The following series of route addenda providing alternative routes for HPMVs when standard routes are closed have been issued by Waka Kotahi NZ Transport Agency’s Palmerston North office.

These can also be found on NZTA’s website here:
https://www.nzta.govt.nz/commercial-driving/high-productivity/high-productivity-motor-vehicles-and-hpmv-permits/heavy-vehicle-permit-detours/