South West notices

Mariners are advised that works to deploy the Busselton Jetty underwater artificial reef structures are underway and are expected to be completed by Friday June 30, 2023. The works will include under deck works at the Busselton Jetty and deployment of underwater sculptures within the jetty footprint in tandem with diving operations.
The works will be conducted Monday to Friday (excluding public holidays) during daylight hours using jack up barge SMC3 (16.2m x 9.3m), workboats and land-based equipment as required. Reef sculpture components will be transported from a temporary laydown area at the Port Geographe Marina to the works area

The end of the jetty will be closed for use during these works
The works area will be delineated by yellow buoys, approximately one metre in height and equipped with flashing yellow lights.
The International Code Flag ‘A’ will be exhibited whilst diving operations are underway.
All vessels taking part in these works will display shapes and lights in accordance with the Prevention of Collisions at Sea Regulations 1983 at all times. Operators will monitor Marine VHF Channel16 during operating hours.
For further information regarding these works please contact works supervisor Jeff Offer on 0423 117 023
Mariners are advised to exercise caution when transiting inside the Port Geographe Marina, along the Busselton Jetty and on route between those locations during the above operations.

Mariners are advised that the Australind Jetty Refurbishment works are scheduled to commence on 13 February 2023.

The works area will have silt curtains deployed in the water to indicate the work zones. This silt curtain will be marked by lit yellow special marker buoys.

Please navigate with caution and keep clear of the work zone areas during the refurbishment.

Mariners are advised that three wave buoys are scheduled to be deployed in Geographe Bay as follows:

Locations:

-33.5915S, 115.1165E (Dunsborough)
-33.6001S, 115.2499E (Abbey)
-33.628S, 115.338E (Busselton Jetty)


Deployment date: 08/09/2022
Provisional recovery date: 08/09/2023

The above wave buoys are yellow in colour, approximately 420mm in diameter, and equipped with a flashing yellow light.

Flash rate: Fl Y 2.5s

No vessel is to moor to, or interfere with, the above wave buoys at any time.

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

Mariners are advised that a port lateral marker at Hardy Inlet is missing. Navigate with caution when passing directly east of Thomas Island.

Port Geographe harbour entrance channel
Mariners are advised that mobile seagrass wrack may be present in the vicinity of the Port Geographe Harbour entrance channel.

This material can vary significantly in thickness and position over short time frames, reducing depths and restricting navigation in the channel.

The affected area includes the full extent of the entrance channel, with the worst affected area being in the entrance channel directly adjacent to the lagoon rock-wall.

Mariners are advised to navigate with caution in the entrance channel, allowing for changing conditions when traversing the area. Vessels may be at risk of grounding when navigating through this area.

Mariners are advised that the Marlston Waterfront Jetty (adjacent to the Dome Café, Bonnefoi Boulevard Bunbury) has been closed until further notice due to storm damage.

A boom and yellow marker buoys have been deployed around the jetty.

Mariners are advised to remain east of the yellow marker buoys and exercise caution when towing skiers in the adjacent Koombana Bay water ski area.

Mariners are advised that shallowing has occurred at the northern entrance to the Pelican Point Canals (immediately downstream of the mouth of the Collie River, Bunbury) reducing depths and restricting navigation in the vicinity.

The shallowest area of the canals, outside the edges of the canals, is reported to be on the southern side of the approach channel, about 20m upstream of the pedestrian bridge into the northern canal entrance