A break-down on the stretch of road that joins two of Auckland's main motorways has now been cleared, but drivers should still expect delays, NZ Transport Agency (NZTA) warns.

The truck blocked the left southbound lane of the Victoria Park flyover, which links the Northern and Southern motorways, causing delays back to the Harbour Bridge.

Traffic is crawling and NZTA said southbound drivers should expect delays from Esmonde Rd to Saint Mary's Bay.