Emergency services were called to the scene, on Little Valley Rd, just after 7pm.
A people mover with four people inside had rolled and debris from the vehicle was strewn across the road.
All four people in the car, including a parent of the driver, were intoxicated, police said, but no-one was injured in the crash.
The driver was so drunk he had difficulty standing.
Alexandra Police Senior Sergeant Ian Kerrisk says it was a disaster waiting to happen.
“We put a lot of work into educating people about driving safely and not drinking and driving and have a highly visible presence on our local roads this weekend, but people are still choosing to put themselves and others at risk.”
A later test returned a reading in excess of the adult legal limit of 400 mg/l.
He is being referred to Youth Aid.
“The attitude of the young driver and the choice of the parent who allowed him to drive were disappointing.”
“It’s sheer luck that they didn’t end up killing themselves or other road users,” Sen Sgt Kerrisk says.