towards the OFLO in the first instance.

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Dropped moorings within the proposed Erebus Site



Recovery of the Wave Buoy was undertaken at the proposed Erebus site, however during recovery of the wave buoy the mooring system was lost. An attempt to recovery a damaged mooring, currently located within the proposed Erebus site, was unsuccessful.


Recovery of the Wave Buoy was undertaken at the proposed Erebus site, however during recovery of the wave buoy the mooring system was lost. 

 

An attempt to recovery a damaged mooring, currently located within the proposed Erebus site, was unsuccessful. 

 

The first 15 m from the upper moorings have been recovered. The remaining mooring components start from the 38 mm x 20 mm seasteel to the anchor weight on the seabed.

 

 

Wave Buoy Mooring (Approx. Location)

Damaged Mooring (Approximate Location)

Easting Northings

319285.93

5706027.30

318094.17

5704520.31

Degrees Minutes Seconds

51°28'35.40"N

05°36'08.40"W

51°27’45.29”N

5°37’7.32”W

Decimal Degrees

51.476500

-5.602333

51.462581

-5.618700

Degrees Decimal Minutes

51°28.590‘N

5° 36.140‘W

51º27.755”N

5º37.122”W

 

It is recommended that mariners remain vigilant of the moorings and make note of the approximate mooring locations.

 

A further attempt to recover the damaged mooring and lost mooring is expected to occur. A further NtM will be issued once details of the recovery attempt are known.

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Deployment of 3 x ADCP monitoring equipment - off St. Catherine's Point, South of the Isle of Wight



As part of the Perpetuus Tidal Energy Centre (PTEC), European Marine Energy Centre (EMEC) will be deploying three ADCP units in close proximity off St. Catherine's Point, South of the Isle of Wight. Due to the nature of the deployment each unit will be considered as a navigational hazard. Care should be taken when navigating around the below positions.


Each unit will be laid in a string with a sinker at each end of the ADCP.  Each sinker will have a Polysteel riser line attached to it with a small yellow 250mm pickup bouy and float connected.  These buoys will be visible during slack tides and subsurface during the rest of the tidal cycle.

 

ADCP Positions:

Location ID Lat Long
1 50° 32.90802’N 001° 16.52784’W
2 50° 33.11514’N 001°16.63824’W
3 50° 33.02784’N 001°16.47804’W
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Construction of wind farm - Moray East



Due to the construction of the Moray East Offshore Wind Farm, there are several elements to this notice - safety zones; construction schedule; and buoy positions.


For background information about Moray East, please visit: www.morayoffshore.com/moray-east

 

Safety Zones

Please be advised that the Scottish Ministers have authorised the use of the safety zones during construction and operation of the Moray East Offshore Wind Farm as detailed below.

 

During construction

  • A 500 metre radius around each WTG and OSP where construction works are taking place that include sensitive activities being undertaken by vessels RAM. A maximum of three of such zones is permitted at any one time. 
  • A 50 metre radius around partially completed WTGs and OSPs where work is not underway and the risk assessments identify a need. 
  • A 50 metre radius around each completed WTG and OSP prior to commissioning and as required by a risk assessment process. 

During major maintenance

  • A 500 metre radius around all major maintenance works being undertaken around the WTGs and OSPs. No more than one major maintenance zone is permitted at any one time.

Construction Activities

It is currently anticipated that weather permitting offshore construction works will be carried out on a continuous basis (i.e. 24 hour working, seven days a week) unless notified otherwise.

 

Please be aware that by virtue of its mode of operation and the equipment deployed, construction vessels listed in the table below may be Restricted in their Ability to Manoeuvre as defined under COLREGS (International Regulations for Preventing Collisions at Sea 1972, Rule 3). Masters of vessels are therefore requested to maintain their vessels and gears at a minimum safe distance from these vessels of 500 metres when they are undertaking it work and showing the appropriate shapes and lights.  Further Notice to Mariners will be issued as construction progresses.

 

  •  
 

Company,

Vessel &

Call Sign

Survey Area

Survey Area

Start Timeframe & Duration

GV Replenish

MASY7

As above

As above

1st May 2019 for approximately 34 months

GV BOUNTIFUL

MJLF4

As above

As above

30th April 2020 for approximately 20 months

NSL Challenger

As above As above 13th April 2021 until further notice

Windcat19

2ATD3

As above As above 20th August 2020 Until further notice

GV Kinnaird 

GHNE

As above

As above

16th July 2020 Until further notice

Acta Centaurus

As Above As Above 21st January 2021 until further notice
HST Harri As above As above 28th January 2021 Until further notice
Windcat 40 As above As above 4th Feb 2021 until further notice
Esvagt Wind 8 As above As above 2nd July 2021 until further notice
Njord Forseti As above As above 04th June 2021 Until further notice
Blue Tern As above As above 30th April  2021 until further notice
Esvagt Alba As above As above

2nd July 2021 until further notice

 

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Construction of Wind Farm - Triton Knoll



Activities are continuing related to the development of the Triton Knoll wind farm, as detailed below. For background information visit: http://www.tritonknoll.co.uk/


 

Mariners are advised that the following vessels continue to be active at the Triton Knoll Offshore Wind Farm as outlined within previously issued NtM's:

 

The following vessels continue to be active at the Triton Knoll as outlined within previously issued NtM's 

Vessel Name

Type

Call Sign

MMSI

IMO

Operating Port

Commence Date

Seacat Intrepid

Crew Transfer

2HWU6

235107284

N/A

Grimsby

02/01/2020

Esvagt Froude

Service Operations Vessel

OWWN2

219590000

9703461

Grimsby

02/02/2020

Esvagt Wind 1

High Speed Craft

XPE6305

219019815

N/A

Esvagt Froude

02/02/2020

Seacat Courageous

Crew Transfer Vessel

2IDC8

235108711

N/A

Grimsby

25/04/2020

Windcat 11 Crew Transfer Vessel 2BIS9 235066459 N/A Grimsby 14/12/2020
Pacific (Wind) Osprey Wind Turbine Installation Vessel 5BUF3 210286000 9621704 Able Seaton 10/01/2021
Acta Orion Service Operations Vessel PCEN 244830883 9750268 Immingham 15/01/2021
HST Euan Crew Transfer Vessel MGQO3 232025959 9883974 Grimsby 15/01/2021
World Mistral Crew Transfer Vessel OWJT2 219018009 9681302 Grimsby 15/03/2021
Normand Fortress Service Operations Vessel LIKW3 258537000 9371218 Grimsby 15/03/2021
Afon Las Buoyage Maintenance Vessel 2JEM8 235115261 9547398 Hull 19/04/2021
Afon Cefni Buoyage Maintenance Vessel 2FYX2 235095403 9258181 Hull 19/04/2021
Seacat Enterprise Crew Transfer Vessel MAPS9 232006483 N/A Grimsby 25/04/2021
Windcat 44 Crew Transfer Vessel MFAA3 232021363 N/A Grimsby 09/08/2021
Esvagt Havelok Service Operations Vessel OYFR2 219026496 9878981 Grimsby 25/09/2021

  Rover Alpha                  Guard Vessel                                MLAS2       235010380   8959817   Grimsby               25/08/2021

 

All vessels can be contacted via VHF channel 16 when operational in field.

 

Construction activities carried out over the previous 7 Days:

  • Ongoing activities at Offshore Sub Station Platforms East & West continues.
  • Ongoing activities at Offshore foundations continues.
  • Wind Turbine Generator Installation & Commissioning and Service continues infield (87 WTG's currently installed - 13th September 2021).

Construction Activities planned for the next 7 days:

  • Ongoing activities at Offshore Sub Station Platforms East & West continues.
  • Ongoing activities at Offshore foundations continues.
  • Wind Turbine Generator Installation & Commissioning and Service continues infield.

 

*** Note ***

 

Application of Triton Knoll Wind Farm Safety Zones During Construction

The Secretary of State has granted the Application of Safety Zones on the Triton Knoll Wind Farm Project as follows:

  • 500m “rolling” safety zones around any structure where construction is being undertaken (as indicated by the presence of construction vessels).
  • 50m pre-commissioning safety zones surrounding partial structures or completed structures prior to commissioning.
 

 

Demarcation Buoys

Partrac Ltd have deployed x12 Demarcation Buoys and x2 Metocean Buoy at the Triton Knoll Offshore Wind Farm (TKOWF) to mark the perimeter of the TKOWF site boundaries.

 

Vessels are requested to leave a wide berth during the installation operations. The buoys will be deployed for a period of two years, and all equipment will be removed at the end of the installation.

 

Buoy

Structure

Latitude

Longitude

Individual Specification

TK01

South Cardinal

53°24.054'N

000°57.935'E

Pillar shaped with a south cardinal shaped top mark, exhibiting a Q (6) + L Fl 15s light character (5 nm nominal light range)  RECOVERED

TK02

Special Mark

53°24.568'N

000°54.433'E

Pillar shaped with a yellow ‘x’ shaped top mark, exhibiting a Fl Y 5s light character (5 nm nominal light range)

TK03

Special Mark

53°26.132'N

000°50.008'E

Pillar shaped with a yellow ‘x’ shaped top mark, exhibiting a Fl Y 5s light character (5 nm nominal light range)

TK04

Special Mark

53°27.457'N

000°45.927'E

Pillar shaped with a yellow ‘x’ shaped top mark, exhibiting a Fl Y 5s light character (5 nm nominal light range)

TK05

South Cardinal

53°28.859'N

000°41.181'E

Pillar shaped with a south cardinal shaped top mark, exhibiting a VQ (6) + L Fl 10s light character (5 nm nominal light range)   RECOVERED

TK06

Special Mark

53°30.807'N

000°41.826'E

Pillar shaped with a yellow ‘x’ shaped top mark, exhibiting a Fl Y 5s light character (5 nm nominal light range)

TK07

North Cardinal

53°32.196'N

000°44.248'E

Pillar shaped with a north cardinal shaped top mark, exhibiting a Very Quick (VQ) light character (5 nm nominal light range)

TK08

Special Mark

53°32.444'N

000°47.678'E

Pillar shaped with a yellow ‘x’ shaped top mark, exhibiting a Fl Y 5s light character (5 nm nominal light range

TK09

North Cardinal

53°32.428'N

000°52.040'E

Pillar shaped with a north cardinal shaped top mark, exhibiting a Q light character (5 nm nominal light range)

TK10

Special Mark

53°29.595'N

000°55.306'E

Pillar shaped with a yellow ‘x’ shaped top mark, exhibiting a Fl Y 5 second (s) light character (5 nm nominal light range)

TK11

Special Mark

53°26.979'N

000°57.974'E

Pillar shaped with a yellow ‘x’ shaped top mark, exhibiting a Fl Y 5s light character (5 nm nominal light range)

TK12

East Cardinal

53°24.368'N

001°00.228'E

Pillar shaped with an east cardinal shaped top mark, exhibiting a Q (3) 10s light character (5nm nominal light range)

TK13

Metocean Buoy

53°26.002'N

000°55.091'E

Triaxys metocean wave and current buoy (South) exhibiting a Fl (5) Y 20s light character (3 nm nominal light range)

TK14

Metocean Buoy

53°30.581'N

000°47.944'E

Triaxys metocean wave and current buoy (North) exhibiting a Fl (5) Y 20s light character (3 nm nominal light range)

 

Mariners are advised that all foundations monopiles have been installed and all inter-array and export cables have been installed.

