The preferred Contractors who have been shortlisted for the Tonkin Highway Extension project are now invited to submit a Request for Proposal (RFP) for the first stage of the extension from Thomas Road to Mundijong Road, along with the duplication of Thomas Road from Kargotich Road to South Western Highway.

The shortlisted companies include the following:

1. Tonkin Extend Alliance (consisting of Laing O’Rourke, Garli, WSP, and Arcadis)
2. Tonkin Extension Alliance (consisting of Georgiou, BMD, Civcon, GHD, and BG&E)

It is expected that an Alliance Contract will be awarded by late 2024.

Additionally, an Expression of Interest has been issued for the second stage of the project, which entails extending Tonkin Highway from Mundijong Road to South Western Highway.

Both stages of the project will be undertaken simultaneously.

Scope:

After two years of development work, the Tonkin Highway Extension project now includes the following listed below from north to south:

• A 14 km extension of Tonkin Highway from Thomas Road to South Western Highway, designed as a four-lane dual carriageway.
• A Principal Shared Path (PSP) running along the eastern side of the Tonkin Highway extension, spanning the entire 14 km length, with connections to Thomas Road, Orton Road, Bishop Road, Mundijong Road, and South Western Highway.
• Five underpasses situated at grade separation locations, including Thomas Road and Bishop Road
• A footbridge overpass at Orton Road
• Minor road connections at Copper Road and Adamson Street.
• A grade-separated interchange at Bishop Road.
• Roundabouts positioned on Tonkin Highway at Orton Road, Mundijong Road, and South Western Highway.
• Underpasses located at Abernethy Road (for road, pedestrian, cyclist, and equine use), Gossage Road (for equine use only), and Shanley Road (for road, pedestrian, cyclist, and equine use).
• Roundabouts at Hopkinson Road/Abernethy Road and Shanley Road/Jarrahdale Road/South Western Highway.
• Bridges constructed over rail at Bishop Road (as part of the interchange) and Wright Road.

Furthermore, funding has been allocated for the Thomas Road Upgrade project, which includes:

• The duplication of Thomas Road from Kargotich Road to South Western Highway.
• The construction of the Thomas Road/Tonkin Highway interchange.

Additionally, funding has been allocated for the Thomas Road Safety Improvements project, which includes enhancements such as the Thomas Road and Kargotich Road roundabout.

Environment:

The Tonkin Highway Extension project has secured state environmental approvals under the Environmental Protection Act.

As per Section 95A(3) of the EPBC Act, the Referral document and Preliminary Documentation for the proposed action were open for public comment from June 18, 2021, to July 2, 2021. During this period, no public submissions were received on the Preliminary Documentation.

Following Section 95B(4) of the EPBC Act, a written statement indicating the absence of comments received, along with the EPBC referral document and the Preliminary Documentation, were made available to the public for information for 10 business days starting from July 23, 2021. No submissions were received during this second stage of advertising.

On 17 August 2021, DAWE provided conditional environmental approval for the proposal. Copies of the referral and Preliminary Documentation are available below.

Preliminary Documentation:

• Tonkin Highway Extension Preliminary Documentation – Part 1 (PDF)
• Tonkin Highway Extension Preliminary Documentation – Part 2 (PDF)
• Tonkin Highway Extension Preliminary Documentation – Part 3 (PDF)
• Appendix A – PD Request Further Information Letter signed (PDF)
• Appendix B -Layout Plan (PDF)
• Appendix C – Flora and Vegetation Survey (Woodman 2020) (PDF)
• Appendix D – Black Cockatoo Breeding Habitat Survey (Kirkby 2020) (PDF)
• Appendix E – Black Cockatoo Habitat Quality Assessment (PDF)
• Appendix F – Dieback Assessment (Glevan 2020) (PDF)
• Appendix G – Biological Survey Adequacy and Limitations (PDF)
• Appendix H -The Offset Strategy (PDF)
• Appendix I – Action Management Plan (PDF)
• Appendix J – Tetraria australiensis Fire Management Plan (PDF)

Referral:

• Tonkin Highway Extension Referral 2019-8608 (PDF)
• Tonkin Highway Extension Referral Att 1 – Appendix 1 Proposed Action Location Lot information (PDF)
• Tonkin Highway Extension Referral Att 2 – Figure 1 Site Location (PDF)
• Tonkin Highway Extension Referral Att 3 – Figure 2 Vegetation Association (PDF)
• Tonkin Highway Extension Referral Att 4 – Figure 3 Vegetation Condition (PDF)
• Tonkin Highway Extension Referral Att 5 – Figure 4 Threatened Flora and Ecological Communities (PDF)
• Tonkin Highway Extension Referral Att 6 – Figure 5 Black Cockatoo Trees (PDF)
• Tonkin Highway Extension Referral Att 7 – Figure 6 Black Cockatoo Trees with Hollows (PDF)
• Tonkin Highway Extension Referral Att 8 – Figure 7 Black Cockatoo Foraging Habitat (PDF)
• Tonkin Highway Extension Referral Att 9 – Figure 8 Regional Black Cockatoo Habitat (PDF)
• Tonkin Highway Extension Referral Att 10 – Figure 9 Wetlands and Watercourses (PDF)
• Tonkin Highway Extension Referral Att 11 – Mundijong Road Spring Flora Survey (PDF)
• Tonkin Highway Extension Referral Att 12 – Ministerial Statement 595 (PDF)
• Tonkin Highway Extension Referral Att 13 – Tonkin Hwy Black Cockatoo Assessment (PDF)
• Tonkin Highway Extension Referral Att 14 – Tonkin Highway Extension Reconnaissance Flora Survey (PDF)
• Tonkin Highway Extension Referral Att 15 – Tonkin Highway Extension EIA Final (PDF)

Source: Link

Date of Publication: 22 March 2024