Pilbara notices

Mariners are advised that ploughing and survey operations are scheduled to commence at the Onslow Marine Support Base (OMSB) Beadon Creek, Port of Onslow around 30 September 2023 and are expected to be completed around 5 October 2023. Works will take place from 6am-6pm, Monday to Sunday.

Vessels involved:
• Ploughing vessel: TAMS ‘Anne Marie’ (21.6m x 9.04m multicat) – equipped with plough
• Survey vessel: TAMS ‘AMS14’

Area of Operations:
Ploughing activities will occur along the complete length of the Beadon Creek channel:
• The majority of the ploughing activities will be within the inner harbour of OMSB and along the 202 route
• The plough will also be required to work in the channel to remove any remaining points of interest

All vessels taking part in these works will exhibit shapes and lights in accordance with the Prevention of Collisions at Sea Regulations 1983 at all times.

Operators will utilise VHF channel 16 during operating hours.

Mariners are advised to use caution when transiting the area and keep well clear of the above operations.

Mariners are advised that crane barge and related marine operations for removal of the Thevenard Island Jetty are scheduled to take place from 07th August 2023 to 30th September 2023.

Four (4) temporary moorings are planned to be installed in the vicinity to accommodate the marine spread.
Vessels and mooring locations are summarised below:

TAMS 129 (Crane Barge: 37 x 12m)
o 4-point mooring at TVI Jetty (see figure 1 for details)
o Swing mooring at 21° 28.097’S; 115° 01.434’E

TAMS ANNEMARIE (Multicat: 22 x 9m)
o Berthed at TVI Jetty head (South) or alongside Eastern fenders.
o Swing mooring at 21° 28.061’S; 115° 01.671’E

WEERDEE ISLAND (Cargo Barge: 37 x 12m)
o Berthed alongside TAMS129 at TVI Jetty
o Swing mooring at 21° 28.195’S; 115° 01.304’E

SEAHORSE QUENDA (Tug: 23.5 x 9m)
o Swing mooring at 21° 28.097’S; 115° 01.434’E

TAMS PASSAGE (CTV/ERV: 10m)
o Alongside one of the project barges during the day
o Swing mooring at 21° 27.866’S; 115° 01.343’E overnight

TVI Jetty removal mooring installation date: Mon, 05th Aug 2023
(Note: TAMS ANNEMARIE swing mooring remains installed from previous diving campaign.)

Latest planned mooring recovery date (TBC): 10th Oct 2023

The above jetty removal activities will be supported with several additional vessels transiting to and from Beadon Creek over the course of project works:

- Crew and light cargo transfer “OCEAN SPIRIT” (LOA: 17.4m).
- Utility work platform “TAMS INTERTIDAL” (LOA: 11.9m).
- Tender and crew transfer “BOBSLED” (LOA: 4.9m)
Operators will monitor Marine VHF channels 14 and 16 during operating hours.

“TAMS129” Crane barge will remain on station alongside the jetty during the majority of the scheduled work period and load redundant jetty components onto “WEERDEE ISLAND” barge which will berth alongside “TAMS129” between successive movements to and from Beadon Creek where she will discharge at the OMSB facility at Lot 13. Towage will be effected predominantly by “SEAHORSE QUENDA”, supported by “TAMS ANNEMARIE” as required.

All vessels taking part in these works display shapes and lights in accordance with the Prevention of Collisions at Sea Regulations 1983 at all times.

The moorings are marked with surface buoys and yellow flashing lights with sequence 0.5s on, 2.5s off and approximate locations of moorings outside the licenced mooring area are shown on the two figures below.

Mariners are advised to navigate with caution when transiting the area and keep clear of the above vessel operations at all times.

Mariners are advised that 13 seabed environmental monitoring instruments will be deployed in the Dampier Archipelago around Friday 5 May 2023 at the following locations:
1. Conzinc Island - 20° 32.173’ S, 116° 46.668’ E.
2. Conzinc Island - 20° 32.456' S, 116° 46.399' E.
3. COBN - 20° 32.417' S, 116° 48.193' E.
4. Angel Island - 20° 30.710' S, 116° 47.127' E.
5. Hauy Island - 20° 26.747' S, 116° 58.233' E.
6. Flying Foam Passage - 20° 29.504' S, 116° 49.060' E.
7. Gidley Island - 20° 28.261' S, 116° 47.794' E.
8. Hamersley Shoal - 20° 22.713' S, 116° 47.519' E.
9. High Point - 20° 32.398' S, 116° 41.059' E.
10. Courtenay Shoal - 20° 28.155' S, 116° 42.273' E.
11. Lady Nora Island - 20° 26.765' S, 116° 37.527' E.
12. Legendre Island - 20° 21.202' S, 116° 50.450' E.
13. Malus Islands - 20° 31.543' S, 116° 39.603' E.

Each of the above instruments consists of a yellow surface buoy (approximately 750mm wide x 920mm height and equipped with solar panels and a flashing yellow light) attached to a seabed frame (1100mm x 1100mm x 1000mm).

