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MARINERS ARE HEREBY ADVISED that, a temporary buoy carrying scientific equipment will be redeployed in Dale Roads META area from 21st February 2023.

1. MARINERS ARE HEREBY ADVISED that, a temporary buoy carrying scientific equipment will be redeployed in Dale Roads META area from 21st February 2023.

 

2. The buoy is a modified version of a Hippomarine “25T Through Chain Mooring Buoy” with additional ballast and top platform. Dimensions are 4m diameter, 4.5 m height (plus equipment on top of the platform), and a dry mass of 8.13 tonnes including the 7m initial mooring riser and load shackles.

 

3. The buoy will be secured at station using a 3-point mooring spread with a single riser. Water depth at the location is approximately 10m Chart Datum with a tidal range of around 8m.

 

4. Two anchors are deployed facing into the predominant wave direction with an angle of 80° between anchors. The third anchor is sited opposing the seawards facing anchors towards the shore.

 

5. In addition to the Marine Energy Engineering Centre of Excellence (MEECE) Test Buoy a DWR-G 90 cm Datawell Waverider Buoy with GPS sensor and HF-radio link will also be installed approximately 100 m into the seawards facing direction.

 

6. Approximate positions of the Buoy and anchors as per Table 1:

 

Table 1 - WGS 84 Deployment co-ordinates

MEECE Buoy

51° 42.679'N   005° 7.419'W

Anchor 1

51° 42.656'N   005° 7.480'W (heading from MEECE Buoy: 239°)

Anchor 2

51° 42.638'N   005° 7.390'W (heading from MEECE Buoy: 157°)

Anchor 3

51° 42.720'N   005° 7.386'W (heading from MEECE Buoy: 027°)

Waverider Buoy

51° 42.640'N   005° 7.450'W (heading from MEECE Buoy: 206°)

 

7. The buoy will remain in position until end of June 2023. A further NtM will be issued when the buoy has been removed.

 

8. Mariners are advised to navigate with caution in this area.

 

9. Admiralty charts 3273, 3274 and Imray Y26 & 2600 ATLAS refer.

 

BY ORDER

MIKE RYAN

HARBOURMASTER

BY ORDER
M RYAN
HARBOURMASTER

Port of Milford Haven
Gorsewood Drive
Hakin
Milford Haven
Pembrokeshire
SA73 3EP

Tel: 01646 696100
Email: enquiries@mhpa.co.uk