"It's too late, people are already in the traffic ... and [the authorities] could have some sensible policies around it," Adamson said.
"If they just stopped trucks and buses and let cars go through and do some actual traffic management, you don't need to destroy business."
The bridge was reduced to one lane heading into the city around 6.30am, before the call was made to close State Highway 1 entirely just before 7am.
MetService reported wind gusts on the bridge at that time had reached up to 95km/h.
Adamson said it was windy but it was "nothing outrageous".
Colleagues said the buses they were on were rocking around in the wind, and Adamson said he wouldn't have wanted to be on a motorbike.
"The cost of having four North Shore people out of work for a half day and a couple of people from the south coming in late, you're talking thousands of dollars."
After an already turbulent year with the coronavirus-forced lockdowns, the chaos surrounding the bridge is another headache to deal with for Adamson.