Flash rate: Fl Y 4s

Provisional recovery date: September 2023

No vessel is to moor to or interfere with the above instruments and surface buoys at any time.

Mariners are advised to exercise caution when transiting the area and keep well clear of the above environmental monitoring equipment.

Mariners are advised that there is reduced depth due to stockpiling of dredge spoil in Beadon Creek Onslow, Western Australia. The stockpile will remain until further notice.

The stockpile extends from approx. 35m North of the Northern end of the Onslow Marine Support Base berth face and 100m to the south along the berth face. Eastern extents encroach approx. 35m into the channel.

Two temporary lit yellow special markers flashing Y1.5s mark the NE and SE extents of the pile.

NE Lat 21°38.665'S, Long 115°07.864'E

SE Lat 21°38.715'S, Long 115°07.871'E


Navigable depth is reduced west of the special markers.


Mariners are advised to use caution when transiting the area.

Mariners are advised that 4 subsurface monitoring stations have been deployed on 7 July 2022 in the Fortescue River, Cape Preston vicinity, at the following locations:

• 21.001°S, 116.101°E
• 21.008°S, 116.097°E
• 21.009°S, 116.097°E
• 21.012°S, 116.098°E

Each of the above monitoring stations consists of instrument sensors mounted on a frame on the riverbed with ground line and subsurface float protruding approximately 0.5m from the riverbed.

Recovery date: 31/12/2023

Mariners are advised to exercise caution when transiting the area and keep well clear of the above monitoring stations.

Vessel masters are reminded that all vessels wishing to transit or operate within the port limit which either:

Have a LOA of 35 meters or greater; or
Are engaged in towing operations where the total length of the tow (measured from the bow of the towing vessel to the stern of the towed vessel) is 35 metres or greater.

Are required to engage the services of a suitably licensed marine pilot or the vessel Master must be the holder of a current Port of Barrow Island Pilot Exemption Certificate.

Vessels, vessel Masters or operators of vessels affected by this requirement are invited to approach the Department of Transport Harbour Masters office at port.ops@transport.wa.gov.au to apply for a Pilot Exemption Certificate to be issued.

Authorised by: Captain Steven Wenban, Harbour Master, Port of Barrow Island, Marine Safety Department of Transport.

Vessel masters are reminded that all vessels wishing to transit or operate within the port limit which either:

Have a LOA of 35 meters or greater; or
Are engaged in towing operations where the total length of the tow (measured from the bow of the towing vessel to the stern of the towed vessel) is 35 metres or greater.

Are required to engage the services of a suitably licensed marine pilot or the vessel Master must be the holder of a current Port of Onslow Pilot Exemption Certificate.

Vessels, vessel Masters or operators of vessels affected by this requirement are invited to approach the Department of Transport Harbour Masters office at port.ops@transport.wa.gov.au to apply for a Pilot Exemption Certificate to be issued.

Authorised by: Captain Steven Wenban, Harbour Master, Port of Onslow, Marine Safety Department of Transport.

Vessel masters are reminded that all vessels wishing to transit or operate within the port limit which either:

Have a LOA of 35 meters or greater; or
Are engaged in towing operations where the total length of the tow (measured from the bow of the towing vessel to the stern of the towed vessel) is 35 metres or greater.
Are required to engage the services of a suitably licensed marine pilot or the vessel Master must be the holder of a current Port Walcott Pilot Exemption Certificate.

Vessels, vessel Masters or operators of vessels affected by this requirement are invited to approach the Department of Transport Harbour Masters office at port.ops@transport.wa.gov.au to apply for a Pilot Exemption Certificate to be issued.

Authorised by: Captain Steven Wenban, Harbour Master, Port Walcott, Marine Safety Department of Transport.

Mariners are advised that 9 sawfish acoustic receivers are scheduled to be installed around 20/01/22 inshore at Mary Anne Passage, north of Onslow, at the following locations:

Locations:
Location Coordinates
1 Mardie N Offshore 21.067°S, 115.923°E
2 Mardie N Inshore 21.083°S, 115.925°E
3 Second Creek 21.135°S, 115.883°E
4 First Creek 21.117°S, 115.890°E
5 Third Creek 21.152°S, 115.869°E
6 Fourth Creek 21.175°S, 115.858°E
7 Offshore Fourth Creek 21.173°S, 115.838°E
8 Mardie S inshore 21.252°S, 115.818°E
9 Mardie S Offshore 21.232°S, 115.805°E
Each of the above receivers are attached to a weight and lifting line on the seabed protruding approximately 30cm from the seabed, and are marked by an unlit yellow surface buoy, approx. 70cm in diameter.

Recovery date: 30/11/2023

No vessel is to moor to or interfere with the above receivers and surface buoys at any time.

Chart reference: Chart AUS743 – Barrow Island to Onslow

Mariners are advised to exercise caution when transiting the area and keep well clear of the above receivers.