It happened around 10 a.m. Wednesday near a construction site on Haddonfield-Berlin Road (Route 561) near Lafayette Avenue.
Video from Chopper 6 HD showed a dump truck with its open-back bed raised and entangled in power lines.
At least one snapped utility pole was seen nearby.
There were no immediate reports of injuries.
Haddonfield-Berlin Road was blocked in both directions as crews worked to the clear the downed lines, free the dump truck and repair the broken utility pole.
Motorists were advised to seek alternate routes.
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