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Notice to Mariners No 22 of 2017

18 October 2017

Mariners are advised that a site investigation will be conducted at two shore crossing locations either side of Backstairs Passage in the vicinity of Kangaroo Island (Cuttlefish Bay) and Cape Jervis (Fishery Beach). These works are scheduled to commence around 15 October 2017 and are expected to take approximately 2 weeks to complete.

The investigation will be carried out from the “AMS 1” Dive Support Vessel, equipped with an air diving spread and multi-beam survey equipment. Operations will take place during daylight hours only and the “AMS 1” will be secured within Christmas Cove (Kangaroo Island) between shifts.

“AMS 1” will be stationed at each diving location utilising a fore and aft anchor mooring spread which will remain in situ overnight at each subsequent diving location. Moorings left overnight will be close to shore and marked by small yellow buoys.

Bathymetric (multi-beam) survey operations will be conducted periodically during the course of the works at each nearshore approach, extending to approximately 500m offshore.

Diving operations will take place as required. The international code flag “A” will be exhibited whilst diving operations are in progress. Diver and vessel excursions will be communicated with Flinders Ports VTS on a daily basis.

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 monitor VHF Channels 14 and 16 during operating hours.

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

Chart reference: AUS Chart 126

Adelaide, 12 October 2017

Manager Marine Operations

DPTI 2017/02277/01