Search

During May 2021 Seaway Heavy Lifting, on behalf of HSM and IOG, will be installing a steel jacket and topsides at block ref 49/21, the Southwark Field.

The work will involve the utilisation of heavy lift vessel (HLV) Seaway Strashnov to lift the structures from a cargo barge onto a pre-determined seabed location.

In addition to the HLV there will be towing  vessels and a barge in the vicinity.

It is planned for the HLV to operate in Dynamic Positioning (DP) mode.

Upon installation of this permanent fixed structure (extending above the sea surface) a permanent 500-metre radius safety zone shall come not effect and it is requested that no vessel shall transit within 500-metres of the Southwark Platform locality.

During May 2021 Seaway Heavy Lifting, on behalf of HSM and IOG, will be installing a steel jacket and topsides (adjacent to the Dudgeon Wind Farm) at block ref 48/23, the Blythe Field.

The work will involve the utilisation of heavy lift vessel (HLV) Seaway Strashnov to lift the structures from a cargo barge onto a pre-determined seabed location.

In addition to the HLV there will be towing  vessels and a barge in the vicinity.

It is planned for the HLV to operate in Dynamic Positioning (DP) mode.

Upon installation of this permanent fixed structure (extending above the sea surface) a permanent 500-metre radius safety zone shall come not effect and it is requested that no vessel shall transit within 500-metres of the Blythe Platform locality.

Note: Pipelines radiating from the platform are trenched and covered below natural seabed level.

See detailed map on our bulletin website

The aim of the survey is to image deep seated crustal structures in the North Sea and a single source of 6,270 cu.in and one cable of 12 km length towed at 15-30m depth (slant) will be used. The survey will be carried out by the seismic vessel M/V Akademik Lazarev (UAJS) and Jan van Gent (YJVF4) will be the support vessel.

There will be two FLOs onboard, one Norwegian from Geograf Maritime and one from SFF Service Limited (Scottish Fishermen's Federation). In addition, the vessel will have MMO and PAM operators onboard. 

Since RDI21 is a very regional survey, there will be some flexibility in deviating from the preplotted survey lines, if needed.  

(Please note that d/t limitations in the number of coordinates possible to submit in the online notice submission system, the survey has been divided into several notices where each notice contains the lines that are planned to be acquired within the time frame specified in the heading. The .png map shows the full RDI21 2D survey outline.)

The aim of the survey is to image deep seated crustal structures in the North Sea and a single source of 6,270 cu.in and one cable of 12 km length towed at 15-30m depth (slant) will be used. The survey will be carried out by the seismic vessel M/V Akademik Lazarev (UAJS) and Jan van Gent (YJVF4) will be the support vessel.

There will be two FLOs onboard, one Norwegian from Geograf Maritime and one from SFF Service Limited (Scottish Fishermen's Federation). In addition, the vessel will have MMO and PAM operators onboard. 

Since RDI21 is a very regional survey, there will be some flexibility in deviating from the preplotted survey lines, if needed.  

(Please note that d/t limitations in the number of coordinates possible to submit in the online notice submission system, the survey has been divided into several notices where each notice contains the lines that are planned to be acquired within the time frame specified in the heading. The .png map shows the full RDI21 2D survey outline.)

The aim of the survey is to image deep seated crustal structures in the North Sea and a single source of 6,270 cu.in and one cable of 12 km length towed at 15-30m depth (slant) will be used. The survey will be carried out by the seismic vessel M/V Akademik Lazarev (UAJS) and Jan van Gent (YJVF4) will be the support vessel.

There will be two FLOs onboard, one Norwegian from Geograf Maritime and one from SFF Service Limited (Scottish Fishermen's Federation). In addition, the vessel will have MMO and PAM operators onboard.

Since RDI21 is a very regional survey, there will be some flexibility in deviating from the preplotted survey lines, if needed.  

The survey has been divided into several notices where each notice contains the lines that are planned to be acquired within the time frame specified in the heading. The .png map shows the full RDI21 2D survey outline.

We will be deploying two scientific Acoustic Doppler Current Profilers on the sea bed for 6-12 months from May 2021 to collect currents data for environmental monitoring and hydrodynamic model validation.  The instruments have no surface markers and will be recovered using acoustic releases.  One of the instruments will be inside a low profile trawl-resistant frame (Little Minch, west of Skye) and one inside a steel frame (Loch Erisort).  See attachment for photos of the frames, a chart with their position and their positional details.

See detailed map on our bulletin website

See detailed map on our bulletin website

Colour: Bright Yellow

Dimensions: 750mm Ø x 391mm

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.

Pre-lay moorings to be installed for the West Hercules from earliest 20th May. 

Mooring installation will be protected by a Guard Vessel until the rig arrives on location

AkerBP ASA is conducting a 4D seismic survey over the Boyla field. It is anticipated that the UK section will take a maximum of four days to complete. The Survey Area at Boyla will cover 37 square kilometres in UK waters. The Greater Work Area will cover 151 square kilometres in UK water. The Company will conduct line changes in the greater work area.

Seven Oceanic RSV – Wet Store Spools Ph1 (Subsea 7) Penguins Redevelopment Project - Infield 10/04/21 – Depart Field 20/04/21

Main scope will include the wet storing of new tie-in spools within the Penguins Field and also the Brent C 500m zone.  Additional activities will include the installation of concrete corner blocks adjacent to the newly installed towheads and the recovery of buoyancy tanks from the newly installed bundle systems.

Seven Atlantic DSV – DC2 Bundle XT Tie-Ins (Subsea 7) Penguins Redevelopment Project - Infield 05/05/21 – Depart Field 19/04/21

Greenfield tie-in work within the Penguins field, connecting the PAN-N and Tybalt flowbases to the newly installed DC2 bundle.  The scope will include barrier testing, spool deployment and installation, TSCJ installation and subsequent mattress and grout bag protection works.

Seven Atlantic DSV (Subsea 7) Gas Export & Tybalt Tie-ins - Penguins Redevelopment Project - Infield 03/05/21 – Depart Field 16/05/21

• Gas Export Tie-ins at DC5
• Tie-in spools between RBM & GE Pipeline
• Tie-in Spools at Tybalt

DEME Flintstone Rockdump Vessel - Rockdumping at DC2 Bundle - Penguins Redevelopment Project - Infield 23/06/21 – Depart Field 27/06/21

• Partial DC2 Bundle rockdump

Seven Pegasus DSV (Subsea 7) Tie-ins, Leak Test and De-watering - Penguins Redevelopment Project - Infield 19/05/21 – Depart Field 26/07/21

• Gas Export Tie-Ins, Leak Test and De-watering 
• Complete D7 Tie-ins
• Brownfield Bundle Tie-ins (DC2)
• DC2 Bundle Tie-Ins
• Brownfield Bundle Tie-ins (DC3 midline)
• UT Checks (Brownfield)

DEME Rockdump Vessel – Rockdumping - Penguins Redevelopment Project - Infield 30/06/21 – Depart Field 03/07/21

• Re-instatement of Rockdump at DC4 DBBV
• Partial DC2 Bundle Rockdump

The work will utilise the DP2 cable laying vessel Elektron call sign: LADO, support Vessel Forth Joustercall sign: 2BME4 and support craft Celtic Trader, Celtic Mara, Celtic Nomad and Celtic Voyager.

The installation and preparation (PLGR) work aims to be concentrated within the existing cable route corridors, defined by the coordinates as listed below. These operations will commence during an appropriate weather and tidal window following 09/05/2021 and will continue over a planned minimum period of 14 days, weather permitting.

Work Description:

Cable installation will be completed by Elektron, during which time it will be assisted by Forth Jouster, Athenia and support craft Celtic Trader, Celtic Mara, Celtic Nomad and Celtic Voyager. Cable lay operations will be conducted on a 24 hour basis. Prior to installation, Forth Jouster will complete PLGR route clearance operations on both planned cable routes. Other vessels should maintain an appropriate and safe distance of 500 m when passing the vessels whilst operational and should pass at the lowest possible speed to avoid vessel wash effects. Passing vessels should contact operational vessels on VHF prior to passing. Vessels will be working throughout 24 hours and will display appropriate day shapes and lights during reduced visibility and night operations. During operations, vessels will be restricted in their ability to manoeuvre.

