Skip to content

Access keys for

  • h Home
  • m Menu
  • 0 Show list of access keys
  • 2 Skip to content
  • 3 Skip to top
edendale project banner

Project introduction

To realign State Highway 1 (SH1) around Edendale township to reduce travel times between Gore and Invercargill, and improve safety from the increasing number of heavy vehicles using this road.

  • Estimated project cost

    $15 million
  • Project type

    Road improvements
  • Project status


Project updates

How to safely use the new SH1 Edendale roundabout
Factsheets, (PDF)
Project update – October 2019
Project updates, (PDF)
Project update – July 2019
Project updates, (PDF)
Project update – December 2018
Project updates, (PDF)
SH1 Edendale realignment leaflet
Factsheets, (PDF)
SH1 Edendale realignment map
Project maps, (PDF)


This project being delivered by the NZ Transport Agency on behalf of the Government will improve access to Southland’s road network. Safety will be increased by shifting highway traffic away from Edendale, and the large Fonterra dairy processing plant at the southern entrance to the township. 

Currently SH1 passes through the northwest of Edendale.  Adjacent to the highway is the Fonterra site (their largest in New Zealand), the Edendale Primary School, several residential properties and a sports field.  The current section of highway has a tight 45km/h curve and three different speed limits.  An intersection provides access to the towns shopping area and other amenities. 

Two rail sidings into the Fonterra site from the main trunk line are used daily, resulting in delays for highway traffic. 

The safety and efficiency of this section of SH1 is affected by the various speed limits, road geometry and layout, along with rail crossings and heavy vehicles travelling through Edendale.  The liveability of the township is impacted by through-traffic noise, especially from the relatively high number of trucks operating on this section of highway. 

Realigning SH1 to the northwest of Edendale with a roundabout close to the southern end of the new 2.6km alignment future proofs the highway. It also supports Fonterra’s use of rail as a freight option and caters for any future expansion of their site. 

Project benefits

  • Improved access and safety on Southland’s main freight route.
  • Road users will no longer need to travel through the combination of tight curves, intersections and rail crossings on the current section of highway.
  • Shifts highway traffic away from residential properties and the local Edendale Primary School
  • Provides a consistent speed across a safe new highway alignment.
  • Improves access by creating a more direct highway connection between Invercargill and Gore.
  • A stock and light farm vehicles underpass will reduce highway crossings associated with the day-to-day operations of nearby farms.

Key features

  • A new highway alignment bypassing Edendale and the Fonterra site.
  • Improved safety for highway users and the surrounding community.
  • A four-legged roundabout with a design that caters for the 100km/h speed environment of the two highway approach links.
  • The highway will take a right angle route at the roundabout, with the two other legs linking Edendale via Salford Street and the Fonterra site.
  • The new alignment includes a passing lane for northbound traffic.
  • A livestock and light farm vehicle underpass servicing local farms.

What can be expected?

Construction starts in July 2018 with the project scheduled for completion in 2020.