Person critically injured in Auckland Southern Motorway rush-hour crash, section of SH1 closed

NZTA said the motorway is closed to northbound traffic from the SH20 interchange to East Tamaki due to the crash.

Two nearby on-ramps at Redoubt Rd and Te Irirangi Dr were also closed.

NZTA said to follow the directions of emergency services on site and expect delays.

UPDATE 8:50AM
SH1 is CLOSED to northbound traffic from SH20 interchange to East Tamaki due to a serious crash. Follow the directions by emergency services on-site and expect DELAYS. ^SG https://t.co/ZGmAJEqFNZ pic.twitter.com/ETEezqW4uj

— NZ Transport Agency – Auckland & Northland (@nztaaklnth) August 11, 2025

Earlier, police said the left lane heading north was blocked, with further closures likely.

AdvertisementAdvertise with NZME.

Motorists were asked to avoid the area and take alternate routes where possible.

SH1 SOUTHERN MWY, NORTHBOUND – CRASH – 8:20AM
Due to a crash, the left lane is BLOCKED after Te Irirangi Dr on-ramp. Pass with care and expect delays. ^SG pic.twitter.com/mTqmYrgE6M

— NZ Transport Agency – Auckland & Northland (@nztaaklnth) August 11, 2025

NZTA said to expect delays and pass with care.

Traffic is gridlocked for approximately 8km back to Karaka from the crash scene.

Hato Hone St John was notified of a crash on the Southern Motorway, Goodwood Heights, at 7.51am – responding with one ambulance and two rapid response vehicles.

Map showing gridlocked traffic from Karaka to the crash scene. Photo / Google Maps

Sign up to The Daily H, a free newsletter curated by our editors and delivered straight to your inbox every weekday.