A serious crash in the Lower Hutt suburb of Wainuiomata on Monday morning has caused traffic delays that will continue into rush hour.
One person was seriously injured in the collision between a car and a motorcycle on the Wainuiomata side of the hill road just after 11.30am.
The only road in and out of the suburb has reopened to traffic but is down to one lane in each direction.
At about 3pm Hutt City Council posted on Facebook that people should expect delays for "at least the next one to two hours".
Wainuiomata resident Chris Mclaughlin said traffic had been gridlocked for hours.
"This is a pretty major event ... they normally only have one lane closed on minor crashes, but to have one entire side closed, it's pretty significant," he said.
"Quite often they can get it sorted out within an hour, but this one, with the Serious Crash Unit being here, [it's] pretty serious."
Mclaughlin said he was walking in the area and saw the scene of the crash about an hour after it occurred.
"Looked pretty gnarly with the motorcycle flipped over, pretty banged up, and then along to the left on the shoulder there was another vehicle that the police Serious Crash Unit was investigating."
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