Police booked two drivers for drink-driving at Halls Gap during the Grampians Jazz Festival weekend.

Senior Constable Rod Rickard said an Ararat man, 23, would be summonsed to Stawell Magistrate's Court for allegedly having exceeded the prescribed concentration of alcohol.

Police allege he recorded a blood alcohol concentration of 0.041 per cent.

"He was a disqualified learner driver, so it should have been zero," Sen Const Rickard said.

An Albury man, 74, lost 10 demerit points and was fined $433 after being intercepted by police in Grampians Road on Friday night.

"He returned a reading of 0.054 per cent," Sen Const Rickard said.

Police breath tested more than 500 drivers during the Grampians Jazz Festival, which was from Friday to Sunday.

Northern Grampians Highway Patrol officer in charge Sergeant Rod Davis said he was disappointed people were still being detected with

alcohol in their systems following big events.

"Please put some strategies in place to get safely back to your accommodation or home," he said.

"Appoint a designated driver, or make arrangements so you don't need to use a motor vehicle."

Police also interviewed a Kyneton woman for speeding on Sunday.

"She was travelling at 116 kilometres an hour on Grampians Road, in a 100kmh zone," Sgt Davis said.

"A person was spoken to in relation to failing to wear a seatbelt, and more than five defect notices were issued for repairs on vehicles.

"They mainly involved windscreens and tyres in poor condition."