He wanted to know if another route using Whatatiri Rd had been considered and other speakers also questioned the proposed route, with one kuia insisting the new state highway should run south through Pipiwai, Kamo and Whangarei to the port.
Paul Edwards, of Poroti, feared increased road safety issues outside Poroti Primary School and pollution of the Poroti Springs reserve.
Tane Te Rangi, of Pakotai, said the Mangakahia Valley had been exploited since the days of kauri timber and gumdigging.
"We all support progress and would prefer working with NZTA from the beginning rather than endure the battle Wright Rd residents have had over the dust problem on their road," he said.
Mr Te Rangi was supported by others calling for marae involvement "right at the sharp end" rather than "waiting for feedback". A kaumatua group was suggested for engagement with NZTA and there were calls for local people, rather than outside contractors, having an opportunity to work on the redesignated road.
NZTA Northland and Auckland media manager Sarah Azam said about 4500 vehicles now used the southern end of the proposed SH15 route daily.
"There isn't a breakdown for logging trucks, but heavy vehicles make up around 20 per cent of the traffic," she said.