 

Local Notice to Mariners Recently

NtM 001-2021 (05th January 2021)

NtM 002-2021 (20th January 2021)

NtM 003-2021 (17th March 2021)

NtM 004-2021 (24th March 2021)

NtM 005-2021 (06th April 2021)

NtM 006-2021 (16th April 2021)

NtM 007-2021 (18th May 2021)

NtM 008-2021 (29th June 2021)

NtM 009-2021 (29th July 2021)

NtM 010-2021 (20th August 2021)

 

Navigation Warning - 08th January 2021

 

Mariners are advised that the remnants of a Wave Rider Buoy sinker weight and partial rigging are located within the Triton Knoll Offshore Wind Farm Construction site at the following location;

 

53° 30.442N 000° 50.564E

 

It is advised that the partial rigging could potentially be floating up to 9.7m above the seabed, reducing the navigable safe water in the immediate area to 10m LAT.  Mariners are advised to avoid the indicated position by 250 metres.

 

Possible Dangers to Navigation - Properties of the polypropylene show that the rope is buoyant, this makes the line sensitive for thruster currents. Taking the site water depth into consideration (19.7m LAT) and the maximum expected height above seabed of the rope 9.7m the line is expected to be floating submerged at approximately -10m LAT. In addition, it is noted that over time sediments will be trapped between the fibres and the heavier rope may finally sink. The polypropylene rope may impose a risk to foul propellers / propulsion of vessels due to the buoyant nature of the rope. As the rope is submerged at a depth of ~-10m LAT the risk is considered minimum for vessels with a shallow draught (<5m) and medium for a vessel with a deeper draught (>5m). Over time sediments will be trapped between the fibres and the heavier rope may finally sink thereby reducing the risk to propellers/propulsion of vessels. The clump weight itself (chain) is expected to have sunk into the seabed and has no significant height above seabed. In addition, the edges of the clump weight are mostly rounded (chain), the risk the clump weigh imposes to fishing activities/gear is therefore considered to be minimal.

 

Navigation Warning - 16th March 2021

 

Mariners are advised that two UXO targets have been confirmed within the Triton Knoll Offshore Wind Farm Array.

 

Mariners are advised that the two confirmed targets are located within 20 metres water depth (LAT) and a 10 metre radius exclusion zone is required around each target.  The following table provides the coordinates and a description for each target.

 

Description of Target Latitude Longitude

Water Depth

(LAT) Metres

Required Exclusion

Zone (Metres Radius)

Archaeological - The item is thought to be an air-delivered bomb.  It appears to be in a stable condition and is resting on the seabed.  Marine growth and concretion cover the body, indicating it has been in situ for a significant duration. The tail section of the bomb is missing, which is typical of unexploded bombs from WWII found in these circumstances and there is a significant hole in the case. The dimensions and characteristics gathered are consistent with a 500kg German bomb. Considering the state of the bomb the Net Explosive Quantity of the bomb is likely to be <5kg. 53°31'50.249"N 00°47'45.908"E 20 10
Archaeological - The item is thought to be an air-delivered bomb.  It appears to be in a stable condition and is resting on the seabed.  Marine growth and concretion cover the body, indicating it has been in situ for a significant duration. The tail section of the bomb is missing, which is typical of unexploded bombs from WWII found in these circumstances and there is a significant hole in the case. The dimensions and characteristics gathered are consistent with a 500kg German bomb. Considering the state of the bomb the Net Explosive Quantity of the bomb is likely to be <5kg. 53°31'49.895"N 00°47'45.115"E 20 10

 

Navigation Warning - 25th May 2021

 

 

Mariners are advised that during a Man Overboard Recovery drill a “Dead Fred Casualty” was subsequently lost, presumed sunk to the seabed in the following position;

 

Latitude - 53° 30.27’N

Longitude - 000°40.55’E

 

Water Depth – 79m LAT

 

If the object is recovered, please contact the following in the following order.

  • Triton Knoll Marine Coordination Centre:
  • Email – tkmcc@smchse.com
  • Tel – 0045 82 13 62 19
  • Lee Cornwell - External Consultant – Marine Operations
  • Email - l.cornwell@tritonknoll.co.uk
  • M: +44 (0)7384 807293
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Subsea Electricity Cable - Skye-Harris



Global Offshore (on behalf of SHEPD) will be conducting nearshore surveys of the installed Skye – Harris cable. These operations will be confined to areas at both landfalls out to approx. the 20m depth contour. Operations are anticipated to be conducted between the 13th-19th September 2021 subject to weather conditions near the cable landing points. Works will encompass an ROV video survey with the aid of an LBV ROV and a mini USBL system using vessel Delta 9151 call sign: MCVE3


No fishing gear clearance is required although as the vessel will be limited in maneuverability other vessels should maintain an appropriate and safe distance when passing the vessel undertaking survey works and should pass at the lowest speed to avoid vessel wash effects.  

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Unexploded Ordnance & Boulder clearance - Seagreen Offshore Windfarm



An unexploded ordnance and boulder clearance geophysical survey will take place within the Seagreen Offshore Windfarm site boundary.


The survey vessel, Geo Ranger has now left the project. A replacement vessel, Kommador Iona will utilise towed array equipment with side scan sonar, sub bottom profiler and magnetometer to conduct the survey of the remaining Wind Turbine Generator positions within the Seagreen site boundary.The survey vessel is expected to arrive at site on or around Wednesday the 14th of July. Seagreen Notice to Mariners 03-21 revision 4 refers.

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Shallow Burial - East Anglia One Export Cable Route



East Anglia ONE Offshore Windfarm request all vessels to strictly follow a 250m exclusion zone around EA1 Export Cables when dropping anchor or using fishing equipment in the following areas due to shallow burial.


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Survey - Race Bank Export Cables



A-2-Sea Solutions will be carrying out ROV inspection operations along the Race Bank Offshore Wind Farm export cable routes. The survey will extend along the Race Bank export cables from KP 4.5 to KP 29.0. Survey operations are expected to commence from 8th September for a period of 2-3 weeks. Survey work will be undertaken onboard the vessel Noortruck Call Sign: DFRY


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Survey - Lincs Offshore Windfarm export cables



A-2-Sea Solutions will be carrying out ROV inspection operations along the Lincs Offshore Wind Farm export cable routes. The survey will extend along the Lincs export cables from KP 7 to KP 30. Survey operations are expected to commence from 8th September for a period of 2-3 weeks. Survey work will be undertaken onboard the vessel Noortruck call sign: DFRY.


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Sanday - Eday subsea cable installation



A new subsea electricity cable between Spurness (Sanday) and London Bay (Eday) has been installed. The cable is surface laid in proximity to the previous and now out of service cable.


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Eday - Westray subsea electricity cable installation



A new subsea electricity cable has been installed between Fersness Bay (Eday) and near Point of Geldibist (Westray). The cable is installed on the seabed in proximity to the previous and now out of service cable


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Cable Repair - Pentland Firth East Cable



Repair operations have commenced on the Pentland Firth East electricity cable. Mariners are advised that during these works the cable and temporary clump weights may be on the seabed or buried but with limited depth of cover.


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Wave Buoy Deployment - London Array Offshore Wind Farm



A Wave Rider Buoy will be deployed onsite from 24th September until further notice as part of ongoing monitoring of offshore conditions to support operations. Spectrum Offshore will be engaged to deploy the buoy. Description of wave rider buoy: Yellow spherical buoy, transparent top dome with solar panels and flashing light. Weight: 197kg Size: 1.10m Diameter. The buoy is connected to a subsea weight on a surface line. Vessels are requested to always maintain a 250m clearance around the buoy.


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Cable Installation - Proposed Cross Channel Fibre



C/S IT INTREPID will be installing a commercial telecom cable system between Brighton, UK and Veules-Les-Roses, France. Operations will take place from 15th September 2021 through to 20th October 2021.


 Mariners are advised to use caution when transiting the area, and contact the C/S IT INTREPID on VHF Channel 16 should there be any information required.  Periodic announcements will be broadcast by the vessel on VHF Channel 16.

All vessels are requested to maintain a two (2) nautical mile Closest Point of Approach (CPA) and a 500m exclusion zone around the C/S IT INTREPID.

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Notification of Seabed Hazard at Location NNG-H17 - Neart na Gaoithe Offshore Wind Farm



Mariners are advised that the Saipem 7000 (S7000) has successfully completed recovery of the previously left equipment within the boundaries of the Neart na Gaoithe (NnG) Offshore Wind Farm. The operation was completed on 17th August 2021 and the S7000 has departed site.


Mariners are advised that the Saipem 7000 (S7000) has successfully completed recovery of the previously left equipment within the boundaries of the Neart na Gaoithe (NnG) Offshore Wind Farm. The operation was completed on 17th August 2021 and the S7000 has departed site.

 

The equipment has been recovered from Wind Turbine Generator (WTG) location NNG-H17, however, a small section remains within the drilled socket.  This section protrudes approximately 3.1m above the level of the seabed, at the location specified in Table 6, and is to be cut at a later date.

 

The installed cardinal buoy, as notified in NtM 154 has been removed.

 

Vessels Associated with the Activity

One guard vessel is currently within the wind farm site. The guard vessel will be one of the below, which can be contacted as follows, if required:

Vessel name:

Seagull

Vessel role:

Guard Vessel

Call sign:

MVBO2

On board contact:

Contact name: Vessel Master

Email: seagullbf74@gmail.com

Phone: +44 (0) 1261 878040 / +44 (0) 7895 919100

 

Vessel name:

Artemis

Vessel role:

Guard Vessel

Call sign:

MVIX5

On board contact:

Contact name: Vessel Master

Email: concordebf47@aol.com

Phone: +44 (0) 7949 663790 / +44 (0) 1261 455461

 

 

Vessel name:

Tranquillity S

Vessel role:

Guard Vessel

Call sign:

MJUH9

On board contact:

Contact name: Vessel Master

Email: spousekeil@yahoo.com 

Phone: +44 (0) 1346 454758

 

 

 

 

General Safety Advice

Construction activities are ongoing within the boundaries of the Neart na Gaoithe Offshore Wind Farm.  Mariners are advised to refer to the NnG Weekly Notice of Operations where up to date information regarding activities on site is broadcast. A copy of this notice and the Weekly Notice of Operations can also be found at https://nngoffshorewind.com/resources/

 

Marine Coordination Contact Details

The following contact can provide more information if required. Please note that specific queries can also be addressed to the relevant vessel or shore-based representative.