Primary Equipment for Cable Installation and Diving Operations

Landfall Preparation and Cable Installation Please be advised that the second of three export cable pull-ins is complete and the SW cable (yellow, central circuit shown in Figure 1) is exposed on the beach prior to burial works commencing. The Maagd will be leaving site on or around 10th May 2021 and returning approximately 2 weeks later. In addition to this 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:

The vessel will be using a multibeam echosounder throughout the survey, which will be running 24 hour operations. The survey should be complete within 14 days, dependant on weather.

The vessel will be using a multibeam echosounder throughout the survey, which will be running 24 hour operations. The survey should be complete within 14 days, dependant on weather.

Full asset inspection survey of all ENI Liverpool Bay assets comprising multibeam echo sounder and towed side scan sonar data acquisition. Survey includes:

Acoustic survey of of all LBA pipeline assets

Acoustic survey of all LBA platform approach zones

Acoustic survey of all LBA wellheads

Acoustic survey of Resurgam wreck

All works will be undertaken using the CWIND Challenger operating from Conwy. The vessel will be towing equipment up to 150m behind the vessel and will be displaying restricted maneuverability shapes/lights at all times in accordance with regulations. A wide berth is requested at all times when vessel operating. A VHF watch (Ch16) will be maintained at all times. 

As part of the Hywind Scotland Wind Park, Equinor has subcontracted Akvaplan-niva to perform a survey using an autonomous vehicle – Sailbuoy – in the park area. The Sailbuoy is only 2 meters long and weighs 60 kgs. It will be deployed in second half of May in Bergen, Norway, and sail to Hywind Scotland. The time needed from Bergen to Hywind Scotland is approximately 21 days (~arrival primo/medio June). The Sailbuoy will have a pre-programmed mission plan, and will communicate to shore via satelittes. The Sailbuoy is driven by wind and sun, and the vehicle is equipped with solar panel and an echosounder as well as sensors for temperature, salinity and fluorescence.

The purpose of the study is to collect relevant data on fish in the Hywind Scotland area using instrumented glider. The method is expected to mainly give data on prevalence and biomass, and less information on biodiversity. The data gathering in Hywind Scotland will take approximately 30 days (~until primo/medio July). After ended campaign in the wind park, the Sailbuoy returns back to Bergen for retrieval (~primo August). The results from the glider campaign is important also for further technology development.

The Sailbuoy is collision and shock proven. It will be labelled with contact information.

Callisto ZM exploration well 49/22-6Z

53°14'31.96"N  2°23'16.54"E

Start Date: 25/05/21    End Date: 29/06/21

Throughout well abandonment operations there will be a dedicated ERRV on location monitoring the surrounding sea area.

The Jack up Barge HAEVA, will depart from Amethyst A1D (UKCS 47/14) and transit to the Lancelot Area Pipeline System (LAPS) field to the Galahad Installation, where it will commence HCF operations.

A 50-metre exclusion zone is advised around the anchor chain for safety reasons.  

Mariners are advised of the following vessels commencing operations at the Triton Knoll Offshore Wind Farm as outlined below:

Mariners are advised of the offshore construction status at the Triton Knoll Offshore Wind Farm:

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.

Mariners are advised that all foundations monopiles have been installed and all inter-array and export cables have been installed, buried and need to be assumed as energised / live at all times.

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)

The Fugro Meridian survey vessel will be mobilising from the port of Portsmouth on or around 6th May 2021.  The vessel will be undertaking multibeam echo sounder and sidescan sonar survey operations in the vicinity of the York platform in UKCS block 47/3.  The survey location is outlined in the attached file and comprises an area of approximately 0.5 km2.

The vessel is likely to be on location for a period of 1 day.  

This schedule is subject to change depending on operational demands.  

The main DBA and DBB landfall HDD pilot drilling will commence beyond the MHWS location from the 4th January 2021. A survey will then be carried out once each of the pilot drills has punched out onto sea bed to confirm accurate drill positions. The first survey is expected to be around 6th February subject to drilling progress.

The survey will be a one-day operation starting early morning. Weather limitations are:

Wave height -0.5m, Wind Speed – 6m/s.

MV Pulsar will have survey equipment deployed into the water, pole mounted on the vessel’s port side and will be travelling at 2-4kts during the survey operation. The vessel will display lights and shapes appropriate to the operation.

The East Anglia HUB offshore windfarm site is split onto three zones: East Anglia ONE North (EA1N); East Anglia TWO (EA2); and East Anglia THREE (EA3).  In 2021, Fugro will be initially operating in EA1N only with operations commencing on 5th February 2021, with operations in EA2 and EA3 commencing subsequently.

This Notice to Mariners will be updated and reissued periodically as additional vessels are planned to come on site.  For operations in 2021, current planning indicates a total of 8 vessels being on site between the period 5th February and 18th August 2021. It should be noted these dates are subject to change and the total number of vessels could increase.

10 mooring line trenches, varying in length from 70m to 180m; up to 8 metres wide and up to 9 metres deep. These trenches are steep-sided (in many cases vertical, cut into the clay seabed).

10 anchor scars, consisting of shallow trenches (20-90 metres long), shallow-sided depressions (less than 2 metres deep) but with areas of significantly disturbed seabed, including clay boulders up to 3 metres in size.

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.

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  

See detailed map on our bulletin website

The planned survey works will be completed by personnel from Titan Environmental Surveys Ltd on either the Titan Endeavour or the Titan Discovery. The work is expected to take approximately 24 hours in suitable weather conditions, although adverse weather conditions may mean that the total estimated survey time is spread over several days. The survey will be carried out along NNE – SSW orientated survey lines and some tie lines perpendicular to the main survey lines will also be surveyed.

DSV (Seven Falcon) – Spool & Umbilical Installation (Subsea 7) Arran Field Development - Infield 21/04/21 – Depart Field 03/05/21

• 12” spool installation at Arran South
• Hook up umbilicals at Arran South
• Mattress protection at Arran South (12” spools and umbilicals)
• Scoter spool removal at Shearwater
• Umbilical crossing mattress installation at Shearwater
• 12” spool install and mattressing at Shearwater

DSV (Seven Falcon) – Pipeline Leak Test and Dewatering (Subsea 7) Arran Field Development - Infield 30/04/21 – Depart Field 21/05/21

• 12” spool installation at Shearwater
• Pipeline leak test at Columbus
• Mattress Reinstatement
• Dewater pipeline system at Arran North
• Umbilical tie-ins at Arran South
• 6” XT spools & TSCJ at Arran South
• Tree spool leak test
• OCH install at Arran South

During April and May 2021 Titan Environmental, on behalf of IOG, will be performing surveys, primarily located at the platform location, with additional surveys along the pipeline route to the south:

1. a pre-installation debris and bathymetric survey for the platform will cover an area approximately 700-metres x 700-metres, centred at the proposed Southwark location, as listed below, 
2. a pre-installation debris and bathymetric survey of the proposed 24-inch pipeline between the proposed Southwark platform location and the Thames pipeline.

The work will consist of using vessel mounted and towed sensors to scan the seabed, with no intrusive works.

During April and May 2021 Titan Environmental, on behalf of IOG, will be performing surveys, primarily located within the +/-100 metre pipeline fishing exclusion/safety zones at the following locations:

1. A pre-installation survey for an umbilical, which will be laid immediately adjacent to the 6-inch pipeline between Elgood and Blythe, 
2. A survey of the existing 6-inch pipeline between Elgood and Blythe,
3. A survey at the Blythe platform site, partly covered by the pipeline exclusion/safety zones,
4. A survey of a site connecting the 12-inch Blythe pipeline to the 24-inch Thames pipeline connection site.

The work will consist of using vessel mounted and towed sensors to scan the seabed, with no intrusive sensors.

Note fishing has been observed over subsea infrastructure including 40m L x 35m W x 11H Template structure that is within a 500m Safety zone.

The safety zone is to protect all parties and is a legally restricted area that can only be entered under Special Circumstances;

             1. To attempt to save a life or property,

             2. Owing to bad weather ,

             3. When in distress.

All vessels including fishing vessels must not fish within or transit over the 500m safety zone.

NRW and the MMO have issued Tarmac Marine Ltd and Hanson Aggergates Marine Ltd. new marine licenses to dredge marine aggregates from Area 531, located in the Severn Estuary.  Dredging is expected to commence, within a restricted dredge zone, no earlier than 1st June 2021.

