Coasties heading into Auckland city this Sunday, November 3rd, can expect some citybound lane closures along the Northern Motorway and Auckland Harbour Bridge.

The Barfoot & Thompson Auckland Marathon is set to take place from 4 am to 12 midday, causing significant changes to traffic patterns in the area.

While the Harbour Bridge will remain open throughout the event, traffic will be reduced to three lanes in each direction, which may lead to delays for motorists.

NZTA advises no detour routes will be necessary, but drivers are encouraged to allow extra time for their journeys.

The marathon will impact several key areas: the Northern Busway’s bus-only lanes will close between Constellation Drive and Onewa Road, with runners entering the busway at Smales Farm.

Additionally, one lane of the southbound Northern Motorway will be closed after the Esmonde Road interchange, and the Onewa Road southbound on-ramp will be closed, including the bus lane.

Fortunately, the Esmonde Road on-ramp will remain open for citybound traffic.

South of Onewa Road, two left southbound lanes will close, allowing runners to use the clip-on lanes over the Harbour Bridge.

The Shelly Beach Road off-ramp will be closed to all traffic, as will the Curran Street on-ramp, while runners will exit the bridge and continue along Westhaven Drive into the city.

Motorists should also note that the Fanshawe Street citybound off-ramp will be closed from 2 am to 3 pm.

Additional road closures and parking restrictions will be in effect; further details can be found on Auckland Transport's website.