 

Table 7 - Marine Coordination Contact Details

Telephone number (daytime):

+44 (0) 1890 751415 (use Emergency contact only until further notice)

Emergency contact (24/7):

+44 (0) 7508 421406

Email:

nng.mc@smchse.com

Address:

NnG Offshore Wind Farm Marine Coordination Centre, Gunsgreen Basin, Eyemouth, TD14 5SD

 

Fisheries Liaison

Fisheries liaison associated with the activity will be co-ordinated by Natural Power. For any commercial fishery queries please contact the NnG company Fisheries Liaison Officer (CFLO) Peter Berney, telephone: +44 (0)7391 402387 or email: NnG.FLO@naturalpower.com.

 

Distribution List

A central list of recipients is maintained by the company Fisheries Liaison Officer; if you are not the appropriate recipient of these notices, or do not wish to receive the notices in the future, please contact us at NnG.FLO@naturalpower.com.

A copy of this notice can also be found at https://nngoffshorewind.com/

 

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Commencement of Export Cable Burial Works - Neart na Gaoithe Offshore Wind Farm



Neart na Gaoithe Offshore Wind Farm Limited (NnGOWL) are due to commence cable burial works of the two export cables within the NnG Export Cable Corridor. The burial of the first export cable is due to begin week commencing 21st June 2021, at the earliest. The burial of the second export cable is due to begin week commencing 19th July 2021, at the earliest. Both export cables will be buried by a remotely operated vehicle (ROV) deployed and controlled from the Normand Pacific (LAXI7).


Mariners are advised that Neart na Gaoithe Offshore Wind Farm Limited (NnGOWL) are due to commence cable burial works of the two export cables within the Neart Na Gaoithe (NnG) Export Cable Corridor. The burial of the first export cable is due to begin week commencing 21st  June 2021, at the earliest. The burial of the second export cable is due to begin week commencing 19th July 2021, at the earliest. Both export cables will be buried by a remotely operated vehicle (ROV) deployed and controlled from the Normand Pacific (LAXI7).

 

Prior to the burial works commencing, a ROV will complete a pre burial survey on the as-laid export cables. Once complete, an ROV equipped with a jetting tool and mechanical cutting tool will be lowered onto the seabed to commence burial works. The ROV will be guided to the as-laid export cable and commence jetting operations. A jetting tool will be used for burial operations in softer ground conditions, whilst the mechanical cutting tool will be used for burial operations in harder ground conditions. Following the burial of the two export cables, the ROV will complete a post burial survey of the export cables to ensure the target burial depth has been achieved and that the cable protection is in situ.

 

Area of Operations

Mariners are advised that the Normand Pacific will be mobilised from Middlesbrough to work within the boundaries of the NnG Export Cable Corridor, within the coordinates provided.

 

Please be aware that by virtue of its mode of operation and the equipment deployed, the Normand Pacific will at times be Restricted in its Ability to Manoeuvre as defined under COLREGS (International Regulations for Preventing Collisions at Sea 1972, Rule 3).

 

Masters of vessels are therefore requested to maintain their vessels and gears at a minimum safe distance from the vessel of 500 metres when it is undertaking its work and showing the appropriate shapes and lights.

 

An exclusion area of 500m either side of each export cable route for static fishing gear is requested.  This is shown in Figure 2 and the coordinates provided in Table 2 overleaf. The existing nearshore exclusion area will also remain in place.

 

Vessels with bottom-towed gear are requested to be kept clear of a reduced exclusion area once the cable laying commences, which will be notified by the Company Fisheries Liaison Officer.

 

Schedule

The export cable burial is due to begin week commencing 21st June 2021 at the earliest, weather dependant. The cable burial works will be undertaken on the first export cable between June 2021 and July 2021, and on the second export cable between end July 2021 and August 2021. It is anticipated that both export cable burial works will be completed by end August, weather dependent.

 

Weather permitting and during daylight hours, construction works will be carried out on a continuous basis (i.e. 24-hour working, seven days a week), unless notified otherwise.

 

For updates on the progress of the works, information will be provided in the Weekly Notice of Operations available on the NnG project website: https://nngoffshorewind.com/resources/.

 

Vessels Associated with the Activity

 

Vessel name: 

Normand Pacific

Vessel role: 

Cable Burial Vessel

Call sign: 

LAXI7

Maritime Mobile Service Identity: 

257743000

On board contact: 

Contact name: Vessel Master

Email: pacific.master@n-pacific.solstadfarstad.com

Phone: +47 4768 8807

Onshore representative: 

Contact name: Knut Ove Emberland

Email: knut.ove.emberland@solstad.com

Phone: +47 5285 9553 / +47 9132 2633  

 

Two guard vessels are currently on site supporting the Neart na Gaoithe Offshore Wind Farm construction. The guard vessels will be two of the below, which can be contacted as follows, if required:

 

Vessel name: 

Cable Enterprise 

Vessel role:

Cable Installation Vessel

Call sign: 

2FOV9 

Maritime Mobile Service Identity: 

235093018 

On board contact: 

Contact name: Vessel Master  Email: ce.master@prysmiangroup.com  Phone: +44 779 8764403

Onshore representative: 

Contact name: Stefano Dalmasso  Email: sdalmasso@seaworldmanagement.com  Phone: +377 678 632642 

 

Two guard vessels are currently on site supporting the Neart na Gaoithe Offshore Wind Farm construction. The guard vessels will be two of the below, which can be contacted as follows, if required:

 

Vessel name: 

Morning Dawn 

Vessel role: 

Guard Vessel 

Call sign: 

MHEU3 

On board contact: 

Contact name: Vessel Master  Email: bridge@morning-dawn.co.uk  Phone: + 33 640 047722 /  +44 1779 400158  

 

Vessel name:

Seagull 

Vessel role: 

Guard Vessel 

Call sign: 

MVBO2

On board contact: 

Contact name: Vessel Master  Email: seagullbf74@gmail.com  Phone: +44 (0) 1261 878040 / +44 (0) 7895 919100

 

Vessel name: 

 Artemis 

Vessel role: 

Guard Vessel 

Call sign: 

MVIX5 

On board contact: 

Contact name: Vessel Master  Email: concordebf47@aol.com  Phone: +44 (0) 7949 663790 / +44 (0) 1261 455461 

 

Vessel name: 

Tranquillity S

Vessel role: 

Guard Vessel 

Call sign: 

MJUH9 

On board contact: 

Contact name: Vessel Master  Email: spousekeil@yahoo.com    Phone: +44 (0) 1346 454758 

 

Port of Operation The Normand Pacific will mobilise from Middlesbrough, UK.  

 

Adverse weather conditions  Upon adverse weather conditions, if the Normand Pacific is not able to hold on position, it will seek shelter or return to Port.

 

General Safety Advice  Construction activities are ongoing within the boundaries of the Neart na Gaoithe Offshore Wind Farm.  Mariners are advised to refer to the NnG Weekly Notice of Operations where up to date information regarding activities on site is broadcast. A copy of this notice and the Weekly Notice of Operations can also be found at https://nngoffshorewind.com/downloads/ 

 

Marine Coordination Contact Details  The following contact can provide more information if required. Please note that specific queries can also be addressed to the relevant vessel or shore based representative.

Telephone number  (daytime): 

+44 (0) 1890 751415 (use Emergency contact only until further notice)  

Emergency contact (24/7):

+44 (0) 7508 421406 

Email: 

nng.mc@smchse.com 

Address: 

NnG Offshore Wind Farm Marine Coordination Centre, Gunsgreen Basin, Eyemouth,  TD14 5SD 

 

Fisheries Liaison  Fisheries liaison associated with the activity will be co-ordinated by Natural Power. For any commercial fishery queries please contact the NnG company Fisheries Liaison Officer (CFLO) Peter Berney, telephone: +44 (0)7391 402387 or email: NnG.FLO@naturalpower.com. An Offshore Fisheries Liaison Officer (OFLO) will be present on both the Norne and Cable Enterprise and can be contacted via VHF Channel 16. 

 

Distribution List  A central list of recipients is maintained by the company Fisheries Liaison Officer; if you are not the appropriate recipient of these notices, or do not wish to receive the notices in the future, please contact us at NnG.FLO@naturalpower.com. A copy of this notice can also be found at https://nngoffshorewind.com/  

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Construction of Wind Farm - Neart na Gaoithe Offshore Wind Farm Limited



Neart na Gaoithe Offshore Wind Farm Limited (NnGOWL) will commence construction work for Neart na Gaoithe (NnG) Offshore Wind Farm, from the 9th August 2020, with the start of casing and pile installation operations on the wind farm site.


NnGOWL is developing the NnG Offshore Wind Farm, jointly owned by EDF Renewables and ESB, which is located in the outer Firth of Forth, Scotland. The NnG wind farm area is 15 km east off Fife Ness and 29 km from the East Lothian coastline and covers an area of 105 km2

The wind farm consists of 54 no. wind turbines (WTGs) and 2 no. Offshore Substation Platforms (OSPs), with a total capacity of approximately 45 0MW. Water depths across the offshore wind farm area generally range from 40 to 60 m below LAT. The generated power will be transmitted to the grid via two subsea export cable circuits which will reach landfall at Thorntonloch Beach, East Lothian, Scotland. Specific details and location of activities within the Wind Farm Area and Export Cable Corridor will be provided via subsequent notices as work progresses.

 

Buoyage

 

Five special markers are now in position:

 

Name Location

SP 1 - Special Mark - Fl Y 5s light character

56°18.180'N 02°12.075'W

SP 2 - Special Mark - Fl Y 5s light character

56°15.643'N 02°09.329'W

SP 3 - Special Mark - Fl Y 5s light character

56°12.294'N 02°15.796'W

SP 4 - Special Mark - Fl Y 5s light character

56°14.038'N 02°18.975'W

SP 5 - Special Mark - Fl Y 5s light character

56°18.924'N 02°18.951'W

 

Four cardinal buoys are due to be deployed the week commencing 16th March. Planned deployment locations

 

Name Location

NNG - North Cardinal - Quick (Q) white light character

56°20.425'N 02°14.617'W

NNG - East Cardinal - Q (3) 10 s white light character

56°14.329'N 02°08.558'W

NNG - South Cardinal - Q (6) + Long (L) FL 15 s white light character

56°12.294'N 02°09.760'W

NNG - West Cardinal - Q (9) 15 s white light character

56°17.057'N 02°21.084'W

 

A steel chain will be connected to each marker buoy, and the chain will be present through the water column, connected to an anchor placed on the seabed.