Pipeline surveys identified twenty freespans along the PL311 Sean Field to Bacton pipeline that require remediation.  The freespans are located between KP 51.8 and KP 93.4 (Note: KP 0 is near the Sean Platform and KP 106 is near the shore approach at Bacton).  The cause of the freespans is expected to be scour caused by high seabed currents and the mobile nature of the sediment.  Graded rock (2ʺ - 8ʺ) will be accurately deposited from a fall-pipe vessel to fill in the spans and create rock berms up to the pipeline centreline that will support the pipeline and discourage future scour .  Prior to rock deposition, an as-found, pre-inspection survey will be undertaken to identify if there is any debris requiring removal.

SEAGREEN WIND ENERGY LIMITED - THE ENERGY ACT 2004

NOTICE OF APPLICATION FOR SAFETY ZONE SCHEME DURING CONSTRUCTION AND MAJOR MAINTENANCE OF THE SEAGREEN OFFSHORE WIND FARM

THE ELECTRICITY (OFFSHORE GENERATING STATIONS) (SAFETY ZONES) (APPLICATION PROCEDURES AND CONTROL OF ACCESS) REGULATIONS 2007 – STATUTORY INSTRUMENT 2007 NO 1948

Notice is hereby given that Seagreen Wind Energy Limited (Seagreen) on behalf of Seagreen Alpha Wind Energy Limited (Company Number 07185533) and Seagreen Bravo Wind Energy Limited (Company Number 07185543), both having registered office at No. 1 Forbury Place, 43 Forbury Road, Reading has applied for consent from Marine Scotland as set out in the Energy Act 2004 and the Electricity (Offshore Generating Stations) (Safety Zones) (Application Procedures and Control of Access) Regulations 2007 (SI No 2007/1948) for safety zones as follows, for the previously consented Offshore Renewable Energy Installation known as the Seagreen Offshore Wind Farm, during the construction and major maintenance phases. The following safety zones are being applied for:

• 500 metre (m) ‘rolling’ safety zones at each Wind Turbine Generator (WTG) and/or its substructures and foundations whenever construction is ongoing (as indicated by the presence of a construction vessel stationed at the structure).
• 50 m pre-commissioning safety zones at each partial or complete WTG and/or its substructures and foundations, where construction is not ongoing up until the point of commissioning of the wind farm.
• 500 m safety zone around any WTG and/or its substructures where major maintenance is being undertaken during the operational phase (as indicated by the presence of a major maintenance vessel stationed at the structure, where “major maintenance” is as defined in the Electricity Regulations 2007 (SI No 2007/1948) – further details are available in the application document as per the below).

It is noted that this application is being made for the WTGs only – a separate application has been submitted for the offshore substation platforms. Further details are available in the safety zone application which is available for download direct from Seagreen at https://www.seagreenwindenergy.com, or alternatively from the Marine Scotland website at http://marine.gov.scot/ml/seagreen-alpha-and-bravo-offshore-wind-farms. Alternatively, a request to receive a hard copy may be made in writing to 1 Waterloo Street, Glasgow, G2 6AY. Any person wishing to make representations to the Secretary of State about the application should do so in writing to the Scottish Ministers, c/o Marine Scotland – Licensing Operations Team, Marine Laboratory, PO Box 101, Victoria Road, Aberdeen, AB11 9DB or MS.MarineRenewables@gov.scot, stating the name of the proposal and nature of their representations, not later than 28 days from the date, or latest date of this notice.

Fair Processing Notice

The Scottish Government’s Marine Scotland Licensing Operations Team (“MS-LOT”) determine applications for marine licences under the Marine (Scotland) Act 2010, the Marine and Coastal Act 2009 and section 36 consents under The Electricity Act 1989 (as amended). During the consultation process any person having an interest in the outcome of the application may make a representation to MS-LOT. The representation may contain personal information, for example a name or address. This representation will only be used for the purpose of determining an application and will be stored securely in the Scottish Government’s official corporate record. Representations will be shared with the applicant and/or agent acting on behalf of the applicant, any people or organisations that we consult in relation to the application, the Directorate of Planning and Environmental Appeals should the Scottish Ministers call a PLI and, where necessary, be published online, however personal information will be removed before sharing or publishing.

A full privacy notice can be found at: https://www.gov.scot/policies/marine-and-fisheries-licensing/marine-licensing-operations-team-privacy-notice. If you are unable to access this, or you have any queries or concerns about how your personal information will be handled, contact MS-LOT at: ms.marinerenewables@gov.scot or Marine Scotland - Licensing Operations Team, Marine Laboratory, 375 Victoria Road, Aberdeen, AB11 9DB.

Decommissioning works on the UKCS will commence late May 2021 with disconnection and recovery of cut sections of a 10" production pipeline and an umbilical inside the FPSOs 500m safety zone. This in order to disconnect the Brynhild subsea manifold in Norwegian waters from the FPSO Haewene Brim located on the Pierce field in the UK. The works are expected to be completed by late July 2021.

The following vessels will be active during the decommissioning campaign;

Location Coordinates

Brynhild field NCS                                            57° 29.317' N - 002° 18.039' E 

Pierce Field Riser base manifold UKCS       57° 09.461' N - 002° 17.288' E

For further information, please contact:

Geir-Olav Fjeldheim, Lundin Energy Norway AS, Tel: +47 926 64 830 email: geir-olav.fjeldheim@lundin-energy.com

The Normand Flower (Call Sign: LAXN7) will be carrying out a Soil Investigations within the area noted below:

Survey is expected to start on 8th May and take approx. 2 weeks to complete.

The Deep Arctic (Call Sign: C6XW3) will be carrying out Umbilical Repair activities BETWEEN the various locations noted below :

Start date = 11th May 2021

Duration expected to be approx. 45 Days

The Far Superior (Call Sign: LATJ7) will be carrying out Umbilical Repair Support & Testing activities BETWEEN the various locations noted below :

Start date = 13th May 2021

Duration expected to be approx. 50 Days

The subsea service company DeepOcean will perform a series of campaigns to prepare, install, commission and protect a new subsea drilling template on the Yme field development. The subsea activities will result in these subsea assets being temporarily exposed with a reduced level of overtrawlability. Trawling within a Caution area of radius 300m around 57°45' 21.669"N 004°22' 04.416"E(WGS 84) may potentially lead to injury, loss of trawling/ fishing equipment, and/or damage to DeepOcean and/or Repsol Norge AS assets.

The location will be marked by a virtual AIS buoy, monitored by the Equinor Marin radar surveillance, and by the Guard vessel Esvagt Corona during this period. Equinor Marin, the Esvagt Corona and Yme Platform Mærsk Inspirer will attempt to contact fishing vessels approaching the aforementioned location.

For further information: Lee Cornwall, Triton Knoll Offshore Wind Farm, Tel: +44 (0) 7384 807293, email: l.cornwell@tritonknoll.co.uk

Triton Knoll Marine Coordination Centre, Mob Tel: +44 (0) 7384 807528, Tel: 0045 8213 6219, Email: tkmcc@smchse.com

4 x clump weights to be installed for Mariner 8Y wellhead load relief system around 5th May.

This will be followed up with rig mooring pre-lay later in May for planned rig (West Hercules) arrival in June.

All subsea components will be guarded by the Mariner Field ERRV until the rig arrives.  

Premier Oil are planning to undertake a cross asset inspection campaign using the Subsea 7 chartered MMA Pinnacle ROVSV. Fields to be inspected include; Rita & Hunter, Johnston.

The survey will last 72 days in total, however each site to be surveyed will last 2-20 days, depending on the location and any operational delays e.g. weather.

The MMA Pinnacle is scheduled to mobilise Saturday the 1st May 2021 to first survey location; Rita & Hunter.

Start date: 1st May 2021 and end date of 7th August 2021

Premier Oil are planning to undertake a cross asset inspection campaign using the Subsea 7 chartered MMA Pinnacle ROVSV. Fields to be inspected include; B-Block (encompassing Balmoral, Stirling, Glamis, Blair, Brenda and Nicol), Caledonia, Nelson, Huntington, Catcher (encompassing Burgman, Varadero and Wreck sites).

