For those driving in the Hillcrest area, the Cobham Drive Overbridge (over the southern end of the Ring Road) is now open:

https://ourhamilton.co.nz/on-the-move/traffic-changes-on-cobham-drive-as-ring-road-nears-completion/

https://www.stuff.co.nz/waikato-times/news/300620446/traffic-moves-to-cobham-drive-overbridge-in-hamilton?cid=app-iPhone