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Replacement Boulder Clearance Vessel - Neart na Gaoithe Offshore Wind Farm



Neart na Gaoithe Offshore Wind Farm Limited will replace the current boulder clearance vessel Sartor with the Vos Sweet (PCPE) from 10th August 2021, at the earliest to undertake remaining seabed preparation works within the Wind Farm Area.


Mariners are advised that Neart na Gaoithe Offshore Wind Farm Limited (NnGOWL) are due to replace the current boulder clearance vessel Sartor. The Sartor will be replaced by the Vos Sweet (PCPE) from 10th August 2021, at the earliest. The Vos Sweet (PCPE) will undertake the remaining seabed preparation works within the Wind Farm Area.

 

The Vos Sweet (PCPE), will carry out the remaining boulder relocation operations in preparation for installation of the inter array cables in the Wind Farm Area. The Sar Fame will be undertaking boulder relocation using a Subsea Multi-Tool Remotely Operated Vehicle with a grab.

 

Relocation of boulders in areas of inter array cable infrastructure is a critical pre-construction activity to reduce significant Health and Safety risks to the construction phase. Boulders will be relocated a short distance from their existing position only. Boulder relocation activities will take place within the Wind Farm Area in Figure 1.

 

Area of Operations

 

Mariners are advised that the Sar Fame will be mobilised to work within the Neart na Gaoithe (NnG) Wind Farm Area. The Wind Farm Area coordinates are provided in the table below. The remaining works are expected to last approximately four months, weather dependent.

 

Vessels are requested to remain at least 500 metres away from the work vessel.

 

 

LONGITUDE (DD.MM.MMM)

LATITUDE (DD.MM.MMM)

WIND FARM AREA

 

002° 09.898' W

56° 15.271' N

002° 09.255' W

56° 12.721' N

002° 13.998' W

56° 12.752' N

002° 16.293' W

56° 12.766' N

002° 19.628' W

56° 15.479' N

002° 20.055' W

56° 15.827' N

002° 20.232' W

56° 17.430' N

002° 17.826' W

56° 19.752' N

002° 16.518' W

56° 20.312' N

002° 14.910' W

56° 20.171' N

 

Schedule

 

The boulder relocation works commenced on the 2nd April 2021. The remaining boulder clearance works are expected to last approximately 4 months, until 30th September 2021, weather dependent.  It is currently anticipated that, weather permitting, construction works will be carried out on a continuous basis (i.e. 24-hour working, seven days a week) unless notified otherwise.

 

For updates on the progress of the works, information will be provided in the Weekly Notice of Operations available on the NnG project website here https://nngoffshorewind.com/resources/.

 

Vessels Associated with the Activity

 

Please be aware that by virtue of its mode of operation and the equipment deployed, the Sar Fame will at times be Restricted in its Ability to Manoeuvre as defined under COLREGS (International Regulations for Preventing Collisions at Sea 1972, Rule 3). Masters of vessels are therefore requested to maintain their vessels and gears at a minimum safe distance from the Sar Fame of 500 metres when it is undertaking its work and showing the appropriate shapes and lights.

 

Vessel name:

Vos Sweet

Vessel role:

Boulder Relocation

Call sign:

PCPE

Maritime Mobile Service Identity:

246609000

On board contact:

Contact name: Vessel Master

Email: bridge@vossweet.fleetvroom.com

Phone: +31 620 133192

Onshore representative:

Contact name: Bob Kingdon

email: bobk@hughes-subsea.com

Phone: +44 (0) 7956 222203

 

Vessel name:

Seagull

Vessel role:

Guard Vessel

Call sign:

MVBO2

Maritime Mobile Service Identity:

311947000

On board contact:

Contact name: Vessel Master

Email: seagullbf74@gmail.com

Phone: +44 (0) 1261 878040 / +44 (0) 7895 919100

 

Vessel name:

Artemis

Vessel role:

Guard Vessel

Call sign:

MVIX5

On board contact:

Contact name: Vessel Master

Email: concordebf47@aol.com

Phone: +44 (0) 7949 663790 / +44 (0) 1261 455461

 

Vessel name:

Tranquillity S

Vessel role:

Guard Vessel

Call sign:

MJUH9

On board contact:

Contact name: Vessel Master

Email: spousekeil@yahoo.com  

Phone: +44 (0) 1346 454758

 

General Safety Advice

 

Construction activities are ongoing within the boundaries of the Neart na Gaoithe Offshore Wind Farm.  Mariners are advised to refer to the NnG Weekly Notice of Operations where up to date information regarding activities on site is broadcast. A copy of this notice and the Weekly Notice of Operations can also be found at https://nngoffshorewind.com/resources/.

 

Marine Coordination Contact Details

 

The following contact can provide more information if required. Please note that specific queries can also be addressed to the relevant vessel or shore based representative.

 

Telephone number

(daytime):

+44 (0) 1890 751415 (use Emergency contact only until further notice)

Emergency contact (24/7):

+44 (0) 7508 421406

Email:

nng.mc@smchse.com

Address:

NnG Offshore Wind Farm Marine Coordination Centre, Gunsgreen Basin, Eyemouth,

TD14 5SD

 

Fisheries Liaison

 

Fisheries liaison associated with the activity will be co-ordinated by Natural Power. For any commercial fishery queries please contact the NnG company Fisheries Liaison Officer (CFLO) Peter Berney, telephone: +44 (0)7391 402387 or email: NnG.FLO@naturalpower.com.  An Offshore Fisheries Liaison Officer (OFLO) will be present on the Sar Fame and can be contacted via VHF Channel 16.

 

Distribution List

 

A central list of recipients is maintained by the company Fisheries Liaison Officer; if you are not the appropriate recipient of these notices, or do not wish to receive the notices in the future, please contact us at NnG.FLO@naturalpower.com. A copy of this notice can also be found at https://nngoffshorewind.com/.   

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Commencement of Pile Installation Campaign - Neart na Gaoithe Offshore Wind Farm



Mariners are advised that Neart na Gaoithe Offshore Wind Farm Limited (NnGOWL) is due to commence pile installation within the Neart Na Gaoithe (NnG) Wind Farm Area. The work is due to begin week commencing 14th June 2021, at the earliest.


In preparation for the jacket foundation installation, three piles for each wind turbine location and offshore substation  platform will be installed. The piles will be installed by the Saipem 3000 (S3000) (call sign: C6SW6) into pre-drilled  sockets. Pile installation support will be provided by the Skandi Acergy (call sign: LAFD7) offshore construction vessel, which will arrive to site in late June 2021. The Skandi Acergy will transfer supporting materials and installation equipment between positions on the seabed adjacent to each foundation location. On arrival at each location, the S3000 will collect and utilise this wet-stored equipment during pile installation.  Once the three piles have been positioned within the pre-drilled sockets, grout will be inserted to secure them in place.

 

A supply vessel will be utilised to transport piles to NnG wind farm, as required.  Further information on the vessel for each visit will be provided on the Vessel Report and Weekly Notice to Mariners available at https://nngoffshorewind.com/resources/.

 

Area of Operations

Mariners are advised that the S3000 will be mobilised from Rotterdam (NL) to work within the NnG Wind Farm Area.

 

All vessels are requested to remain at least 500 metres away from all work vessels and the static fishing gear remains as shown in the below table.

 

 

WIND FARM AREA

LONGITUDE (DD.MM.MMM)

LATITUDE (DD.MM.MMM

002° 09.898' W

56° 15.271' N

002° 09.255' W

56° 12.721' N

002° 13.998' W

56° 12.752' N

002° 16.293' W

56° 12.766' N

002° 19.628' W

56° 15.479' N

002° 20.055' W

56° 15.827' N

002° 20.232' W

56° 17.430' N

002° 17.826' W

56° 19.752' N

002° 16.518' W

56° 20.312' N

002° 14.910' W

56° 20.171' N

 

EXCLUSION TO STATIC GEAR

LONGITUDE (DD.MM.MMM)

LATITUDE (DD.MM.MMM)

002° 20.566' W

56° 15.680' N

002° 20.849' W

56° 17.468' N

002° 18.242' W

56° 19.938' N

002° 16.611' W

56° 20.613' N

002° 14.363' W

56° 20.392' N

002° 09.300' W

56° 15.334' N

002° 08.661' W

56° 12.651' N

002° 09.058' W

56° 12.405' N

002° 16.505' W

56° 12.410' N

 

Schedule

The pile installation work is due to begin week commencing 14th June, at the earliest. It is anticipated that the works will be completed by mid-December 2021, weather dependent. 

 

Weather permitting, construction works will be carried out on a continuous basis, 24-hours per day, seven days a week. 

 

For updates on the progress of the works, information will be provided in the Weekly Notice of Operations available on the NnG project website: https://nngoffshorewind.com/resources/.

 

Vessels Associated with the Activity

Please be aware that by virtue of its mode of operation and the equipment deployed, the S3000 and Skandi Acergy will at times be Restricted in their Ability to Manoeuvre as defined under COLREGS (International Regulations for Preventing Collisions at Sea 1972, Rule 3). Masters of vessels are therefore requested to maintain their vessels and gears at a minimum safe distance from these vessels of 500 metres when they are undertaking it work and showing the appropriate shapes and lights.