The survey will last 72 days in total, however each site to be surveyed will last 2-20 days, depending on the location and any operational delays e.g. weather.

The MMA Pinnacle is scheduled to mobilise Saturday the 1st May 2021 to first survey location; Rita & Hunter.

Start date: 1st May 2021 and end date of 7th August 2021

Premier Oil are planning to undertake a cross asset inspection campaign using the Subsea 7 chartered MMA Pinnacle ROVSV. in the Solan Field

The survey will last 72 days in total, however each site to be surveyed will last 2-20 days, depending on the location and any operational delays e.g. weather.

The MMA Pinnacle is scheduled to mobilise Saturday the 1st May 2021 to first survey location; Rita & Hunter.

Start date: 1st May 2021 and end date of 7th August 2021

See detailed map on our bulletin website

See detailed map on our bulletin website

See detailed map on our bulletin website

See detailed map on our bulletin website

The PBLJ is currently carrying out P&A operations at the MacCulloch West Drill Centre (WDC). During early May 2021 the rig will be towed to the East Drill Centre (EDC) to P&A the E1 subsea well.

An attendant vessel will guard the pre-laid moorings until rig arrival.  Moorings are up to ~2300m from rig centre. Following rig arrival there will be a dedicated ERRV on location monitoring the surrounding area. 

AkerBP ASA is conducting a 4D seismic survey over the Alvheim field. It is anticipated that the UK section will take in total a maximum of six days to complete, but not acquired in one go. The Survey Area at Alvheim will cover 50 square kilometres in UK waters. The Greater Work Area will cover 180 square kilometres in UK water.

The operations will be carried out in the UK EEZ from 24 April 2021 to 30 July 2021. However, please note the start date and the duration of the activity is weather dependant.

OSV Nautilus will be towing stern deployed equipment and will be restricted in manoeuvrability. All vessels operating within this area are requested to keep their distance, maintaining at least the 500m safety zone around the vessel, and pass at minimum speed to reduce vessel wash.

Throughout operations, the vessel will be displaying the appropriate lights and shapes as required under the COLREGS Rule 27(b).  

See detailed map on our bulletin website

An unmanned survey operation to collect hull mounted bathymetry data using 3 vessels. The vessels are all fully controlled 24 hours a day using satellite communications. During periods of bad weather XOcean will use Hartlepool or Grimsby to transit to for shelter. The area of operation will cover the project area at Endurance and two proposed pipeline route corridors.

See detailed map on our bulletin website

The North Falls Offshore Wind Farm site is located to the east of Felixstowe and bordering the Greater Gabbard and Galloper existing wind farms

Fugro Mercator - Offshore Geophysical Investigation

The geophysical operations at the North Falls site are expected to be carried out from the Fugro Mercator call Sign: C6DU5 from 10th May 2021 for approximately 8-9 weeks. Fugro Mercator will be conducting operations across the Main Array and Export Cable Route areas >10m LAT.

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 1,000m 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 Investigation

The environmental operations at the North Falls site are expected to be carried out from the Curtis Marshall call sign: 2HWN3 from 1st July 2021 for approximately 7 days. 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 1,000m 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 Geophyscial Investigation

The geophysical operations on the North Falls 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 call sign: 2HCS2 from 15th May 2021 for approximately 10 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.

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.

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

Geophysical Survey

ABPmer will be conducting a geophysical survey in and around the Kingmere MCZ in May 2021. It is expected that survey operations in the area will commence on w/c 17th May for a period of 6 days. The survey will be conducted using the ‘Wessex Explorer’ using a vessel mounted multibeam echosounder.  Multibeam data will be acquired in nine small survey areas as detailed below. ABPmer completed these works successfully in previous years and understand the importance of working with the fishing industry and as such will always work around fishing gear and activity that they are made aware of.

Drop-Down Video Survey

Three one-day drop-down environmental video surveys will be conducted within the same survey areas. These will be conducted on w/c 31st May, w/c 5thJuly and w/c 19th July. The video will be towed up to 100m astern of the Littlehampton Harbour Board vessel, ‘Erica’.

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:

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.

The Northern Producer FPF has been removed from it’s moorings and towed to port for decommissioning but the subsea assets within the Northern Producer FPF 500m zone will remain in place on the seabed and could pose a snag hazard to fishermen therefore the Thistle Alpha Platform ERRV will act as a guard vessel until the 500m zone clearance is performed in 2022.

This includes the 8 No Risers draped over the Mid Water Arch (MWA), the MWA Clumpweight Guide Frame, the Riser Base Structure (RBS) and the surface laid pipelines / Umbilicals.  The MWA will remain in the water column at a depth of 112m and will remain tethered to the seabed via the clumpweight guide frame. The risers will remain draped over the MWA with one end on the seabed and the other end will remain connected to the RBS so that they remain stable. The existing stabilisation mattresses will remain in place over the surface laid pipelines/umbilicals.

The Tolmount minimum facilities platform has been installed on behalf of the Tolmount Development Project (comprising Premier Oil UK Limited, ODE Asset Management Limited and Humber Gathering System Limited (HGSL)) in UKCS Block 42/28d and an ERRV remains on location in field. 

The Valaris123 Jackup Drilling Rig is in position over the Tolmount platform, with drilling operations underway.  Drilling activity is planned for approximately 12 months (subject to further Kingfisher bulletins). NW well is now completed and the Valaris 123 has skidded to the SE well slot to recommence drilling operations.

Please note that an Offshore Development Area has also been requested for the Tolmount Development Project work.

See detailed map on our bulletin website

See detailed map on our bulletin website

See detailed map on our bulletin website

See detailed map on our bulletin website

See detailed map on our bulletin website

See detailed map on our bulletin website

See detailed map on our bulletin website

Arran North 2 is completed but does not yet have the Xmas Tree installed.

Arran North 1 will be left with the rigs blow out preventer installed on the wellhead as it will not be possible for the rig to recover it before departure.

The approximate dimensions of the Debris Cap is 4.5m x 3.9m x 1.4m with a weight of approximately 3.5 tonnes. It is not known whether the Debris Cap is lying within a 500m zone of the well. A 200m x 200m area centred on the well has been searched, with no sight of it. Therefore the exact location of the Debris Cap is unknown. The loss of the Debris Cap leaves the NW Schooner wellhead more vulnerable to snagging from trawler/fishing nets. The approximate size of the tree with over trawl legs deployed is 7.8m x 7.8m x 6m high.

The Well Enhancer (Call Sign: 2ARS4) will be carrying out a Light Well Intervention (LWI) programme at the

Ellon / Forvie / Jura locations noted below:

Start date = 15th April 2021

Duration expected to be approx. 57 Days to 11th June 2021

The Flotel Safe Caledonia is alongside ELGIN PUQ – within 500m zone. Providing additional accommodation for ongoing fabric maintenance campaign.

The survey vessel, Geo Ranger will utilise towed array equipment with side scan sonar, sub bottom profiler and magnetometer to conduct the survey of all 114 Wind Turbine Generatorpositions and 1 Offshore Platform location within the Seagreen site boundary.The survey vessel is expected to arrive at site on or around Sunday the 21st of March and remain until August 21, weather dependant.

See detailed map on our bulletin website

See detailed map on our bulletin website

See detailed map on our bulletin website

Subsea Wells Operations - 48/30-15z Subsea Well :  Well Preparation for Flushing /  Preparation for Well Plugging & Abandonment 

- 48/30-8 Subsea Well :  Well Preparation for Flushing /  Preparation for Well Plugging & Abandonment 

Platform PL83 Pipeline Operations

- PL83 Pipleine Mattress & Spool Removal (35-50mts) from Jacket Base out to circa 50mts in preperation of Rig arrival.

All Saturation Diving and ROV works inside 500mtr zone of each asset safety zone. 

Vessel will transit within Hewett Field from location to location during the course of the saturation diving works.

Decommissioning and removal of the Brae Bravo Platform will be undetaken throughout 2021. Removal of topside modules and flare bridge will be undertaken ahead of removal of the main jacket in 2022.

Vessels will be operating near to and within the 500m safety zone as indicated.

Thialf

The Thialf will be alsongside the Brae Bravo platform between the 15th of April 2021 and the 24th of May 2021.

Bylgia

The Bylgia will enter the worksite between the 1st of May 2021 and 3rd of may 2021.

