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Ashburton River/ Hakatere Bridge, SH1, dip smoothed and speed back to 50km/hour


Waka Kotahi NZ Transport Agency has smoothed the dip in the Ashburton River/ Hakatere Bridge deck, enabling the bridge speed to go back to 50km/ hour, its usual posted speed limit.

Since the recent flooding and damage to one pier, the dip in the deck required the speed to be reduced to 30km/ hour, delaying traffic at peak periods.

  • The bridge now has 24/7 access for most vehicles.
  • The bridge is open for over-dimension loads and the operating requirements for over-dimensions are as they were before the flood.
  • The traffic management on the bridge has been substantially removed. All the cones along the centreline have been removed along with other cones on the edgeline.
  • Overweight guidelines are today being finalised and will be updated later today direct to industry/freight partners.

Waka Kotahi also recently installed electronic monitoring equipment to allow remote monitoring of the structure which will avoid more closures for manual monitoring.

Timeline for repair

Waka Kotahi is aiming to complete the bridge pier repair in the next two months.

“In the coming months we will be jacking the bridge to the right level at the damaged pier and fixing it at the right height,” says Jessica McFarlane, Network Manager, Waka Kotahi.

“We will leave the jacks in places so if we need to make any adjustments in future, they can be made easily.”

Ms McFarlane thanks all bridge users for their patience over the past three weeks as this bridge investigation got underway and traffic management for everyone’s safety was put in place.

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