 

Vessel name:

Saipem 3000

Vessel role:

Pile Installation Vessel

Call sign:

C6SW6

Maritime Mobile Service Identity:

311516000

On board contact:

Contact name: Vessel Master

Email: captain.s3000@saipem.com   

Phone: +39 02 010 24650

Onshore representative:

Contact name: Ben Stokes

Email: Benjamin.Stokes@saipem.com 

Phone:  +44 7833 479 546

 

Vessel name:

Skandi Acergy

Vessel role:

Offshore Construction Vessel

Call sign:

LAFD7

Maritime Mobile Service Identity:

257691000

On board contact:

Contact name: Vessel Master

Email: Acergy.captain@acergy.dof.no 

Phone V-Sat: +47 23 67 54 04 

Or Vessel Bridge Contact 

Email: Acergy.bridge@acergy.dof.no 

Phone V-Sat: +47 23 67 54 05

Onshore representative:

Contact name: Stig Rabben (Designated Person Ashore – DPA)

Email:  Stig.Rabben@dof.com 

Phone:  +47 992 03 609

 

One guard vessel is currently within the wind farm site supporting NnG Offshore Wind Farm construction. The guard vessels will be one of the below, which can be contacted as follows, if required:

 

Vessel name:

Seagull

Vessel role:

Guard Vessel

Call sign:

MVBO2

Maritime Mobile Service Identity:

311947000

On board contact:

Contact name: Vessel Master

Email: seagullbf74@gmail.com

Phone: +44 (0) 1261 878040 / +44 (0) 7895 919100

 

Vessel name:

Artemis

Vessel role:

Guard Vessel

Call sign:

MVIX5

On board contact:

Contact name: Vessel Master

Email: concordebf47@aol.com

Phone: +44 (0) 7949 663790 / +44 (0) 1261 455461

 

Vessel name:

Tranquillity S

Vessel role:

Guard Vessel

Call sign:

MJUH9

On board contact:

Contact name: Vessel Master

Email: spousekeil@yahoo.com  

Phone: +44 (0) 1346 454758

 

Port of Operation

The S3000 will mobilise from Rotterdam, NL. The Skandi Acergy will mobilise from Blyth, UK.

 

Adverse weather conditions

Upon adverse weather conditions, if the S3000 and Skandi Acergy are not able to hold on position, they will both seek shelter or return to a Port within the Firth of Forth.

 

General Safety Advice

Construction activities are ongoing within the boundaries of the Neart na Gaoithe Offshore Wind Farm.  Mariners are advised to refer to the NnG Weekly Notice of Operations where up to date information regarding activities on site is broadcast. A copy of this notice and the Weekly Notice of Operations can also be found at https://nngoffshorewind.com/resources/

 

Marine Coordination Contact Details

 

The following contact can provide more information if required. Please note that specific queries can also be addressed to the relevant vessel or shore based representative.

Telephone number

(daytime):

+44 (0) 1890 751415 (use Emergency contact only until further notice)

Emergency contact (24/7):

+44 (0) 7508 421406

Email:

nng.mc@smchse.com

Address:

NnG Offshore Wind Farm Marine Coordination Centre, Gunsgreen Basin, Eyemouth,

TD14 5SD

 

Fisheries Liaison

Fisheries liaison associated with the activity will be co-ordinated by Natural Power. For any commercial fishery queries please contact the NnG company Fisheries Liaison Officer (CFLO) Peter Berney, telephone: +44 (0)7391 402387 or email: NnG.FLO@naturalpower.com.  An Offshore Fisheries Liaison Officer (OFLO) will be present on the Sar Fame and can be contacted via VHF Channel 16.

 

Distribution List

A central list of recipients is maintained by the company Fisheries Liaison Officer; if you are not the appropriate recipient of these notices, or do not wish to receive the notices in the future, please contact us at NnG.FLO@naturalpower.com. A copy of this notice can also be found at https://nngoffshorewind.com/.   

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NO-UK Telecoms cable in UK TW and EEZ - Proposed Cable



Global Marine are continuing the installation of the proposed NO-UK Telecommunications cable in UK TW and EEZ. Pre-installation rock placement is complete, with cable installation starting on 20 July 2021. Details below.


Please be advised that Global Marine are conducting the installation of the proposed NO-UK Telecommunications cable in UK TW and EEZ. Please note that there will be numerous vessels associated with the project. These are summarised below:

  • Shore End Works  30th August – 6th September 2021

The Green Isle vessel as well as two smaller (<7m LOA) support RIBs (Echo and Speedbird) will be conducting intertidal and nearshore trenching works between 55°05.7445’N 1°29.3906’W & 55°05.8989’N 1°27.8456’W.

 

  • Cable installation (UK TW - EEZ)  23rd July – 5th September 2021

The Normand Clipper  will be installing the proposed NOUK cable from the landing point at Seaton Sluice and laying the cable towards Norway.

 

  • Post Lay Inspection Burial (PLIB) (UK TW - EEZ) 7th September – 15th September 2021

The Grand Canyon III (specification attached) will be conducting further PLIB activity along the cable route. Timings and locations of this activity is TBC.

 

The Grand Canyon III will be conducting further PLIB activity along the cable route. Timings and locations of this activity is TBC.

  • Post installation rock placement vessel (UK EEZ) 29th Ssptember – 1st October 2021

The Stornes vessel will then be conducting post installation rock placement at 4 pipeline crossings. These are located at

(55Ëš19.2785’N 0Ëš18.1219’W), (55Ëš33.6028’N 0Ëš42.0795’E), (55Ëš 57.2785’N 1 Ëš38.5306’E) & (56°1.7791’N 1°55.4618’E).

 

The vessels will be limited in manoeuvrability. Other vessels should maintain a distance of at least 1NM from the cable ship during operations. 

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Confirmed UXO - Seagreen Offshore Windfarm



A confirmed UXO target has been located within the Seagreen Offshore Windfarm construction site. The target has a 500 metre exclusion zone around it with immediate effect. The vessel Glomar Worker will transmit a securite broadcast at 6 hourly intervals to alert all vessels in the area.


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Lidar Recovery - East Anglia Two Wind Farm



SeaWatch LiDAR Buoy (SWLB) currently deployed at the East Anglia TWO wind farm site is now due for recovery. These works are planned for 7 September 2021 onwards. Using vessel Voe Vanguard call sign: MBEN9.


The equipment is to be recovered by a single vessel, which is expected to take approximately 3 hours to complete.

The SWLB is a sea state measurement instrument (referred to as ‘the equipment’). The deployment location is within the UK Sector of the North Sea off the coast of East Suffolk and Essex.

The mooring design is specific to each SWLB deployment and location. The equipment is moored through a combination of steel chains, rope and rubber cord to approximately 2250 kg anchor weight at the seabed.

 

The equipment has been deployed within the East Anglia TWO wind farm site limits and will be recovered indefinitely  

 

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Shetland HVDC Link - Anomaly Inspection & Additional Geophysical Survey



NKT, on behalf of Scottish Hydro Electric Transmission, will be surveying and investigating geophysical anomalies caused by objects on the seabed surface or buried, along the Shetland HVDC Link that were identified during the recent geophysical survey, with a view to determining whether these are potential unexploded ordnance (pUXO). An additional geophysical survey will also be completed in the approaches to Noss Head, using a Remotely Operated Vehicle (ROV) that will be towed along the route.


The operation is to complete survey and investigation works only, UXO clearance shall not be undertaken. The investigation shall, within the area of operation, only identify the pUXO as: UXO, suspected UXO or as non-UXO. It is of high importance that the geophysical anomalies are identified with the best possible accuracy.

 

The investigation survey will involve the use of Multibeam Echosounder (MBES), ROV and dredge pump, which involves the use of locally deployed equipment rather than any towed systems. Any debris that can positively be identified as non-UXO will be brought to deck if safe and reasonable to do so and disposed of appropriately onshore.

 

The anomaly investigation survey areas within the cable corridor are provided in this notice. An estimated 10 anomalies have been identified across the four areas. The additional ROV geophysical survey on the approach to Noss Head will cover a separate area of approximately 6km in length. The coordinates presented in this notice provide the simplified centreline of the survey areas, the geophysical and investigation survey works will be completed -/+100m either side of the centreline.

 

All survey and investigation activities will be conducted by the ‘Noordhoek Pathfinder’. Please be aware that the vessel will be restricted in her ability to manoeuvre as defined under COLREGs (International Regulations for Preventing Collisions at Sea 1972). Masters of vessels are therefore requested to maintain their vessels at a minimum safe passing distance of 500 metres when it is undertaking work and showing the appropriate shapes and lights in accordance with COLREGs Rules 16 and 18.

 

Legal Notice

Please be advised that this Notice to Mariners should be treated as official notice of the nature, duration and location of the works which are scheduled to take place. During the period of this notice, failure to remove equipment or entry into the identified location in a manner that would constitute a hazard to the operations described may be considered a breach of the Convention on International Regulations for Preventing Collisions at Sea 1972 and/or the Merchant Shipping Act 1995 (a breach of which can carry criminal sanctions). Additionally, should any failure to remove any equipment within the notified location, or the presence of any vessel, prevent, obstruct, or delay the works, Scottish Hydro Electric Transmission Plc may consider taking legal action to remove the obstruction and/or seek damages for any delay, in addition to any legal costs in doing so.

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Deployment & operation of two Acoustic Doppler Current Profilers-Erebus Floating Offshore Wind Farm



To inform the engineering designs and Environmental Impact Assessments (EIA) for the proposed Erebus Floating Offshore Wind Farm (FLOW) offshore export cable, two frame mounted Acoustic Doppler Current Profilers (ADCP) have been successfully deployed within Rows Rocks Channel, near the entrance to the Milford Haven Waterways.


The ADCPs will be in situ on the seabed for up to 3 months. ADCP dimensions and an image of the ADCP and frame to be deployed is shown below. A marker buoy will not be used during deployments.

 

Item

Location 1 (mid channel)

Location 2 (near shore)

Seabed frame weight

240Kg

100kg

Seabed frame dimensions

1.5 x 1.5m

1m x 0.75m

ADCP height above seabed

0.5m

0.3m

Highest point above seabed from entire equipment

0.9m

0.3m

 

The ADCPs deployment locations are provided below:

 

Location 1 (mid channel)

Degrees Minutes Seconds

 51°40’44.04” N

 005°08’10.80” W

Degrees Decimal Minutes

 51° 40.734‘ N

 005° 08.180’ W

Location 2 (near shore)

Degrees Minutes Seconds

 51°41’14.76” N

 005°07’21.12” W

Degrees Decimal Minutes

 51° 41.246‘ N

 005° 07.352‘ W

 

It is intended for the ADCPs will remain in situ for 3 months and therefore mariners should navigate with caution.

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Pentland Floating Offshore Wind SEAWATCH LiDAR Buoy



Fugro have deployed a SeaWatch LiDAR Buoy (SWLB) within the Pentland Firth, located off the north coast of Scotland. The equipment will be deployed for approximately one year and has been moored through a combination of steel chains, rope and rubber cord to approximately 2250 kg anchor weight at the seabed.


Fugro have deployed a SeaWatch LiDAR Buoy (SWLB); this is a sea state measurement instrument (referred to as ‘the equipment’). The deployment location is within the UK Sector of the North Sea off the north coast of Scotland.

