Central Coast Highway and Tumbi Road intersection upgrade

We will be continuing work on the upgrade Friday 1 August to Sunday 31 August, 2025.

For more information read the August project update (PDF, 475.84 KB).

Changes to the turning lanes at the Central Coast Highway and Tumbi Road intersection are now in place.

For more information, please view the recent alert.

We’ll be working near the intersection of Central Coast Highway and Tumbi Road from Tuesday 1 July to Thursday 31 July, 2025, weather permitting.

Due to the high traffic volumes during the day, we will be carrying out works at night to minimise disruption to road users and ensure the safety of workers. Out of hours work will happen at night between 7pm and 7am from Sunday to Thursday.

For more information read the July project update (PDF, 470.88 KB).

Work on the Central Coast Highway and Tumbi Road intersection project will commence in June. 

The project is expected take about two years to complete. We will keep the community updated as work progresses.

For more information read the June project update (PDF, 280.36 KB).

We will be starting site establishment during June. Work includes survey work, site investigations, installation of concrete safety barriers and signage, environmental controls, clearing vegetation and establishment of a site compound.

For more information read the May project update (PDF, 411.47 KB).

Daracon has been awarded the contract for the upgrade of the Central Coast Highway and Tumbi Road intersection. 

Construction work will start in mid-2025.

The Central Coast Highway provides an important connection between the M1 Pacific Motorway at Kariong and the Pacific Highway at Doyalson through Gosford, Erina and The Entrance.

With around 26,000 motorists using the Central Coast Highway between Wamberal and Bateau Bay daily, the NSW Government invested in early planning for the upgrade to help ensure the highway was prepared to handle future growth. 

In June 2020, we sought feedback on the proposed strategic design and received general support for widening the highway to two lanes in each direction to improve safety and traffic flow. 

The upgrade of the most congested section, being the intersection at Central Coast Highway and Tumbi Road was prioritised and fast tracked. Early work to prepare for the intersection upgrade has now been completed.

Construction for the main works on the Tumbi Road intersection upgrade commenced in mid 2025. The project will take about two years to complete.

The upgrade would:

• Reduce delays, queuing and improve traffic flow at the intersection
• Improve journey reliability and safety for all road users
• Provide more reliable public transport amenities and access
• Improve local walking and cycling connections.

The Central Coast Highway and Tumbi Road intersection upgrade would include:

• Replacing the existing intersection roundabout with traffic lights
• Widening the Central Coast Highway north of the intersection to two lanes in each direction
• Providing two right turn lanes out of Tumbi Road onto the highway southbound
• Lengthening the left turn lane into Tumbi Road from the northbound lanes of the highway
• Providing a right turn lane into Tumbi Road from the southbound lanes of the highway
• New and upgraded footpaths and shared paths
• Providing a u-turn bay in front of Pacific Garden Hotel for southbound traffic
• Providing an interim transition back to the existing arrangements at the northern limit of works, near Forresters Beach Garden Centre
• Relocating two existing bus stops to a common location northbound on the Central Coast Highway north of the intersection.

Construction work commenced in mid-2025. The project will take about two years to complete.

We will keep the community updated as work progresses.

• August 2025 - Out of hours work (PDF, 475.84 KB)
  We will be continuing work on the upgrade Friday 1 August to Sunday 31 August, 2025.
• July 2025 - Out of hours work (PDF, 470.88 KB)
  We’ll be working near the intersection of Central Coast Highway and Tumbi Road from Tuesday 1 July to Thursday 31 July, 2025, weather permitting.
  Due to the high traffic volumes during the day, we will be carrying out works at night to minimise disruption to road users and ensure the safety of workers. Out of hours work will happen at night between 7pm and 7am from Sunday to Thursday.
• June 2025 - Start of work (PDF, 280.36 KB)
  Work on the Central Coast Highway and Tumbi Road intersection project will commence in June. 
  The project is expected take about two years to complete. We will keep the community updated as work progresses.
• May 2025 - Site establishment work (PDF, 411.47 KB)
  Work includes survey work, site investigations, installation of concrete safety barriers and signage, environmental controls, clearing vegetation and establishment of a site compound.
• June 2024 - Project Update (PDF, 288.3 KB)
  For the next stage of the project, Transport for NSW has invited Expressions of Interest (EOI) from pre-qualified contractors to build the upgrade of the highway with Tumbi Road.
• November 2023 - Early works complete (PDF, 453.69 KB)
  Early works to prepare for the Central Coast Highway and Tumbi Road intersection upgrade are now complete.
• September 2023 - Early works update (PDF, 264.53 KB)
  Early works to prepare for the Central Coast Highway and Tumbi Road intersection upgrade will soon be complete.
• May 2023 - Ongoing early work (PDF, 220.16 KB)
  Early work continues in preparation for the Central Coast Highway and Tumbi Road intersection upgrade.
• February 2023 - community notification (PDF, 254.91 KB)
  Early work on Tumbi Road and Central Coast Highway intersection, Wamberal from Sunday 12 February.

• June 2024 project update (PDF, 288.3 KB)
  Geotechnical and survey investigations.

• June 2022 project update

  Submissions report now online.

• October 2021 project update

  Concept design and environmental assessment.

• Submissions report June 2022

  Central Coast Highway and Tumbi Road Intersection Upgrade.

• October 2021 review of environmental factors

  Central Coast Highway and Tumbi Road Intersection Upgrade.

• Appendix A

  Consideration of clause 228(2) factors and matters of national environmental significance and Commonwealth land.

• Appendix B

  Statutory consultation checklists.

• Appendix C

  Biodiversity Assessment Report.

• Appendix D

  Surface Water Assessment.

• Appendix E

  Landscape Character and Visual Impact Assessment.

• Appendix F

  Groundwater Assessment.

• Appendix G

  Preliminary Site Investigation.

• Appendix H

  Traffic Modelling report.

• Appendix I

  Construction and Operational Noise and Vibration Impact Assessment.

• Appendix J

  Stage 1 PACHCI Assessment and Native Title Searches.

• Appendix K

  Heritage Database Searches – Non-Aboriginal.

• Appendix L

  Socio-economic Impact Assessment.

• Changed traffic conditions on the Central Coast Highway and Tumbi Road intersection, Wamberal (PDF, 200.09 KB)