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By 3pm yesterday, New Zealand Transport Agency crews had cleared one lane, allowing the road to reopen for a short time, until it was closed for the night.
Agency maintenance contract manager Mark Stewart said late yesterday afternoon the road would be inspected at dawn today "with a view to reopening one lane again at 8am Tuesday".
"Crews will be aiming to clear both lanes in the next day or so, but drivers should be ready for some short delays around this site this week," he said.