Police are appealing for help to trace the last movements of a man before he was hit by a truck on one of Tauranga's busiest expressways.
The 39-year-old was critically injured when he was struck by the logging truck about 4.40am yesterday on Takitimu Drive, above Chapel St.
The incident sparked the partial closure of Tauranga Harbour Bridge until just after 8am as police and emergency services worked to treat the man and clear the scene.
He was taken to Tauranga Hospital, then was transferred to Waikato Hospital's critical care unit, where he remained in a critical condition last night.
Acting Senior Sergeant Trinity Milham said police were still trying to work out how the man came to be on the highway, where there was no pedestrian access and an 80km/h speed limit. The section of highway was a key arterial route for the Port of Tauranga and was used regularly by heavy port-bound vehicles.