"So much work went into preparing for this move we were surprised it took place so quickly," he said.
"There was a big sigh of relief when it went so well, then a feeling of elation that another big technical hurdle in the [bridge construction] project had been cleared."
The next step will be to hook up the hydraulic rams which will raise and lower the bascule. Mr Weston said that would probably happen next week.
Whangarei residents would see the bascule in action soon after as it had to be raised 50 times in its commissioning period to demonstrate it operated without problems.
Mr Weston said work left to do once the rams were working included finishing the track the bridge deck sits on, installing handrails, completing paintwork and sealing approach roads.
Everything was on target for the formal opening of the bridge on July 27, he said.
The Government is providing 14.9 million of the bridge's $32 million estimated final cost and Prime Minister John Key had been an early hope for cutting the ribbon which will start up to 8000 vehicles travelling across the bridge daily. However, Mr Heatley said he had been told neither Mr Key or Transport Minister Gerry Brownlee would be available to open the bridge.
And Mr Weston was not revealing yesterday who else might be considered.