  • The equipment was deployed on 29 August 2021, and will be deployed for approximately one year.
  • The equipment's location is provided within the attached Notice to Mariners.
  • Scheduled maintenance of the equipment is planned every six months, but unforeseen maintenance may be required.
  • The equipment has been moored through a combination of steel chains, rope and rubber cord to approximately 2250 kg anchor weight at the seabed.
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Moray West Geophysical Site investigations



Geophysical works are anticipated to commence on, and no earlier than, 4th September 2021, and survey duration is expected to be approximately 6 weeks. Geophysical surveys are forecasted to be completed by 16th October 2021, but the exact survey duration and completion date will depend on weather and progress of the works.


Geophysical works are anticipated to commence on, and no earlier than, 4th September 2021, and survey duration is expected to be approximately 6 weeks. Geophysical surveys are forecasted to be completed by 16th October 2021, but the exact survey duration and completion date will depend on weather and progress of the works.

Scope of work to include: Offshore geophysical surveys will comprise multi beam echo sounder (MBES), single beam echo sounder (SBES), side scan sonar (SSS) sub bottom profiler (SBP) and magnetometer.

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Uncrewed Vessel Cable Route Survey - Dogger Bank C Export Cable



Dogger Bank Project will be carrying out a bathymetry survey of the Dogger Bank C export cable route using remotely piloted uncrewed Surface Vessels (USV).


The USVs will be mobilised from Hartlepool Marina where each will transit under escort to the survey area. Survey operations will be continuous, 24 hours a day, A support vessel will escort the USV throughout the operations from the harbour entrance and will then continue transiting towards the survey site until the area is safe & clear of hazards. Although the vessel is uncrewed, it is managed throughout the 24hour operation piloted remotely using 360 degree cameras and other navigational aids. Passing vessels are requested to maintain a minimum 500m safety distance from USV during operations, reducing speed to minimise wake disturbance.

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Boulder Clearance and Relocation Works - Seagreen Offshore Windfarm



A boulder clearance and relocation campaign will take place within Seagreen Offshore Windfarm site boundary. An ROV with integrated grab tool will be launched using the vessels heave compensated crane to facilitate the relocation of pre-selected boulders from working areas. Any seabed debris located within working areas will also be relocated.


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Exposed Pipe - Installation of temporary marker buoy



This notice to mariners (NtM) relates to the installation of a temporary marker buoy positioned at the north of the end of the exposed export cable ducts protruding from the seabed. During the period of the nearshore intervention works (described in NtM LF500013-MIP-DOG-NOT0012), the temporary marker buoy will be positioned to the north of the works area.


On completion of the nearshore works, the temporary marker buoy will be repositioned between the exposed ducts and a further revised NtM published.

This NtM supersedes LF500013-MIP-DOG-NOT005, issued on the 1st March 2021

 

The marker buoy characteristics are: Yellow Special Mark, light pattern: Fl(Y)5s

 

Mariners are reminded to navigate with caution, keeping a safe passing distance from the temporary marker buoy and keeping a continuous watch on VHF Ch. 70/16 when navigating the area.

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Eastern Link - Marine Survey Operations



Marine Survey Works for the Eastern Link Project.These works precede the installation of a HVDC electricity transmission link from the East coast of Scotland (Sandford Bay, Peterhead) to the East coast of England (South of Bridlington/ Flamborough Head).


The marine survey works are being carried out by Next Geosolutions UKCS Ltd. on behalf of National Grid Electricity Transmission Plc and Scottish Hydro Electric Transmission Plc.

 

The marine survey activities are planned to commence at Sandford Bay and close to Peterhead from the 20th April 2021. Upon completion of the Nearshore Marine Survey at Peterhead the vessel will transit to Bridlington to complete the Nearshore Marine Survey at Bridlington. Works will continue along the offshore route until August 2021. The marine survey works covered by this NtM are to be conducted by three survey vessels, divided into the following activities, as indicated:

 

Date Activity Vessel Call Sign
20 April 2021

Nearshore Marine Survey Peterhead

ACTIVITY COMPLETED

SV Humber Guardian 2ENC3
June 2021

Nearshore Geotechnical Survey Peterhead

ACTIVITY COMPLETED

MultiCat Forth Warrior 2JHR8
May - Sept 2021

Offshore Marine Survey, Peterehead to Bridlington

ACTIVITY ONGOING

MPSV Ievoli Cobalt IBOK
April / May 2021

Nearshore Marien Survey Bridlington

ACTIVITY COMPLETED

SV Humber Guardian 2ENC3
May 2021

Nearshore Geotechnical Survey Bridlington

ACTIVITY COMPLETED

MultiCat Forth Warrior 2JHR8

 

The Nearshore works are to be conducted West, of point AC6, Longitude 1° 43.5’W at Peterhead and West of point AC61, Longitude 0° 03.7’W South of Flamborough Head, Bridlington, reference Figures 1 and 2 overleaf. All vessels shall pass at a safe speed and distance, whilst fishing vessels shall remain at a safe distance (approximately 500 meters) (COLREGs Rule 16 & 18) from the areas identified during marine survey operations. The aforementioned survey vessels will be restricted in her ability to maneuver and shall deploy towed sensors during geophysical survey operations only. The survey vessels will monitor VHF Channel 16 at all times. Mobile contacts for the vessels are listed at the end of this NtM.

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West of Orkney Windfarm Reconnaissance Geophysical Survey 2021



Offshore Reconnaissance Survey of 8 proposed cable landfall spread out across the Caithness and Orcadian coastal areas in preparation for a potential offshore wind farm development for Offshore Wind Power Limited.


A reconnaissance geaophysical survey will be carried out in the vicinity of 8 potential cable landfall locations which are currently under consideration for a future windfarm development coordinates of each of the survey areas are provided in the attached document.

 

Activities will include use of the following survey kit at each of the 8 cable landfalls:

  • Multi Beam Echo Sounder (MBES) - used to obtain detailed 3-dimensional (3D) maps of the seafloor which show water depths. They measure water depth by recording the two-way travel time of a high frequency pulse emitted by a transducer.
  • Sub Bottom Profiler (SBP) - used to identify and characterise layers of sediment under the seafloor. A transducer emits a sound pulse vertically downwards towards the seafloor, and a receiver records the return of the pulse once it has been reflected off the seafloor.
  • Sound Velocity Profiler (SVP) - The SVP continuously emits high frequency pulses as it is lowered towards the seafloor in order to measure the speed of sound within the water column. This technology also makes use of sonar to determine how quickly sound attenuates in the marine environment, which can aid in calibrating geophysical survey equipment.

 

Mariners are advised to keep a safety clearance of the vessel of no less than 500m.

 

Port of Operation

Spectrum Geosurvey will mobilise / operate out of the port of Scrabster (Pentland), Stromness (Orkney) – Please note we intend to use smaller ports near locations in Orkney.

Survey duration

The survey window will commence on 4th September 2021 and run through to end of September. The total duration for survey activity is expected to take approximately 22 days. The survey vessel will be present in the region for an overall period of up to 40 days allowing for time to travel between the survey sites and an indicative 50 % downtime for weather and technical constraints.

 

Contact Details for Fisheries Liaison

Fisheries Liaison is being carried out by Xodus Group, for all fisheries enquires please contact Xodus Group Fisheries Liaison Officer (FLO) Gareth Jones.

Telephone number: +44 (0)1224 219996

Email: OWPLFisheries@xodusgroup.com

 

Spectrum Geosurvey Contact Details:

Further enquiries should be addressed to the following people:

 

Spectrum’s Contact 

David Hubble Notification to Mariners for OWPL Reconnaissance Geophysical Survey August 2021

01590 820 050

Info@spectrum-offshore.com

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Exposed power cable in free-span (up to 2 metres off the seabed)



A recent survey has detected a 17m long cable suspension (free-span), that is up to 2 metres high, on the BritNed Interconnector HVDC cable. This poses the risk of entrapment of trawling gear; all vessels fishing are advised to keep well clear. At its maximum height, the suspension is in the order of 1.5 - 2m clear of the seabed. BritNed are actively looking at remedial options, but in the meantime all fishing vessels are advised to give this location a wide berth.


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Dive and R.O.V. operations - Robin Rigg Offshore Wind Farm



Dive and R.O.V. surveys are to take place at all turbine positions inside wind farm perimeter. A safety distance of at least 500 metres is required around the dive vessel 'Katabatic' (Call Sign: MAMU2) at all times. Dive an R.O.V. operations will be carried out on 24hr basis.


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Havhingsten Cable - surface laid cable



Please be advised that there are three areas of surface-laid cable, pending rock placement works in the second half of 2021.


Please be advised that the remaining post-lay burial (PLIB) works of the Havhingsten fibre optic telecommunication cable system have now been completed in the Irish Sea, but there are three areas of surface-laid cable which are pending rock placement works.

 

There is a maximum of 25m of cable surface laid with Uradact protection either side of the crossings listed below. Rock protection works will be carried out during the second half of 2021. It is advised that extra care is taken when vessels are operating near the areas and that no vessel should trawl within 0.25 nautical miles from the listed coordinates prior to rock placement. The rock berms will be over trawlable and in-line with industry standards.

 

Rock Placement Location Name

Latitude

Longitude

Western HVDC (S1.5)

53 ° 45.9867' N

003° 48.9137' W

Western HVDC (S1.2)

53° 54.7007' N

004° 58.3552' W

Western HVDC (S1.4)

53° 53.8396' N

004° 34.1792' W

 

For further information please contact the Fisheries Liaison Officer (FLO) / Fishing Industry Representative (FIR) numbers:

 

IoM Onshore FLO

Guy Sutton:                        rgsutton@outlook.com – 07624428332

 

FIR

Tom Watson:                     tomwatsonfleetwood@btinternet.com – 07903 173624

 

FLO (MarineSpace)

Bethan Owens:                 bethan.owens@marinespace.co.uk – 07833 557808

Claire Griffiths:                  claire.griffiths@marinespace.co.uk – 07498 550 586

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Exposed and Free Span - Greater Gabbard Offshore Wind Farm



Results of the Greater Gabbard OFTO export cable survey. The chart lists the changes to the exposures on the three export cables, on the inshore section between KP 3 and KP 5 with a free span remaining around KP 4. Between KP 36 and KP 38 there are some exposed sections as the cables enter the site. In addition, although listed as exposures on the chart, there are areas of shallow burial at KP10 and a cable exposure on the interconnector cable within the site.


Please find attached a chart showing the results of the Greater Gabbard OFTO export cable survey. The chart lists the changes to the exposures on the three export cables, on the inshore section between KP 3 and KP 5 with a free span remaining around KP 4. Between KP 36 and KP 38 there are some exposed sections as the cables enter the site. In addition, although listed as exposures on the chart, there are areas of shallow burial at KP10 and a cable exposure on the interconnector cable within the site.

