Mulgoa Road upgrade between Glenmore Parkway and Jeanette Street

For more information, please see our August 2025 notification (PDF, 1002.03 KB).

Further details are available in our September 2025 notification (PDF, 436.31 KB).

Transport for NSW is currently finalising the project’s detailed design, to prepare for construction to begin. As part of this design work, we will be doing investigation work in the project area.

Construction is expected to start early 2026 and be completed by 2029.
 

The NSW Government is planning to widen and upgrade Mulgoa Road between Glenmore Parkway to Jeanette Street to support current and future traffic demands and expected growth in the area.

The upgraded Mulgoa Road/Castlereagh corridor will improve both road safety and travel times and reduce congestion by adding a lane in either direction.

Work is continuing to develop the corridor, and future upgrades are being delivered in stages, subject to available funding and priorities. 

The stages of the corridor upgrade being progressed include: 

• Museum Drive to Union Road (Stage 0): Delivered and providing benefits to the community since opening in June 2021
• Jeanette Street to Blaikie Road (Stage 1): Major construction started in early 2023 and is expected to be completed in 2026
• Glenmore Parkway to Jeanette Street (Stage 2): In detailed design.
• View the Mulgoa stages map here (PDF, 220.22 KB).

The key features of the project include:

Replacement of the roundabout at Glenmore Parkway and Mulgoa Road with traffic lights

Mulgoa Road design south of the intersection

• Three lanes approaching Glenmore Parkway intersection
• A right turn slip lane northbound
• Two lanes south of the intersection
• Right turn bay to turn in Gibbes Street

Glenmore Parkway design

• Two lanes approaching Mulgoa Road westbound
• A bus lane at the intersection
• Two slip lanes for left turn movements from Mulgoa Road southbound

Mulgoa Road design north of the intersection

• Three lanes north of the intersection
• Two longer turn lanes to the M4 eastbound

Upgrade of the intersection at Spencer Street/Schoolhouse Road (no extra lanes)

• A shared path on the eastern side of the upgraded road and pedestrian path on the western side. 

• September 2025 project notification - Ongoing investigation work on Mulgoa Road (PDF, 436.31 KB)
• June 2025 project notification - Ongoing investigation work on Mulgoa Road (PDF, 451 KB)
• March 2025 project notification - Investigation work from 20 March 2025 (PDF, 349.49 KB)

• March 2022 Review of Environmental Factors

  Mulgoa Road upgrade, between Glenmore Parkway to Jeanette Street and Blaikie Road to Union Road

• Appendix C

  Biodiversity

• Appendix D

  Traffic and transport impact assessment

• Appendix E

  Noise and vibration impact assessment

• Appendix F

  Hydrology and flooding assessment

• Appendix G

  Surface water and groundwater assessment

• Appendix H

  Aboriginal heritage

• Appendix I

  Non-Aboriginal heritage

• Appendix J

  Contamination detailed site investigation

• Appendix K

  Air quality assessment

• Appendix L

  Socio-economic impact assessment

• Appendix M

  Landscape character and visual impact assessment

• December 2022 Submissions Report

  Mulgoa Road upgrade Stage 2, 5A and 5B