Grimseys Road will be closed southbound between Dunbarton St and Prestons Rd for around a week from Monday 14 September, with a detour in place for traffic including the 125 bus. This will allow work at the intersection relating to the approach to the CNC bridge. This closure does not affect traffic on Prestons Rd or northbound traffic on Grimseys.
https://www.nzta.govt.nz/assets/projects/christchurch-northern-corridor/CNC-prestons-road-project-update-20200909.pdf