 

The exposed/shallow burial areas are shown as the coloured dots on the cable route highlighted in a black box.  Equitix (Greater Gabbard OFTO) have asked that all Fishermen operate with caution when fishing anywhere on the cable route and particularly the areas that are shallow buried around KP10.’

 

Coordinates of exposed/shallow burial areas are shown on the attached chart.

 

The OFTO is updating its risk assessments to determine the extent of remedial measures that may be required. Equitix intend to provide an update on remediation after the risk assessment exercise is complete.’

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Confirmed UXO - Seagreen Offshore Windfarm



A confirmed UXO target has been located within the Seagreen Offshore Windfarm construction site.


The target has a 500 metre exclusion zone around it with immediate effect. The vessel Glomar Worker will transmit a securite broadcast at 6 hourly intervals to alert all vessels in the area.

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Confirmed UXO - Seagreen Offshore Windfarm



A confirmed UXO target has been located in the Seagreen Offshore Windfarm construction site.


The target has a 500 metre exclusion zone in place with immediate effect.

 

The on site vessel "Glomar Worker" will transmit a securite broadcast at 6 hourly intervals giving full details of the hazard to all vessel in the area.

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Inch Cape Offshore Met Mast AIS currently non-operational



Please be advised that the AIS on the Inch Cape Offshore Met Mast is currently non-operational. The marine navigation lights, foghorn, aviation lights remain operational.


Please be advised that the AIS on the Inch Cape Offshore Met Mast is currently non-operational. The marine navigation lights,  foghorn, aviation lights and remain operational. This fault will be investigated and notification provided once the AIS is operational again. 

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Survey - Outer Dowsing Offshore Wind



Outer Dowsing Offshore Wind (a joint venture between TotalEnergies and Green Investment Group) shall be conducting a 5 month offshore geophysical survey approximately 60km East of the Humber Estuary from 10th August to 29th December 2021.


Using vessel Guard Celena call sign : V7OY7. The survey vessel shall be towing a cable up to approximately 150m behind the vessel (the end marked by a tail buoy) at depths of up to 3m below sea level. The survey vessel shall have limited maneuverability so please allow a safe distance.

 

Company: Outer Dowsing Offshore Wind

Contractor: Enviros Survey & Consultancy Limited

Survey vessel : Guard Celena

Survey vessel call sign: V7OY7

 

Earliest start date: 10th August 2021 Latest finish date: 29th December 2021

 

It should be noted that the survey vessel shall be initially accompanied by a fishing vessel: Sorrento GY189 providing visual reconnaissance for any sea surface obstacles. Company : Outer Dowsing Offshore Wind

Contractor : NFFO Services Limited

Support vessel : Sorrento GY189

Support vessel call sign : 2XLE

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Export Cable Installation (Beach) - Hornsea Project Two



Ørsted have demobilised the export cable installation equipment from the beach and have buried all 3 export cables within the intertidal area.The export cable seaward of Mean Low Water Springs requires further burial works in the coming weeks.


Landfall Preparation and Cable Installation 

The export cable installation activities in the intertidal area are ongoing at the landfall at Horseshoe Point, Lincolnshire and will continue until approximately 30th September 2021. Works will be continual and intermittent throughout these periods.

 

It should be noted that export cable seabed preparation and installation seaward of mean low water springs is ongoing until end of 2021.

 

Vessels:

 

Vessel & Call Sign Activity

Ndurance

5BVH3

Cable Installation and burial

Coastal Vanguard

PCFH

AHT

Linestroom

PICW

AHT
Maagd Landfall tranporattion barge

Titan Endeavour

2ELT9

Nearshore Survey

 

 

 

 

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Cable Installation - Amitie Subsea Cable System



Alcatel Submarine Networks UK Ltd.(ASN) has been contracted to carry out construction activities of the AMITIÉ cable system(starting 2km from shore).The AMITIÉ cable system spans nearly 6,600 km in total with the initial UK landing point in Widemouth Bay.


Alcatel Submarine Networks UK Ltd. (ASN) has been contracted to carry out construction activities of the AMITIÉ cable system (starting 2km from shore). The AMITIÉ cable system spans nearly 6,600 km in total with the initial UK landing point in Widemouth Bay, near Bude, Cornwall. The construction activities will commence 2km from shore (>15m water depth) and will utilise the cable lay vessel “Ile de Brehat” call sign: FOUC, which will commence construction operations from the nearshore area out to the UK exclusive economic zone (EEZ)). The third-party vessel ESVAGT DON WM Offshore, call sign: OUNO2 will complete the PLGR in the UK EEZ only starting on approximately 23rd July lasting approximately 2 weeks. Following this the Ile de Brehat will start by performing a pre-lay grapnel run (PLGR) in UK Territorial Seas prior to laying the cable beyond the UK continental shelf staring approximately on 8th August 2021, lasting approximately 8 weeks. The exact start and finish date will be dependent on the prevailing weather conditions and work progress. It is requested that all vessels operating within this area keep their distance, maintaining at least a 500 m exclusion zone, and pass at minimum speed to reduce vessel wash.  

 

The cable lay vessel, Ile de Brehat call sign: FOUC will be operating from approximately 2km from shore out to the UK EEZ laying and burying the Amitié cable, including pre-lay grapnel run (PLGR) in UK Territorial Seas. The vessel ESVAGT DON call sign: OUNO2 (WM Offshore) is also contracted to complete the PLGR works in the UK EEZ only. These operations will be conducted on an ongoing 24 hour basis. A listening watch will be maintained on VHF Channel 16, and the vessels will actively transmit an AIS signal. Please see contact details for the Ile de Brehat & ESVAGT DON 

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Five Estuaries Offshore Wind Farm Project - Offshore Surveys



Five Estuaries Offshore Wind Farm Limited has contracted Fugro GB Marine Limited (Fugro) to carry out a geophysical and environmental site investigation in the North Sea for the proposed Five Estuaries Offshore Wind Farm (FEOW) site.


Fugro Mercator - Offshore Geophysical Survey

The geophysical operations at the Five Estuaries site are expected to be carried out from the Fugro Mercator from 5 th August 2021 for approximately 14 weeks.

 

Fugro Mercator will be conducting operations across the Main Array and Export Cable Route areas >10m LAT. Please note that the exact start and finish date will be dependent on the prevailing weather conditions and work progress.

 

As the Fugro Mercator will be towing survey equipment the vessel will require large turning circles and will be restricted in her ability to manoeuvre. All vessels operating within this area are requested to keep their distance, maintaining at least the 500m safety zone around the survey vessel, and pass at minimum speed to reduce vessel wash.

 

A continuous listening watch will be conducted on VHF Channel 16.

 

Survey operations will be conducted on a 24-hour basis.

 

Curtis Marshall - Environmental Survey

The environmental operations at the Five Estuaries site are expected to be carried out from the Curtis Marshall from 2 nd November 2021 for approximately 2 weeks. Curtis Marshall will be conducting operations across the Main Array and Export Cable Route areas both offshore and nearshore. Please note that the exact start and finish date will be dependent on the prevailing weather conditions and work progress. 

 

As the Curtis Marshall will be deploying equipment astern of the vessel, the vessel will require large turning circles and will be restricted in her ability to manoeuvre. All vessels operating within this area are requested to keep their distance, maintaining at least the 500m safety zone around the survey vessel, and pass at minimum speed to reduce vessel wash.

 

A continuous listening watch will be conducted on VHF Channel 16.

 

Survey operations will be conducted on a 24-hour basis.

 

Fugro Seeker - Nearshore Geophysical Investigation

 

The geophysical operations on the Five Estuaries export cable route from the 10m LAT contour inshore to the potential landfall, are expected to be carried out from the survey vessel Fugro Seeker from 1 st August 2021 for approximately 6-7 weeks. Please note that the exact start and finish date will be dependent on the prevailing weather conditions and work progress.

 

As the Fugro Seeker will be towing survey equipment the vessel will require large turning circles and will be restricted in her ability to manoeuvre. All vessels operating within this area are requested to keep their distance, maintaining at least the 500m safety zone around the survey vessel, and pass at minimum speed to reduce vessel wash.

 

A continuous listening watch will be conducted on VHF Channel 16.

 

Survey operations will be conducted on a 12-hour basis.

 

 

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Hazard - Confirmed UXO



A confirmed UXO target has been located on the Seagreen Offshore Windfarm construction site.


The target has a 500m exclusion zone in place with immediate effect.

The on site vessel the Glomar Worker will transmit a securite broadcast at 6 hour intervals giving full details of the hazard to all Vessels in the area.

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Potential Hazard - Lost CPT rods



Lost 4.25m of CPT rods made up of: 1 x 0.35m cone, 1 x 0.5m friction rod, 3 x 1m rods, 1 x 0.4m rod and approx. 3.85m communications lead (standard 4 core signal cable) potentially sticking up 1.15m above seabed.


During a CPT push at location EA1N-21-IAC-024-TCPT, the rods encountered a hard layer at 3.2m below the surface.

 

As communication was lost instantly at 3.1m when the rods started to be retracted, it is assumed the breakage occurred at that point and therefore the equipment was left at the 3.1m of the push. If this was the case then the top of the lost rods would be 1.15m above the seabed (in the worst case scenario).

 

Further investigation is planned to determine more accurately whether lost rods are above seabed level. The vessel will perform a side scan sonar survey and make use of a subsea camera at the location

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Dropped Concrete Anchor Block - Viking Link Interconnector Project



The object dropped was a concrete anchor block measuring approximately 1m x 1m x 1.2m with a deployment line / rope. Side Scan survey to be deployed, diver intervention to rig up and removal via support vessel as the final step.


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Havhingsten Cable Project - North Sea



Prior to rock placement there is a maximum of 50m of cable surface laid at each of the 4 crossings. It is advised that extra care is taken when vessels are operating near these areas and that no vessel should trawl within 250m from.


Please be advised that, installation of the Havhingsten fibre optic telecommunication cable system is complete outside of 12nm within the North Sea and at the Seaton Sluice landing. The Whitley Bay stub works are scheduled for March 2021.

 

The supplier of the Havhingsten cable is Alcatel Submarine Networks (ASN). Intertek are the environmental and permitting consultants.

 

The entire cable system will comprise marine elements that pass from Denmark to the UK (NE region); from the UK (NW) to the Republic of Ireland; with two segments being installed into landfalls on the Isle of Man. 

 

The cable route in the NE region is shown below. Landfall was made at Seaton Sluice.

