Delays relating to Covid and constraints on material supplies have meant the interchange is now expected to be completed and fully open from September this year, the council says.
The Wairere Drive extension will initially have a chipseal surface, with final asphalt surfacing to be completed in six to 12 months.
"While this section is open, some lane closures may be required at various times and traffic management will remain in place. It will be important for motorists to continue being careful when traveling in this area, particularly those giving way to state highway traffic when using the ramps," said Allen.
"It's an exciting time as we draw closer to having this important connection in our transport network completely operational. We appreciate your patience as we work through the final phases of the project."
When the whole project is completed, Cobham Drive will be raised to allow the four-laned Wairere Drive extension to pass underneath and connect to the bridge now being built over the Waikato River to Peacocke.
The total project cost to build the final section of the Ring Road is $62M, of which 72 per cent is funded by central government through Waka Kotahi NZ Transport Agency subsidies.
For more information on Hamilton's Ring Road – Wairere Drive extension, click here.