Police are asking witnesses to Sunday morning's fatal crash near Taita Rock to come forward.
The driver of a white Ford Laser sedan lost control of his vehicle on a gravel road beside the Hutt River, hitting a large timber bollard.
Police would like to speak with anyone who may have seen the driver in the area, prior to the crash, between 10:30 and 11:15 on Sunday morning.
Any one with information that may assist Police with their enquiries is asked to contact Senior Sergeant Warren Harris of the Wellington Road Policing Group on (04) 381 2000. Information can also be provided anonymously to Crimestoppers on 0800 555 111.