Police Senior Constable Melissa Seach said the man, 46, was allegedly seen driving erratically prior to a minor collision on the Western Highway at around 4PM.

The driver was tested after the incident and blew well over the limit.

"(He) returned a positive preliminary breath test and was taken to a police station where he returned a readying of 0.193," Snr Constable Seach said.

"He is expected to be charged on summons with drink driving and traffic related offences at a later date."

No one was injured in the incident.

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