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SH30 Kōpaki rail overbridge replacement

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approaching kopaki rail overbridge with 30km sign

Project introduction

We’re replacing the old single lane timber bridge with a two-lane bridge and realigning SH30 and Kōpaki Road and shifting the intersection with Kōpaki Road further south to make the road safer.

  • Estimated project dates

    Jun 2021–Dec 2023
  • Estimated project cost

    $14.6 million
  • Project type

    Bridge replacement
  • Project status

    Construction

Project background

The existing overbridge spanning the main trunk railway line at Kōpaki on State Highway 30 is at the end of its life and in need of replacement.

A new bridge is under construction alongside the old one, which will remain open until the new bridge is completed.

The intersection between Kōpaki Road and SH30 is being moved further away from the bridge to allow for better visibility for turning traffic.

When complete the new bridge will be able to be used by all trucks, including high productivity motor vehicles (HPMVs).

The old bridge will be removed once the new one is open to traffic.

Key features

A new two-lane bridge will be built alongside the existing one.

State Highway 30 and the intersection with Kōpaki Road will be realigned to provide better visibility make them safer.

Our partners on this project