Mid West notices

View navigational warnings, event notices and Temporary Notices To Mariners for the Mid West region.

 Advice:  Dredging Works - Jurien Bay Boat Harbour

Mariners are advised that maintenance dredging works at Jurien Bay Boat Harbour will commence mid-January 2023 and will proceed until approximately late-May 2023.

Dredging will mainly occur Monday to Saturday between the hours of 0700 and 1800hrs, with provision to take place on Sundays and overnight, if required.

The works are being carried out by the 18m cutter suction dredge “Mudlark I”, equipped with 1.2km of floating & submerged pipeline marked with yellow buoys, displaying rhythmic flashing lights. The dredge has no self-propulsion and uses anchors and spuds to move. Dredged material will be disposed offshore and the pipeline will terminate at a yellow pontoon, marked with yellow flashing light. Mariners are recommended to keep clear of the disposal point.

The dredge and connected pipeline will remain unmanned in the area of operation after normal operating hours for the duration of the works.

The dredge will exhibit shapes and lights in accordance with the Prevention of collisions at Sea Regulations 1983.

If mariners are unsure of where to safely pass the dredge vessel, they are requested to contact the operators who will be monitoring the following radio frequencies:

VHF Channel 16 & 74


Mariners are advised to use caution when transiting the area and keep well clear of the above operations.
Chart reference: WA947 - Jurien
Location: -30: 17.306'S  115: 2.634'E
Start date: 1/12/2023 12:00:00 AM
End date: 5/31/2023 12:00:00 AM
Issued: 1/12/2023 12:00:00 AM
Notice number: 5526

 Advice:  Jurien Bay seabed light logger array

Mariners are advised that light loggers will be temporarily deployed around 21 December 2022 in the Jurien Bay vicinity at the following five locations:

30: 16.574S, 115: 2.084E
30: 16.656S, 115: 2.095E
30: 18.089S, 115: 1.189E
30: 18.151S, 115: 0.653E
30: 17.054S, 115: 2.243E

Each light logger will be mounted on a seabed frame which protrudes approximately 1m from the seabed and will be marked with a yellow surface buoy, approximately 600 mm in diameter, equipped with flashing yellow lights (Flash rate: Fl Y 3s).

Mariners are advised to navigate with caution when transiting the area.

Recovery date: April 2023
Chart reference: WA947 - Jurien
Start date: 12/21/2022 12:00:00 AM
End date: 4/9/2023 12:00:00 AM
Issued: 12/20/2022 12:00:00 AM
Notice number: 5498

 Warning:  Weed hazard Jurien Bay Boat Harbour

Mariners are advised to use caution as there has been significant seaweed inundation occurring at the Jurien Bay Boat Harbour.

This weed build up may inhibit the safe navigation of vessels within and entering the harbour. Please use caution when transiting this boating facility, the weed build up is reported to be extreme in some parts of the harbour.
Chart reference: WA947 - Jurien
Location: -30: 17.28412'S  115: 2.5401'E
Start date: 8/5/2022 12:00:00 AM
Issued: 8/5/2022 12:00:00 AM
Page last updated: Tue Feb 15 2022 10:54:25 AM