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About the project

The objective of the project is to improve the safety, efficiency and access of the Bass Highway at Leith.

In late 2017, to immediately improve the safety of the intersections, changes were made to the Leith and Turners Beach bus routes to reduce the need for buses to turn right onto the Bass Highway from Short Street and Braddons Lookout Road.

In May 2018, electronic warning signage was also installed to alert highway drivers of vehicles entering from the side roads.

In 2018, we engaged with the community on a number of options. Following feedback from the community at this time, the overpass concept design was revised to include slip lanes and ramps to reduce the amount of traffic travelling through local roads in Leith.

Update – January 2022

We have responded to community feedback about a proposed overpass on the Bass Highway at Leith and will instead pursue other upgrade options to improve safe access to the highway from two existing junctions.

Instead of building a grade-separated overpass, the Bass Highway junctions with Short Street and Braddons Lookout Road will be structurally improved, making it easier and safer for vehicles to enter and exit the highway.

This is a new design, arrived at as a result of community feedback and additional expert engineering advice.

The new design features a structured separation of right-turning traffic to improve safety at the intersections. This will enable improved visibility for vehicles turning right both on and off the Bass Highway at both intersections and a hard separation for both left and right turning vehicles.

A Summary of the Consultation Outcomes can be viewed here.

We will continue to monitor traffic conditions and safety to ensure the risk of crashes is mitigated.

We are determined to deliver an upgrade which improves safety - that is a non-negotiable.

Community feedback will be sought on the final designs of the intersection upgrades in early 2022.

Bass Highway - Leith Junction Improvements

1Community consultation

Seven public consultation sessions were held in Turner’s Beach on Friday, 23 July 2021 and Saturday, 24 July 2021.

Each 90-minute session allowed the community to have dedicated time with a project team member and to ask questions while viewing consultation materials.

Four pop up community consultation sessions were also held across a range of North West locations on Saturday, 7 August 2021 and Sunday, 8 August 2021.

Consultation materials were available for public comment and to view online and during business hours at the Central Coast Council, 9 King Edward Street, Ulverstone, until Wednesday 11 August.

The consultation materials included the consideration of options such as a roundabout, speed reduction, right turn bans, an overpass, and a summary of the next steps.

Consultation materials

1. Next Steps Timeline

2. Project Objectives, Strategic Context, Project Timeline

3. Overpass Concept Designs 2018

4. Planning Stage (Multi Criteria Analysis) 2018-2020

5. Multi Criteria Analysis Option Poster

6. Multi Criteria Analysis Detail

7. Option Posters - with and without ramps

8. Overpass with Ramps Illustration (Modelling)

9. Overpass with Ramps Illustration (Section)

Previous community consultation

In 2018, we engaged with the community on a number of options about how to improve the safety, efficiency and access of the Bass Highway at Leith.

The report on the previous consultation period outcomes can be accessed below.

Leith Overpass Concept Design Draft Consultation Outcomes Report.

A Multi-Criteria Analysis was used to assess and compare the five options proposed. Each option was ranked against its ability to meet project objectives by the MCA group, which was made up of representatives from RACT, Central Coast Council, Forth Primary School, Forth Primary School Association, and the Tasmanian Transport Association.

The Multi-Criteria Analysis (MCA) was one part of the initial consultation process, which also included online and in-person community consultation.

The MCA identified the proposed overpass with slip lanes and ramps as the best way of achieving overall contribution to the project objectives.

Contact details

For further information about the project, please contact the project team on 03 6210 0662 or by email at leithproject@ghd.com