Sleipnir

The Sleipnir will be alsongside the Brae Bravo platform between the 15th of April 2021 and the 24th of May 2021. The Sleipnir will then return to the field to continue removal works circa 15th July2021.

A pipeline bundle will be transported using the Off Bottom Tow Mode (OBTM) and Controlled Depth Tow Method (CDTM). The bundle will be launched from Sinclair's Bay North of Wick and towed to the installation area suspended between one or more lead tugs and a trail tug and accompanied by a guard vessel and ROV support vessel.

See detailed map on our bulletin website

See detailed map on our bulletin website

Destination: Victor JM 49/17-11 development well 53° 21' 03.22" N 2° 17' 43.46" E Throughout well abandonment operations there will be a dedicated ERRV on location monitoring the surrounding sea area

Inter Array Cable Termination and Testing.

Personnel and equipment for these works will be based on the Offshore Support Vessel, Siem Day. Personnel and equipment will be transported by Siem Day between OSPs and WTGs. Deep Cygnus and Siem Day will both be completing Testing and Termination works on the cable routes identified in Figure 3.

Siem Day will be restricted in their ability to manoeuvre during transfer of personnel and equipment to and from the OSPs and WTGs.

The overall work scope will be carried out in 2 campaigns – Campaign 1 commencing 11/11/20 to 23/01/21, now complete, and Campaign 2 commenced 24/02/21 and is scheduled to be completed on 11/06/21

Fugro Venturer, will conduct a geophysical survey at the Dogger Bank B wind farm (DBB) array site in the Southern North Sea, between 4th April 2021 and approximately 25th May 2021. Survey operations will be continuous, 24 hours a day, the vessel towing subsea sensors up to approximately 100m behind the vessel. During operations the vessel will be restricted in its ability to manoeuvre and will display the appropriate day shapes and lights.

The Fugro Venturer will be surveying prescribed survey lines, which will require large turning circles. It is therefore requested that all vessels maintain a minimum 2,000m separation distance from the survey vessel and pass at reduced speed.

JSA and Task plan are being compiled for a recovery with vessel crane and ROV intervention.

As part of the initial drilling operations in 2019, the wellhead assembly was fitted with a cap containing a transponder for the relaying of monitoring data from downhole gauges and a basket was placed on the seabed adjacent to the well containing associated wireless telemetry equipment. 

It has now been observed that both the cap and the basket are no longer present. 

PFML are on location conducting an ROV based visual inspection of the suspended Well 205/26b-14 in the Lincoln field west of Shetland.  The Olympic Taurus arrived at the well location and deployed the ROV for inspection at the seabed.  On inspection neither the cap or basket were present.

No instances of snagged fishing gear or other debris have been identified on the wellhead. 

The risk is that trawled gear may snag on the basket and cause damage.  It is expected that he basket is too light to trap the vessel and cause any significant threat.  The cap is smaller, so there is a risk the nets may lift the cap to surface and cause a risk to personnel on the vessel.  However, as the cap is now off the wellhead, it is likely to be sitting flush with the seabed and is unlikely to be picked up by gear working in this area, as it is typically designed to bounce over the top of seabed obstacles (like the many boulders in the area). 

The vessel and ROV has conducted a search around the well, 250 m x 250 m grid with 20m line spacing, and not identified the objects.

PFML intend to go back to abandon the well this year, which would include an as left survey, so further efforts will be made then to locate and recover.  If not found, no other action will be taken.

See detailed map on our bulletin website

See detailed map on our bulletin website

See detailed map on our bulletin website

See detailed map on our bulletin website

The work will consist of using the vessel Titan Discovery, equipped with vessel mounted and towed sensors to scan the seabed, over and on either side of the pipeline, with no intrusive works.

The Safe Boreas accommodation vessel is being located into the Buzzard field for the turnaround period, beginning on the 18th April 2021. The accommodation vessel will use dynamic positioning and will be located within the 500 m exclusion zone of the Buzzard Platform for up to 190 days. The Safe Boreas will be linked to Buzzard QU Platform via a gangway interface.

Additional work will be continuing for the commissioning of the turbine, requiring regular crew boat transfers on a daily basis.

The floating wind turbine KIN-03 complete with assembled wind turbine is moored in its operational location. 

Horizon Artic call sign: CHA2033 will shortly begin a campaign of moorings installation at the Kincardine offshore wind farm.

Estimated Arrival of the Horizon Arctic in the field will be 01/04/2021 and the duration of the installation will be about 7 days. The works expected are as follows:

Cable Guard Vessel: MV Fisher Boys FR54  call sign: MXHY7

Survey operations shall be conducted 24 hours a day and the vessel shall tow subsea sensors approximately up to 100m behind the vessel.  During operations the vessel will have restricted manoeuvrability. The Fugro Venturer will be surveying prescribed survey lines, which will require large turning circles, therefore, it is requested that all vessels operating within this area keep their distance, maintaining at least the 2,000 m exclusion zone around the vessel and pass at reduced speed.

Dredging within Marine Aggregate Licence Area 457 is restricted to two active zones and a third call off zone. In order for dredging to occur within the third call off zone, at least 6 weeks notice is required prior to dredging can commence.

In order for effective implementation and notification, this notice provides sufficient time prior to dredging is scheduled to commence. Dredging is sheduled to commence on the 15/08/2021 for a period of 10 weeks. 

Survey completion is anticipated by the end of July 2021. The full scope of the works is anticipated to take 90 days to complete, with approximately 45 days duration surveying the proposed export cable corridor and 60 days duration surveying the proposed windfarm array areas.

The vessel Northern Storm call sign: MISA7 will be utilised for this survey. A local scout vessel is also contracted to reduce potential for static fishing gear interactions.

The survey area will be covered using a full geophysical survey spread including towed equipment. It is requested that all vessels operating within the area keep a safe distance (at least 500m) and pass at minimum speed/reduced wash.

See detailed map on our bulletin website

See detailed map on our bulletin website

See detailed map on our bulletin website

Mariners are advised that the Titan Endeavour is mobilising to site to carry out survey works that will continue intermittently through 2021.

Activities are being carried out on the Hornsea Project Two Offshore Wind Farm export cable route. Mariners are advised that MaxSea and Olex plotter files of the proposed works area can be provided by the Project’s Commercial Fisheries Advisors at Brown and May Marine Limited and the Project’s onshore fisheries liaison.

Export Cable Installation

Please be advised that Boskalis will be undertaking cable remedial works on or around 15th March 2021 with the BokaBarge 82, Voe Vanguard, Lingestroom and Barney at the location where the cable is currently being wet stored. In addition to this, the Titan Endeavour will be mobilising to site shortly to carry out survey works that will continue intermittently through 2021.

Boskalis are temporarily wet storing a cable at the RCS and the OSS. A guard vessel will be present, subject to safe weather conditions, whilst the cable is wet-stored but it is advised that mariners maintain a safe clearance. 

Note that the vessels will have limited manoeuvrability, some vessels will be operating on anchors, 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.

Export Cable Corridor Boulder Clearance

Please be advised that Hornsea Project Two will be continuing boulder clearance within the export cable corridor using the Atlantic Tonjer call sign: HOBO on or around 25th March 2021.

The works will continue intermittently through to Q2 2021. This Notice will be updated and re-issued when works are completed.

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.

Array Cable Seabed Preparation & 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.

4 x Metocean monitoring buoys will be in place at the Rosebank Field until approximately Q4 2021.

3 of these buoys are subsurface with only the wave monitoring buoy on the surface.  

The wave buoy is painted yellow, equipped with solar panels, flashlight, active and passive radar reflectors. The active radar reflector responds to interrogating X-band radar (9.3-9.5 GHz)

See detailed map on our bulletin website

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.

See detailed map on our bulletin website

Two jack-up vessels, Capall Mara (MBSF3) and C57 Red Squirrel (J8B5722), will carry out a small amount of seabed preparation operations and undertake trenching works along a short section of the nearshore cable route.

The Capall Mara backhoe dredger will work along the two cables routes within the nearshore area, a first pass will be made where the vessel will reposition boulders between KP0.65 and KP1.4 followed by a second pass of each route where the vessel will excavate a trench within which the cable will be laid.

