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Long Valley Road Improvement Works

Latest News

Works for the southbound overtaking lane, between Long Valley Cottages Road and Mine Flat Road commenced on Tuesday, 16 May 2023 and are expected to be completed in mid-2024, weather permitting.

Remediation works on the overtaking lane between the Steam Ranger Railway Line and Gemmels road are expected to commence in April 2024 and be completed in early May 2024, weather permitting. Read the latest update for more information

About the project

We are delivering safety improvement works on Long Valley Road. This will involve the construction of two new southbound overtaking lanes on Long Valley Road between the railway line to Gemmell Road, and between north of Valley Cottages Road and to the south of Mine Flat Road. Works also include two junction upgrades at Stirling Hill Road and Gemmell Road.

These improvement works form part of the $155 million South Australian Rural Roads Safety Package, and the $150 million Adelaide Hills Productivity and Road Safety Package jointly funded (80:20) by the Australian and South Australian governments.


Works are continuing on the southbound overtaking lane between north of Valley Cottages Road and to the south of Mine Flat Road and include.

  • installation of wire medium safety barrier;
  • resurfacing and pavement rehabilitation, wider lanes and sealed shoulders;
  • upgraded safety barriers and upgraded signage;
  • upgraded drainage including kerb and gutter;
  • wide centre line and audio tactile line marking;
  • the installation of new u-turn locations at the ends of the southbound overtaking lane approximately 1.5km north of Long Valley Cottages Road to south of Mine Flat Road;
  • vegetation management and removal (to improve sight distances and allow for increased width); and
  • services relocations.

We are also undertaking pavement remediation works on the southbound overtaking lane on Long Valley Road between the Steam Ranger railway line and Gemmells Road, and resealing works on Long Valley Road, between Bunnett Road and Wellington Road.


View the list of Current and Completed works below.

Current works

LocationScopeStart DateCompletion Date
Long Valley Road - between Long Valley Cottages Road and Mine Flat Road Southbound overtaking lane Construction commenced on 16 May 2023 June 2024
Long Valley Road - from the railway line to Gemmell RoadSouthbound overtaking lane remediation Works will commence in April 2024May 2024
Long Valley Road - between Bunnett Road and Wellington RoadPavement maintenance Works will commence in April 2024May 2024
*For works not already commenced dates are estimated start dates, weather permitting.
Completed works

LocationScopeCompletion Date
Long Valley Road - from the railway line to Gemmell Road Southbound overtaking lane

May 2023

Bonython Road and Long Valley Road Junction Upgrade June 2022
Archer Hill Road and Long Valley Road Junction Upgrade June 2022
Pursell Road and Long Valley Road Junction Upgrade June 2022
Treutler Road and Long Valley Road Junction Upgrade June 2022
Various locations Installation of safety barrier August 2021
Various locations Shoulder widening and sealing May 2021

Further information

To find out more about the project or register for future updates, please contact the project team at the following: