"This weekend we're able to offer an alternative route for light vehicles, which should lessen the delays."
Northbound traffic can bypass the tree felling work via Barrett, Old Highway and Esdaile Rds. This route is not suitable for heavy vehicles. There is no alternative route available for southbound traffic.
Stop/Go traffic management will be in place with a 30kmh temporary speed limit.
"Our contractors will be actively working to minimise any delays as much as possible," Campbell said.
"Please take extra care, reduce your speed and follow directions of traffic management staff and signage."
In the event of bad weather or other unforeseen circumstances, work may be postponed.
Visit the interactive Waka Kotahi Journey Planner website (www.journeys.nzta.govt.nz) for the latest information on roadworks, traffic, road closures and detours to help plan your trip.
Waka Kotahi thanked motorists for their patience.