Maitland City Council has agreed to provide the $2.6million shortfall needed for improvements to the Government Road and Raymond Terrace Road project which is being predominately funded by the State's Housing Acceleration Fund (HAF).

The fund will provide $10.5million for the Thornton works.

Councillors voted unanimously at a meeting on Tuesday night to help with the project which has been a long-time hazard for motorists - particularly with the suburb's extraordinary residential and industrial growth.

Local residents have been crying out for safety provisions at the intersection for many years.

The Mercury reported earlier this year that planning was in its final stages for the new intersection with construction expected to commence in the 2020/21 financial year.

At a meeting in June council was advised that the project had progressed to the Gate 2 Review stage of the funding approval process. The Infrastructure NSW Review Team requested assurance that Council will meet the funding gap on the project beyond the Housing Acceleration Fund (HAF) allocation.

A report to this week's council meeting said that council's Thornton North Section 7.11 Contributions Plan Road and Traffic Facilities funds should be allocated to the project to fund the balance between the project cost and the available (HAF) commitment.

The Gate 2 Assurance Review is a key milestone in the process of gaining funding approval and commencing procurement of the project.