 

Installation was via industry standard burial tools including water jetting and ploughing. Cable burial has been performed to a target of 2m.

 

The Havhingsten cable crosses 4 pipelines within the UK North Sea, which will require external rock protection. Post-rock installation is now expected in March 2021. The cable crossings start at approximately 72km offshore and beyond.

 

Prior to rock placement there is a maximum of 50m of cable surface laid with Uraduct protection at each of the 4 crossings. Coordinates of the crossings are provided in the table below. It is advised that extra care is taken when vessels are operating near these areas and that no vessel should trawl within 250m from the listed coordinates.

Crossing

Approximate distance offshore (km)

Latitude

Longitude

CATS

72

55°15.8028’ N

000°21.9318’ W

Norpipe

113

55° 19.1679’ N

000° 16.0266’ E

Sleipner to Easington

140

55° 22.3375’ N

000° 40.9323’ E

Shearwater to Bacton

198

55° 30.7194’ N

001° 34.1236’ E

 

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Cable Fault - BritNed HVDC Cable



The second cable repair is completed, but possible exposed cable remains a hazard. Consequently, the safety zone is still in operation.


Following 2 recent faults (caused by impact damage) in the same area and subsequent repairs to the BritNed HVDC Interconnector, the latest completed on 07/06/21, the repaired section although trenched, is still in the process of natural backfill and areas of exposure remain. A guard vessel (currently M/V FORTUNA) remains on site. 

 

We wish to remind ship’s captains of the presence of subsea cables and request that extra caution is exercised when operating near charted cables in order to avoid any incident. Due to changing seabed conditions it should not be assumed that all cables are buried.

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Gwynt y Môr Cable Repairs



Briggs Marine Contractors (BMC) were contracted by Gwynt-Y-Mor OFTO to undertake a repair to the SSEC3 export cable due to a power core fault. The main works are completed. A small loop of cable remains unburied and raised above the seabed by approx. 2m


A north cardinal buoy is now in position 75m north of the cable loop on the following location and display a very quick flashing white light.

The marker buoy will remain in position until July 2022 when cable replacement works are planned to be completed by.

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Triton Knoll Offshore Wind Farm - Confirmed UXO Targets



Mariners are advised that two UXO targets have been confirmed within the Triton Knoll Offshore Wind Farm Array.


Please be advised that two UXO targets have been confirmed within the Triton Knoll Offshore Wind Farm Array.

 

Mariners are advised that the two confirmed targets are located within 20 metres water depth (LAT) and a 10 metre radius exclusion zone is required around each target.  The following table provides the coordinates and a description for each target.

 

Description of Target Latitude Longitude

Water Depth

(LAT) Metres

Required Exclusion

Zone (Metres Radius)

Archaeological - The item is thought to be an air-delivered bomb.  It appears to be in a stable condition and is resting on the seabed.  Marine growth and concretion cover the body, indicating it has been in situ for a significant duration. The tail section of the bomb is missing, which is typical of unexploded bombs from WWII found in these circumstances and there is a significant hole in the case. The dimensions and characteristics gathered are consistent with a 500kg German bomb. Considering the state of the bomb the Net Explosive Quantity of the bomb is likely to be <5kg. 53°31'50.249"N 00°47'45.908"E 20 10
Archaeological - The item is thought to be an air-delivered bomb.  It appears to be in a stable condition and is resting on the seabed.  Marine growth and concretion cover the body, indicating it has been in situ for a significant duration. The tail section of the bomb is missing, which is typical of unexploded bombs from WWII found in these circumstances and there is a significant hole in the case. The dimensions and characteristics gathered are consistent with a 500kg German bomb. Considering the state of the bomb the Net Explosive Quantity of the bomb is likely to be <5kg. 53°31'49.895"N 00°47'45.115"E 20 10

 

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Exposed Cables - Galloper Offshore Wind Farm



Update from most recent subsea survey. There is evidence of sections of cable exposure in ten areas over seven cable routes of the Galloper windfarm. Locations noted below


 

Area Start  Stop
D1J - E2J 51°48.489'N 002°02.339'E 51°48.489'N 002°02.341'E 
E3H - E4H 51°55.322'N 002°01.231'E 51°55.322'N 002°01.224'E
E4H - E5H 51°54.568'N 002°01.180'E 51°54.565'N 002°01.176'E
OSP - D3A 51°57.151'N 002°01.879'E 51°57.127'N 002°01.876'E
OSP - F3C 51°57.455'N 002°02.816'E 51°57.472'N 002°02.141'E
OSP - F3C 51°57.508'N 002°02.564'E 51°57.513'N 002°02.587'E
OSP - F4E 51°57.100'N 002°02.148'E 51°57.100'N 002°02.150'E
OSP - F4E 51°57.101'N 002°02.462'E 51°57.101'N 002°02.462'E
OSP - F6G 51°56.400'N 002°01.586'E 51°56.399'N 002°01.587'E
OSP - F6G 51°56.369'N 002°02.200'E 51°56.369'N 002°02.200'E

 

There is no cable exposure evident in the South Field of the windfarm.

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Dropped Anchor - Gwynt y Mor Offshore Wind Farm



The original anchor consisting of approximately 350kg of scrap chain at the previously as laid position:53°28.615 N 003°30.192 W could not be recovered and remains on the sea bed.


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Dropped Object - Hornsea Two Offshore Wind Farm



Noise monitoring frame(steel 1m3 frame approx. 40kg), hydrophone,riser buoy,clumped(100kg chain clump weight) & 50m Dyneema riser line(dia.~25 mm)remain after the riser line was severed below the surface buoy.Surface marker buoy and pellet buoy recovered.


The riser line was severed below the surface buoy and it has not been possible to recover the items. Investigations as to the cause of the loss are ongoing.

 

Possible risk of entanglement from remaining riser line.

 

The SONAR imagery acquired during the recovery attempt indicated the riser line (the main aspect of concern) to be still attached to the anchor weight and suspended in the lower part of the water column. Given the elapsed time, the line will be fully saturated and neutrally buoyant and fully submerged. It is anticipated that the action of tidal currents on the line will cause it to knock down and eventually become entangled in the frame and other gear. Whilst it has not been confirmed, it is unlikely that the line would remain close to the surface.

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Exposed and Shallow Buried Cable - Walney 1 Export Cable



The last High-Resolution Multibeam Echosounder and Side Scan Sonar of the Walney 1 & Walney 2 Export Cables have identified sections of the cable that are shallow buried and in some areas slightly exposed.Particularly the area of Morecambe Flats (KP 14.5)


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Array Cable Installation - Hornsea Project Two



Ørsted have commenced array cable installation with the Seaway Aimery and Seaway Moxie which will continue through to Q3 2021. The Simar Esperanca will commence trenching on or around 30th May 2021.


Array Cable Seabed  Installation

Ørsted will be commencing pre-lay surveys and seabed preparation for array cable installation with the Simar Esperanca and rock deployment with the Flintstone on or around 21st March 2021, shortly followed by array cable installation itself on or around 15th April 2021. In addition to this, Seaway Offshore Cables (SOC) and Sulmara may be trialling an autonomous survey vessel within the Hornsea Project Two array area which will be supported by a dedicated support vessel, queries related to this scope should be directed to SOC / Sulmara.

 

Works will be continual and intermittent throughout this period. The works will be undertaken by a number of vessels at different times according to the Project schedule. This Notice will be updated and re-issued when works are complete.

 

Note that the vessels will have limited manoeuvrability and it is requested that all vessels operating near the vessels maintain a safe distance (at least 500m) and pass all vessels at minimum speed.

 

Please be advised that construction activities are ongoing within the wind farm, supported by Crew Transfer Vessels (CTVs) and survey vessels intermittently. The Deep Cygnus will be mobilising to site as a support vessel to the ongoing construction works on or around 28th May 2021. The MHO Grimsby continues to carry out construction geophysical surveys intermittently utilising a hull-mounted system within the proposed Hornsea Project Two Offshore Wind Farm site and the Wind Innovation remains on the project for construction support.

It is requested that all vessels operating near the construction area keep a safe distance and pass at minimum speed.

 

 

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London Array OWF - Diving Operations



All mariners are advised that the Dive Support Vessels (DSV) ”MV C-Fenna” call sign: MBAH3 and ”MV C-Force” call sign: MITT4 will be onsite from 1/05/2021 for approximately 6 months to carry out diving operations.


These vessels will be supported by the” Spectrum 1” call sign: 2CQX3 and” Dalby Tees” call sign: 2FIA7 carrying out crew transfer operations. Works are to take place at various locations across the London Array windfarm As part of this work, Dynamic Bend Stiffeners will be installed using, subsea installation tools and divers within the London Array Wind Farm. Vessel: C-Fenna C-Fenna Dive Support Vessel (DSV) has a length of 26.5m and breadth of 11.0m. The C-Fenna uses a four-point mooring system. The C-Fenna will undertake mooring deployment within 150m of the assigned WTG. Equipment will be periodically deployed and suspended from the vessel crane during the work.

 

Planned Diving Locations and Restricted Access Zones:

The works is expected to commence on the 1st of May 2021 and continue for approximately 6 months. During this period diving locations will be selected from the list of locations as detailed in Figure 1. A total of three locations could be operational at any one time. Information about what location is presently being worked will be transmitted over VHF informing all local vessels of restrictions.

 

Prior to commencing diving operations 4 chain clump weights mooring will be deployed at the required WTG location. These moorings will be positioned as required to avoid known obstruction and expected current flows but will be within 150m radius of the WTG. Once deployed a 150m exclusion zone will be placed around the WTG. The Mooring will consist of two 12t chain cluster weights connected to a surface buoy. A yellow light flashing yellow once every 5 seconds.

 

 

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Deployment of 2 x Metocean Buoys - North of Cromer



Partrac is to deploy two large metocean buoys (E03 and E13) at two separate locations approximately 18 miles northwest of Cromer and 28 miles north of Cromer in the southern North Sea 


Partrac is to deploy two large metocean buoys (E03 and E13) at two separate locations approximately 18 miles northwest of Cromer and 28 miles north of Cromer in the southern North Sea 

 

Once deployed, please maintain a 500m exclusion around each buoy.

 

Deployment is estimated to be carried out over one day from the 5th May 2021, weather permitting.

 

The deployments will be completed by the vessel Isle of Jura.

 

The surface buoys will include: AIS; A day shape of yellow St Andrews Cross; radar reflector; and yellow navigation light.

 

The metocean buoys record meteorological data and are anchored to the seabed by means of a mooring chain and a ground weight. The buoy has dimensions of 4m x 4m, and when deployed the tallest mast on the buoy sits approx. 4m above the water line  

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