Excavated material will be temporarily repositioned to the side of the trench and will be backfilled by the Capall Mara once the nearshore cable installation is completed.

C57 Red Squirrel will work at KP0.65, to excavate two pits at the existing HDD exits and conduct minor construction works associated with the HDD exit point. The jack up vessel C57 Red Squirrel will arrive on site supported by two tugs, Forth Trojan (2FYM4) and The Battler (MGHD9).

A Crew Transfer Vessel, Celtic Guardian (21ZH5), will transfer personnel between the Capall Mara and C57 Red Squirrel and Eyemouth harbour each day. Celtic Guardian will also support with periodic minor surveys of the route. A dive vessel, CRC Tempest (MYUY7) will also work alongside the C57 Red Squirrel providing dive support associated with the minor HDD Construction works, as required.

Vessels are requested to remain at least 500 metres away from the Capall Mara and C57 Red Squirrel. Static fishing gear is requested to remain removed from the updated exclusion area

Area of Operations Mariners are advised that the Capall Mara and C57 Red Squirrel, alongside a number of supporting vessels, will be mobilised to work within the nearshore area of the NnG Export Cable Corridor' The nearshore exclusion zone will replace the existing exclusion area in place from the date of this notice.

Schedule The pre-enabling construction works are due to recommence on the 13th March 2021, at the earliest, and is expected to last approximately six weeks, until 30th April 2021, weather dependent. After this work, the preparation for cable installation will commence, in early May 2021, ahead of cable installation in June and July 2021. A further notice to mariners will be issued outlining the next phase in more detail.

Weather permitting, construction works will be carried out on a continuous basis (i.e. 24-hour working, seven days a week) on the Capall Mara and on a daytime only basis (i.e. 12-hour working, seven days a week) on the C57 Red Squirrel.

The HAEVA Mobile Offshore Decommissioning Unit (Modu) will depart from Vlissingen in the Netherlands 3rd March 2021 (dependent on weather) and transit to the Amethyst field, where it will commence Hydrocarbon Free operations.

A-2-Sea Solutions Ltd will be operating the vessel 'Cerys Line' on a 24-hr basis. The 'Cerys Line' (26.1m LOA) will be underway throughout operations, sailing survey lines at 5-12 knots. The 'Cerys Line' will exhibit the lights and shapes prescribed by the International Regulations for Preventing Collisions at Sea and will maintain a listening watch on VHF Channel 16.

Please not that no towed equipment is to be deployed, this is an echosounder survey for nautical charting.

The current profiler is scheduled to be deployed in early April 2021 by the vessel 'Cerys Line'. The current profiler will be isolated from the surface completely with no buoys or markers attached. The survey frame is approximately 1m high and will be attached to a clump weight by a weighted rope. 

The current profiler will be in position on the seafloor for a minimum period of 30 days.

Following a recent fault (caused by impact damage) and subsequent repair to the BritNed HVDC Interconnector, 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. Another fault, still under investigation, has developed, believed to be further to the east, since the repair was completed. Consequently, the safety zone is being extended to include the suspected area of the new fault.

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.

See detailed map on our bulletin website

The Seismic survey vessel to be used by PGS is the PGS Ramform Hyperion, call sign C6DB4, registered in the Bahamas. It is due to be mobilised from Flora in Norway on the 11th April and start shooting Seismic on 17th April 2021. The survey is due to last 33 days.

PGS Ramform Hyperion will be accompanied by two other vessels. The Thor Omega (support vessel)  that will also mobilise from Flora and the Groen Miranda (escort vessel) , which will mobilise from Scheveningen, Netherlands.

Seismic survey operations will be by active surveying and the firing of airguns

As part of the completed works, the two separate HDD ducts have been cut back to a level just above the seabed and capped in preparation for upcoming export cable works. The height of the end of the ducting above the seabed (stick-up height). Each HDD exit location has been marked temporarily by a surface marker buoy. As-laid positions of the marker buoys are also provided.

The next scheduled works are due to begin the week commencing 15th March 2021, at the earliest. A notice to mariners will be issued in advance of these works, to notify of the start date.

There are a Smart Buoy and 2 yellow, Class 2 Guard Buoys carrying radar reflectors at the site.

All three buoys are fitted with a yellow light exhibiting the sequence FI Y (5) 20s.

The rig is likely to be on location for a total period of 130 days. 

The SWLB referred to as WS180 has been recovered from the location south-east of the met mast and the SWLB referred to as WS155 has now been deployed on site to the north-west of the met mast. Exact locations are provided. The deployment location is within the UK Sector of the North Sea off the coast of Blyth, Northumberland.

The equipment will be deployed close to the Blyth Met Mast as part of a validation study within the existing met mast 250 m consent zone and will be deployed for a minimum period of 3 months.

Scheduled maintenance is not planned due to the short deployment duration, but unforeseen maintenance may be required.

The equipment will be moored through a combination of steel chains, rope and rubber cord to approximately 2250 kg anchor weight at the seabed.

See detailed map on our bulletin website

The Jack up Barge, will depart from Leman 27BT (UKCS 49/27B) 25th February 2021 (dependent on weather) and transit to the Amethyst field, where it will  commence HCF/Topsides dismantlement operations on Amethyst C1D Platform (UKCS 47/14).

A temporary marker buoy has been positioned at the North of the end of the exposed duct shown in Fig 2 on the attached NtM (the highest point above sea level). The exposed duct protrudes approximately 20m from the seabed. The highest point is approximately 2.4m above seabed level or 6.5m below surface at LAT.

See detailed map on our bulletin website

See detailed map on our bulletin website

See detailed map on our bulletin website

See detailed map on our bulletin website

See detailed map on our bulletin website

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

The Wilson Adriatic will be performing cone penetration testing and vibrocore sampling and will be stationary on locations for up to approximately 4 hrs.

The cone penetration testing and vibrocore sampling is expected to commence at midnight on 5th March, 2021 and conclude at midnight on 31th June, 2021 using the vessel Wilson Adriatic. Works are planned to commence in the DBC wind farm array area.

Physical damage to pipeline, current cause unknown. Vessel on scene assessing.

The cable trenching (post lay burial) will be completed by tracked- on bottom trenching tools. WROV surveys will be conducted once the cable is buried.

Two trenching support vessels ,Grand Canyon 3 and the Boskalis Ndeavor, will be completing operations on the cable routes identified in Figure 2.

Both vessels will complete launch and recovery operations of the trenching tools, and will be restricted in their ability to manoeuvre during trenching and WROV operations.

The overall work scope will be carried out in 2 campaigns – Campaign 1, commencing 07/11/20 to 03/01/20 and Campaign 2, commencing 20/03/21 to 12/05/21.

See detailed map on our bulletin website

See detailed map on our bulletin website

See detailed map on our bulletin website

See detailed map on our bulletin website

See detailed map on our bulletin website

A recent ROV inspection at Galloper to assess the subsea structure of inter-array cable A1L identified a defect of the Cable  Protection System (CPS) on top of the existing scour protection around the wind turbine foundation, at the point of burial.

Asset Location  GS-A1L 51° 43,972' N 1° 58,174' E 

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. 

An updated NtM will be issued once the remedial works is confirmed and scheduled 

Mariners are requested to remain a distance of 50m2 away from GS-A1L, 51° 43,972' N 1° 58,174' E, until remedial works have been carried out.  

Temporary exclusion area as per the below drawing.   

Update February 5:

Successful retrieval of control sound recorder performed January 24. Failed retrieval of the sound recorder in wind park.  A second attempt for retrieval of the sound equipment in the Hywind Scotland Pilot Park is being planned. The notice is prolonged and the location of the retrieved control equipment is removed from the notice.

-----

As part of the Hywind Scotland Wind Park, Equinor has subcontracted Jasco Applied Sciences to perform sound recordings in the park area and in a control location in Buchan Deep (near cross over point between the FORTIES to CRUDEN Bay oil line and the GAS line).

The purpose of the sound measurement study is to document the operational noise from floating offshore wind turbines and their substructures, mooring lines and cables. It is part of an internal Equinor Research &Technology project that aims to increase knowledge on possible environmental implications of floating offshore wind, i.e. in this particular study, the possible impact ranges of sound from the wind park on marine mammals and fish. The results from the sound measurement study is important also for further technology development.

