The road was closed while police’s Serious Crash Unit undertook a scene examination.
This evening, police said the road was expected to reopen about 6.45pm.
“Motorists are thanked for their patience while emergency services and contractors worked at the scene.”
Police earlier said the road had been blocked near the Oturere Stream in a remote section of the highway.
The New Zealand Transport Agency said SH1 was closed between Rangipō and Waiouru.
Motorists needed to detour on to SH49, SH4, SH47 and SH46, the transport agency said.
“Allow extra time for your journey,” the agency said.
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