Notice to Mariners No 50 of 2025 (Temporary)
Monday 4 August 2025

HARBORS AND NAVIGATION ACT 1993
Notice to Mariners No. 50 of 2025 (Temporary)
SOUTH AUSTRALIA – SPENCER GULF – PORT BROUGHTON – MISSING AND DAMAGED TOPMARKS ON NAVIGATION BEACONS
Mariners are advised that the following topmarks on the navigation beacons marking the channel into Port Broughton are either missing or damaged:
Beacon No | Type | Latitude | Longitude |
12 | Port | 33° 34’ 03.92” S | 137° 53’ 34.87” E |
15 | Starboard | 33° 34’ 13.15” S | 137° 53’ 49.70” E |
47 | Starboard | 33° 34’ 53.59” S | 137° 55’ 35.56” E |
49 | Starboard | 33° 34’ 59.56” S | 137° 55’ 34.23” E |
51 | Starboard | 33° 35’ 07.84” S | 137° 55’ 30.82” E |
53 | Starboard | 33° 35’ 14.46” S | 137° 55’ 28.09” E |
The topmarks will be replaced in the near future.
Mariners are advised to navigate with caution in the area.
Charts affected: AUS485, AUS778, AUS4060, AUS4709
ENC PACK AUST1, CST09, PT514, PT516, VOY03, VOY04
GORDON PANTON
Manager Marine Safety and Compliance
Department for Infrastructure and Transport
4 August 2025
2017/02277/01