Motorists are being warned of a four night road closure through the Kaimai Range starting tonight

State Highway 29 will close from 8pm-3:30am through until Wednesday to undertake important asphalt renewals.

NZTA's Roger Brady, says the work's essential due to the amount of cars that use the road between Waikato and Bay of Plenty.

He says they see around 14 to 15-thousand vehicles per day so the work's critical.