"Trucks park in the driveway every day I didn't realise there was no driver at first. I do not know what happened."
The street lamp sheared in two. The truck was also lodged on a gas pipe which complicated the operation to remove it. Unison contractors and Vector staff were on hand to supervise the truck's removal.
Unison Power's communication advisor Naomi Fergusson said it was lucky the incident occurred in the daytime as there was no electricity flowing through the pole.
Mrs Fergusson said it did not cause a power outage, so no customers were affected by the downed pole.
"It would have been a different story if it happened at night when the pole was live."
Traffic diversions remained in place for about an hour as the truck blocked off one lane of Te Ngae Road and traffic travelling towards the airport was diverted through Brent Rd.
Vector's external relations manager Sandy Hodge said no gas outages were listed in the system.
Neighbour Lynette Beamsley was inside her house at the time and said she heard the crash.
"It was quite loud and I thought, 'There's been an accident ... I saw the pole ... we have been very lucky."
Rotorua police acting Inspector Brendon Keenan said the truck's driver had left the braking system off.