The Equinor contracted “MCS Swath1” (crew vessel) will be used for the deployment and retrieval of the sound recorder equipment (hydrophones). The field activity in connection with both deployment and retrieval will take one day, however, the recording period will be approximately 3 months from ultimo October 2020 to ultimo January 2021.

The recorders were deployed October 21. Yet, no exact date is set for the retrieval of the equipment (ultimo January 2021).Activity prolonged.

All Equinor installed equipment shall remain in position for the duration of the survey, but all equipment will be removed from seabed when the recording period is over. Also, there will be no bouys on sea surface or lines in the water column. All equipment will be placed on sea floor at approximately 100 meters depth by the help of an anchoring plate, which fastens the equipment and eliminates drifting of equipment. The equipment will have a height of maximum 1 meter above seabed, and the plate mooring system has the dimension 914 x 527 x 864 mm.

This equipment collects data and information of environmental importance and could get damaged or lost if trawled over.

When the equipment is retrieved, the acoustic release will be activated and the equipment will be lifted by crane.

Positions for recorders in wind park  (The Control was retrieved January 24 2021 and location is removed from the map in the active notice.)

Vessel Specification

Details of the vessel MCS Swath1 can be seen via the following document.

https://www.maritimecraft.co.uk/files/MCS-SWATH-1.pdf

According to information in the specification, a deck crane of load 500 kgs is installed. The crane and a mobile winch will be used to deploy and retrieve sound recording equipment.

The jack-up rig Maersk Highlander is alongside Elgin WHP B  – within 500m zone for the next 6 moths (approximately)

See detailed map on our bulletin website

See detailed map on our bulletin website

See detailed map on our bulletin website

Whilst the boundaries of the aquaculture site are lit, marked and charted, equipment deployed within these boundaries may be unlit and lying close to the surface.  Mariners are advised to exercise caution in the vicinity and to remain a safe distance outside the site boundaries. 

See detailed map on our bulletin website

See detailed map on our bulletin website

See detailed map on our bulletin website

See detailed map on our bulletin website

See detailed map on our bulletin website

See detailed map on our bulletin website

See detailed map on our bulletin website

The cone and friction rod were also missing at recovery and are most likely curried under the seabed. These are also made of steel with the same diameter. The cone is 35cm long and the friction rod is 30cm long. 

There may be a minor risk to trawler’s fishing gear if they trawl over this location, however, it is more likely that any trawling gear would break the rod below the seabed.

See detailed map on our bulletin website

Mariners are advised that the remnants of a Wave Rider Buoy sinker weight and partial rigging remain in position at:

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.

***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.

Details of Seabed - West Cluster

Note: 210m of 177mm dia. chain has been laid on seabed at each location towards the FPSO centre.

Details of Seabed - North East Cluster

Note: 210m of 177mm dia. chain has been laid on seabed at each location towards the FPSO centre.

Details of Seabed - Southern Cluster

Note: 30m pile is installed in this fast frame

See detailed map on our bulletin website

See detailed map on our bulletin website

West cardinal buoy (Fl. Q. (9). 15s), including ground tackle, with 400m excursion radius. Buoy fitted with AIS.

East cardinal buoy (Fl. Q. (3). 10s), including ground tackle, with 400m excursion radius. Buoy fitted with AIS.

Hornsea Project Two confirms the presence of 7 Unexploded Ordnance (cUXO) and 2 suspected UXO (sUXO) which remain undetonated within the Hornsea Project Two Wind Farm area. There are no plans to clear these remaining UXO.

All vessels are requested to maintain the required safe distances as defined from the coordinates

It should be noted that ongoing seabed preparation for construction, as well as construction activities themselves, may identify further UXO which may need to be cleared from the site. Separate notices will be issued in this case.

The as-built survey of the Mariner 6" Gas Import pipeline showed two items of debris that were later identified as WW2 unexploded ordnance.

The UXOs posses no immediate threat to the burried pipeline. 

Plans are being reviewed to arrange for safe removal and destruction/disposal.

Dimensions of object: ~33 m of steel drill string consisting of: 4 X Drill Collars (each ~4.5 m long, ~8 inch diameter and ~500 kg in weight) 1 X API Drill String ~9 m long, 4.5 inch diameter and ~300kg weight

The topsides has been removed from the Ninian North installation, leaving the jacket structure still in place. The top of the structure is approximately 6 metres above sea level. With the removal of the topsides, the remaining jacket structure is unlit and is not fitted with any navaids; cardinal buoys are located to the East & West.

See detailed map on our bulletin website

Please be advised that the installation of the Tampnet fibre optic cable is still ongoing and that there is currently approximately 4.5km of EXPOSED CABLE on the seabed as per attached drawing. We advise all seafarers and fishermen to keep clear of using any bottom equipment that might interact and damage the cable in vincinity of the route. We are also broadcasting and raising awareness from land and nearby guard vessels to all fishermen approaching the cable route. The installation is expected to be ongoing until mid September. 

ROn behalf of Beatrice Offshore Windfarm Ltd, MV Olympic Artemis Call sign: LAFV8 will deploy rock bags over a four-metre section of exposed export cable.

Work Commencement date TBC.

During this operation the MV Olympic Artemis will be restricted in its ability to manoeuvre and will be displaying the appropriate lights and day signals. All vessels are there for requested to give a wide berth when passing.

At present the MFV Reaper is acting as a guard vessel at this location, further information is available in previously issued Beatrice notice to mariners NTM-BE-00005 - Export Cable Guard Vessel. MFV Reaper will remain on location throughout operations until the partial exposure has been proven to be satisfactorily covered.

These UXO items either do not contain a fuse or are confirmed as solid shots and clearance by detonation is not likely to be possible. As such, relocation of the item is necessary. The item will be relocated to a position outwith the construction areas, but within the boundaries of the NnG licensed area, as permitted by the Marine Licence.

During overboarding of the 6th mattress for the Shell 34” pipeline, the crane wire parted when the matt was entering the splash zone at approx. 25m above seabed. The Fleximat dimensions are 6.4m x 3.0m x 0.5m Weight in Air 15860kg.

The mat was being overboarded 15m away from the 34” pipeline, the mattress and frame landed on the seabed 6m away from the 34” pipeline

• Fleximat 6.4x3.0x0.5m 2.4 & 3.2te/m3 Concrete Mattress – Weight in Air 15860kg
• Mattress Lift frame – 6.3x2.4m – Weight in Air 1.7te
• Approx. 25m Crane wire
• 0.5t Crane Block

25m Crane wire and 0.5te Crane Block safely recovered 13:50, 08/09/20.

Plan is to recover mattress but inspections into the current state of the mattress are required to determine a suitable recovery methodology.

A marine licence (ML/634) application has been submitted and approved by BEIS,  A variation to extend the marine licence to 14th November 2020 was approved by BEIS on 2nd November, and a second variation for extension to 31st January 2021 is now pending with BEIS.  This is due to scheduling delays due to poor weather.  The mattress frame and mattress will now be recovered by the Seven Falcon offshore support vessel.

Notice to fisheries and seabed users in the Irish Sea:

Please be advised that following a recent cable repair to the GTT (Hibernia) Segment ‘C’ between Southport and Dublin, the cable has been deployed as follows:

Initial Splice:        53° 48.3613’N    04° 30.1514’W

Standing bight:   53° 48.2208’N    04° 29.4494’W

Final Splice:         53° 48.1279’N    04° 28.2360’W

It should be noted that throughout the extent of the cable repair, despite repeated attempts at post lay burial by an ROV, the predominantly very rocky seabed has meant that cable burial and hence protection has not been possible.

It should also be noted that at the position of the ‘standing bight’ the cable is standing upright from the seabed at a height of 0.4 metres, with a length over the ground of 2.0 metres.

All seabed users are requested not to deploy equipment which engages with the seabed in this area, to avoid snagging of the cable and particularly so, at the standing bight area.

In case of any issues, please do not hesitate to contact the GTT Hibernia emergency contact number on: +353 1 867 3600 Option 2

Detailed below, to avoid hazardous interaction with these sections of exposed pipeline, pending the execution of mitigation works.

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.

