In 2012 Matakohe woman Sue Reyland was seriously injured in a crash on Anderson's bridge.
The Matakohe Bridge Concern Committee was then founded to campaign for the re-alignment of the bridges, and a petition with more than 1500 signatures handed to Mr Sabin earlier this year.
He said Kaipara district commissioners had also made it clear the re-alignment was their top state highway priority.
"The RTC and NZTA are now committed to a prioritisation process for this project for the next National Land Transport Programme which runs from 2015-2018."
NZTA's regional director for Auckland/Northland, Ernst Zollner, said Northland's current 2012-15 Regional Land Transport Programme did not include the bridges.
Structurally both were in good condition and well maintained, Mr Zollner said. Recent maintenance included the installation of skid-resistant surfaces, replacing timber decking and guardrails, improved signage, and removal of vegetation to improve visibility. NZTA crash records based on information provided by the police attending crashes showed that since 1980 there had been one crash fatality at Anderson Bridge in 1986.
Mr Sabin's public meeting will be at the Matakohe War Memorial Hall on Monday July 21, starting at 6.30pm.