A faulty tail-gate lead to a trail of sewage from the Māngere Wastewater Treatment Plant heading towards the motorway in South Auckland today.
Sewage spilled out along Mark Ford Drive and Ascot Rd towards the motorway after an EnviroWaste truck had its tail-gate fail, resulting in a "sludge spill".
"We are unsure how much sludge was spilled but we estimate 1-2 cubic metres," Watercare spokeswoman Maxine Clayton said.
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"A clean-up crew responded quickly to remove the spill and traffic management was in place. The clean-up was completed within two hours."