See detailed map on our bulletin website

See detailed map on our bulletin website

See detailed map on our bulletin website

Please be advised that Moray Offshore Windfarm (East) shall commence WTG installation on the previously installed jackets (Figure 2). WTG’s will be installed by the JUV Bold 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 Windcat 40). Installation and commissioning works will commence circa 05th January 2021 until completion

The survey will involve a survey boat deploying a vibrocorer to retrieve seabed samples in and around Area 481.  

The devices have been placed within the Order Limits of the Hornsea Project Two offshore wind farm.

Note that these devices will remain on location throughout construction of the Hornsea Project Two Offshore Wind Farm and mariners should take note of their presence.

Specifically prohibited are: anchoring in the vicinity of the wreck, fishing by nets, trawls or lines in the vicinity of the wreck, and any diving operations on the wreck or its outlying gear. For the purposes of this direction, the vicinity of the wreck shall be taken to be a circle, radius 200 metres, centred on the wreck’s location.

The equipment was deployed by the vessel Afon Wen on 28 November 2020. Grappling operations were also conducted on site and the majority of an old mooring remaining on the site were recovered from the location; the only remaining items on the seabed are an anchor weight, a short length of chain and approximately 10 m of dyneema rope. No further scheduled maintenance is planned on this project, although unforeseen maintenance may be required.

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 is deployed within the East Anglia TWO wind farm array limits and will be deployed for approximately twelve months from July 2020.

See detailed map on our bulletin website

See detailed map on our bulletin website

See detailed map on our bulletin website

See detailed map on our bulletin website

See detailed map on our bulletin website

See detailed map on our bulletin website

See detailed map on our bulletin website

See detailed map on our bulletin website

The moorings have been deployed as part of a European Maritime and Fisheries Fund project on behalf of Marine Scotland Science, and carry research equipment that records underwater noise and the echolocation clicks of marine mammals.

All moorings are sub-surface and extend no more than 6 metres vertically from the seabed. There is more than 50 metres clearance to the surface above every mooring.

Further surveys are planned in 2021

These boulders have seemingly been deployed in groups at different times, with notification via the UKHO.

The Borr Prospector 5 Heavy Duty Jack Up Rig will be positioned at the Glengorm South appraisal well location 22/26d-C.The rig will remain on location for approximately 216 days before departing to the second appraisal well location on Glengorm, well 22/21c-C.

See detailed map on our bulletin website

See detailed map on our bulletin website

Oceanographic sensors will be deployed for a period of 12 months at 4 locations at the mouth and to the north of the Dee Estuary. The sensors will be deployed in early November 2020 using the Port of Mostyn workboat, Eileen. Each location will be marked by a yellow surface buoy with a yellow 'X' topmark and will be lit with characteristics Fl.Y.(5)20s.

A 50m exclusion is requested from the marker buoy. Each location will be visited at 3 month intervals for mooring maintenence, using the Port of Mostyn workboat, Eileen.

There is likely <0.5m presence of the anchor at the seabed so no risk to navigation is perceived.

There is a small potential for entanglement with fishing gear should trawling be undertaken in the area should equipment remain on seabed surface. No navigational risks are perceived.

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.

See detailed map on our bulletin website

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:

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

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.

See detailed map on our bulletin website

Details of any radio Navigational Warnings and/or Notices to Mariner’s:

• None as yet, but geotechnical spread remains at site and in a position to guard and notify as required.

See detailed map on our bulletin website

The replacement FLS was deployed on the boundary of the Seagreen Alpha and Seagreen Bravo offshore wind farms in the Firth of Forth Offshore Wind Round 3 Zone off the east coast of Scotland. The replacement FLS is approximately 600m to the south-west of the previous location.

The FLS buoy will remain deployed for up to 1 additional year from this date. Service visits will occur at approximately 3-month intervals over this period.

The FLS is buoy mounted and is moored using 150 m long DIN 5683-II mooring chain Ø26 x 234 mm and 3 tonne concrete anchor. The buoy is powered by solar panels and micro wind turbine generators. The buoy is yellow (RAL 1023) in colour and will be clearly marked with two navigation lights (flashing amber, 5 flashes every 20 seconds, nominal range 3-6 nm visibility). The buoy is fitted with a Radar reflector. A service vessel will be on station for approximately four hours during service and recovery visits. Other vessels should maintain a safe distance when passing the vessel and should pass at lowest possible speed to avoid vessel wash effects.

The wet storage area will, when complete, consist of eight by one tonne gabions with two sections of redundant caisson resting on them. The two caisson sections are 20 metres and 18.5 meters in length weighing 18.4 tonnes and 10.3 tonnes respectively. Six by one tonne gabions were placed on the seabed with the 20 meter section of caisson resting atop of them on the 12th of June 2020. The date when the second 18.5 meter section of caisson will be position in the wet storage area has not yet been determined. 

See detailed map on our bulletin website

Due to the nature of the seabed in this area the cable may be exposed and could be a hazard to fishing. Fishermen are asked to ensure that they have the route of the Apollo South cable accurately plotted on their fishing charts. Trawler skippers are respectfully asked to exercise caution when trawling in the vicinity of the Apollo South cable and to keep beyond a distance of at least 500 metres from the charted cable route and, where at all possible, to avoid trawling directly over the cable route. Static gear fishermen are advised not to deploy anchors and end weights in close proximity to the cable.

Dimensions of object:

• Various lengths of anchor chain (max 1.3mtr)
• Held together by steel sling and shackles
• Total mass ±500kg
• Connected is a white polyprop line - ± 25-30mtr in length with sinker at end.

A fishing vessel had to release a large clump of concrete back to the sea bed after having become snagged. The concrete clump could pose further risk to fishermen. The lump had broken into two parts.

The marker buoys will remain in place until the construction of Neart na Gaoithe Offshore Wind Farm is complete.

The buoys will be deployed for the duration of the construction of Neart na Gaoithe Offshore Wind Farm. The buoys will be inspected and maintained at least every 12 months.

There are currently two Guard Vessels present on site, which will be on site for the duration of the Neart na Gaoithe Offshore Wind Farm construction period. The guard vessel is either:

• Artemis, call sign MVIX5;
• Tranquillity S, call sign MJUH9 or
• Seagull, call sign MVBO2.

Significant free-spans have been identified along the PL1043 Dunbar to Alwyn pipeline : Please exercise caution in these areas

No overtrawlability trial done yet, rough ground may be experienced.

After the decommissioning of the MacCulloch FPSO / Field in UKCS Block 15/24, a Guard Vessel is no longer in position. 

The Donan (Dumbarton) Field, located in UKCS Block 15/20, has an out of use Gas Export pipeline (PL2324) which is still connected to a Tie-In Skid located within the previous MacCulloch subsea 500m zone. 

Please be aware that this subsea Tie-In Skid remains in place at this location.  The structure has been notified and recorded on the NDR / FishSafe websites since 2006/07, but has been previously monitored by the guard vessel.

No overtrawlability trial done yet, rough ground may be experienced.

No overtrawlability trial done yet, rough ground may be experienced.

See detailed map on our bulletin website

The PL3088 Cygnus Export Pipeline Span located ~21km South West of Neptune’s Cygnus Alpha Complex, as reported during the 2019 pipeline inspection campaign. The 29m span length and 0.26m span depth shown below could present a Hazard to Fishing.

In the interests of maritime safety, mariners/fishermen are advised not to anchor, trawl or deploy bottom contact fishing equipment in the vicinity of the EirGrid East West Interconnector power cable route and within the boundary box of the exposed cable sections as detailed.

A scallop dredger became snagged on an exposed section of the fibre optic cable in June 2019 causing serious damage to the fibre optic cable and subsequently had to abandon retrieval of his gear for safety reasons.  This notification is made to the fishermen, operating between Redcar and the Breagh A platform, to be advised that the fibre optic cable represents a serious snag risk to both scallop dredgers and static gear fishing in the vicinity of the line.

Fishermen are advised to stay away from the line to avoid the risk of becoming snagged on the unburied sections of cable.

Whilst the results continue to be processed, Balfour Beatty have asked that in the interest of safety and the integrity of the cable, extreme caution be used when Fishing near the export cables and that Fishermen refrain from using towed gear across the export cables wherever possible.

These are the following cables located in the eastern part of Gunfleet Sands 1 and the north eastern part of Gunfleet Sands 2.

There is a freespan at the following array Cable Position:

See detailed map on our bulletin website

See detailed map on our bulletin website