Skip to Main Content
Auckland Transport

Local notices to mariners Local notices to mariners

Notices to mariners cover events, local issues and infrastructure issues that may affect navigation in the Auckland region.

Local navigation warnings

For any enquiries please contact: harbourmaster@at.govt.nz


Notice: 10-19 Old Mangere Bridge Closure

All mariners are advised that the NZ Transport Agency have closed the Old Mangere Bridge. The agency have confirmed that Spans 8 & 9 are open, all mariners are advised to transit through the navigable spans with extreme caution.

Read the clearance details (PDF 447KB)

Gareth Williams
Maritime Officer


Notice: 03-19 Construction work near Viaduct Harbour

Extensive construction work is being undertaken in the vicinity of the Viaduct Harbour in preparation for the Americas Cup.

A piling barge will be positioned along the outside of Hobson or Halsey Wharves and will be partially obstructing the entrance channel from time to time. The piling barge will have ground tackle extending up to 160m offshore. The tackle will be buoyed and mariners should avoid navigating between the buoys and the barge. Any vessels that require to enter or leave the Viaduct must make positive contact with "Viaduct Control" on VHF Channel 73 and comply with their instructions.

Mariners should proceed with extreme caution and should give construction vessels a wide berth. All mariners are advised that during the construction period all but essential navigation within the Viaduct Harbour and approaches should be avoided.

This notice expires: 1 October 2019.

Area map of construction work near Viaduct Harbour

Andrew Hayton
Harbourmaster


Notice: 28-18 Hobson Bay/Okahu Bay wave screen

All mariners are advised to navigate with caution in the vicinity of the Hobson Bay/Okahu Bay derelict wave screen. Mariners are reminded that they should only navigate through the recognised entry/exit (as per chart NZ 5322).

Notice 28-18 Hobson Bay Okahu Bay wave screen
Map not to be used for navigation.

Christiaan Moss
Deputy Harbourmaster


Notice: 15-18 Manukau Harbour

All mariners please be advised that as of the 30 March 2018 the South Head signal station at the entrance to the Manukau Harbour will no longer be maintaining a watch and Ports of Auckland will no longer routinely survey the Manukau Bar.

All mariners should proceed with caution while navigating in this area.

Local Notice to Mariners 15 -18 South Head signal station
Map not to be used for navigation.

Wesley Klopper
Maritime Officer


Notice: 04-18 Half Moon Bay, Bucklands Beach marina damaged breakwater, low wake zone

All mariners are reminded to reduce their speed to 5 knots and/or their minimum steerage speed, in order to create a low wake while in the vicinity of the Bucklands Beach Marina. The breakwater was damage with the recent storm event and requires extensive repair. Mariners should navigate with caution while in this area.

Local Notice to Mariners 04 -18 Half Moon Bay, Bucklands Beach marina damaged breakwater, low wake zone
Map not to be used for navigation.

Christiaan Moss
Deputy Harbourmaster


Notice: 50-17 Navigation Hazard: Sunk Yacht - Henderson Creek

All mariners are advised of a yacht 9.7 meters in length that has sunk in the Henderson Creek, potentially impeding navigation. The yacht lies on the eastern side of the creek bank.

GPS coordinates:

  • Latitude 36° 44' 123
  • Longitude 174° 46' 123

All mariners are advised to navigate with extreme caution when transiting the creek.

Navigation Hazard - Sunk Yacht in Henderson Creek
Map not to be used for navigation.

Bruce Goff
Maritime Officer


Notice 22-17: Wairoa River, fallen tree (upper reaches), 20 July 2017

All Mariners are advised that a large tree has fallen into the upper reaches of the Wairoa River, potentially impeding navigation.

GPS coordinates:

  • Latitude 36°58’840
  • Longitude 175°02’655 

All mariners are advised to navigate with extreme caution in this area.

Notice 22–17 map
Map is not to be used for navigation.

Bruce Goff
Maritime Officer


Notice 08-17: Chart Plotters - updated 14 March 2017

All Mariners are reminded that electronic chart plotters are to be used as an aid to navigation and paper charts should be updated and consulted.

Electronic raster charts used on some plotters may not incorporate the latest chart corrections.

Mariners are reminded to use up to date charts for navigation and advised to contact their plotter supplier if in doubt.

Harbourmaster’s Office


Pest warning: Mediterranean Fanworm

The Mediterranean Farmworn is a pest which has been spotted in the Waitemata Harbour/inner Hauraki Gulf, as well as the Whangarei Harbour and Lyttleton Port.

Keep your boat's hull clean to reduce the risk of this pest clinging and causing damage to our marine life.

Marine Biosecurity Information: New Rules & Regulations

Marine pests spread easily through ballast water and hull fouling, including Mediterranean fanworm (Sabella spallanzanii) and Clubbed tunicate (Styela clava). Check to ensure your hull is clean and be aware of other regions rules before leaving Auckland.

Visit marinepests.nz for more information and to check marine biosecurity rules and regulations for different regions in the northern North Island.

Read further information on marine pests (PDF 334KB)


Weather information

For up-to-date weather information, visit the MetService website.

For VHF radio continuous weather forecast, please listen on Ch 20, 21, 22, 23 (channel depending on location).