Mulgoa Road / Castlereagh Road corridor upgrade

The NSW Government is planning to widen and upgrade 6.5 kilometres of Mulgoa Road / Castlereagh Road between Glenmore Parkway, Glenmore Park and Andrews Road, Penrith to support current and future traffic demands and expected growth in the area. This includes the Australian and NSW governments' commitment of $100 million to fast-track the first stage of the upgrade between Jeanette Street, Regentville and Blaikie Road, Jamisontown.

Artist impression of the Mulgoa Road / Castlereagh Road corridor upgrade from the M4 Motorway looking north

Updates and announcements

Night and day work for investigations - Mulgoa Road from April to June 2018

Roads and Maritime Services will carry out geotechnical investigations in several locations along Mulgoa Road and some surrounding local roads between April and June 2018. These investigations will help inform the design and environmental assessment for the first stage of the Mulgoa Road / Castlereagh Road corridor upgrade.

Community consultation report now available

Roads and Maritime Services invited comments from the community and stakeholders on the preferred option for the Mulgoa Road / Castlereagh Road corridor upgrade in April and May 2017. The Consultation Report (PDF, 3.5Mb) summarising and responding to feedback received during the consultation period is now available.

As a result of feedback received, Roads and Maritime has made the following adjustments to the displayed option in April and May 2017:

  • change in design south of Glenmore Parkway to use the existing road preservation and remove the impact to property (Appendix G – Sketch A)
  • introduction of a median on Glenbrook Street to prevent rear-end incidents while accessing Peter Court (Appendix G– Sketch B)
  • further investigation is required for the alignment along Hatchinson Crescent, Huron Place and Peter Court (Appendix G – Sketch B)
  • further investigation is required for the alignment outside the Grey Gums Hotel property to allow for access from Mulgoa Road into the property (Appendix G Sketch B)
  • minor changes to median and verges to work with the proposed development by Panthers (Appendix G – Sketch C)
  • further investigation is required for the Union Road intersection and if required, changes will be considered in consultation with Penrith City Council.

For information about the project see our animation video, and the Preferred Option Report (PDF, 5.24Mb).

Project snapshot

  • project value: $100 million (for stage one only)
  • funding: Australian and NSW governments.

Project background

The Mulgoa Road / Castlereagh Road corridor is a State arterial road and one of two main access routes from Penrith to the M4 Motorway. Mulgoa Road and The Northern Road connect Penrith’s Local Government Area, including its Central Business District, with other parts of greater Sydney.

The corridor carries significant traffic volumes of up to 3800 vehicles per hour during morning and afternoon peak periods.

There are a number of key developments served by Mulgoa Road / Castlereagh Road that have increased population, employment and traffic congestion in the area. These include Penrith Panthers Entertainment precinct, Penrith Station, Riverlink precinct, Penrith Stadium, Penrith Lakes and the Penrith Homemaker Centre, as well as the new urban land releases at Glenmore Park and Thornton.

Stage 1 Jeanette Street to Blaikie Road

In July 2016, the Australian and NSW governments announced a funding commitment of $100 million to widen Mulgoa Road between Jeanette Street, Regentville and Blaikie Road, Jamisontown. As part of the upgrade of this section, Mulgoa Road would be widened from two to three lanes in each direction. Comments received from the preferred option consultation will inform the concept design and environmental assessment for this section which will be displayed for community consultation. Further planning and development for the other sections are dependent on additional funding.

Project benefits

The preferred option would:

  • improve road capacity to cater to population and employment growth
  • manage congestion and delays along Mulgoa Road / Castlereagh Road during peak periods
  • reduce travel times and transport costs
  • improve road safety for all users
  • improve the movement of goods and trucks
  • improve access to public transport
  • provide safe and effective pedestrian and cycling infrastructure
  • improve urban design and visual aspects of the road corridor.

Key features

The preferred option includes:

  • three lanes in each direction
  • upgraded intersections – including traffic light intersections at Andrews Road, Coreen Avenue and Glenmore Parkway
  • bus priority at intersections
  • a separated path for pedestrians and cyclists on the eastern side
  • a footpath on the western side
  • landscaping along the corridor.

What happens next?

The Mulgoa Road / Castlereagh Road corridor between Glenmore Parkway, Glenmore Park and Andrews Road, Penrith will now be preserved for the future upgrade. 

The Australian and NSW governments are fast-tracking work on the first stage of corridor between Jeanette Street, Regentville and Blaikie Road, Jamisontown. 

A concept design for this part of the upgrade is currently being developed with a Review of Environmental Factors to be displayed for comment in mid-2018.

Other projects in the area

Jane Street and Mulgoa Road Infrastructure upgrade

The Australian and NSW governments have jointly committed $70 million towards developing and constructing road improvements to alleviate congestion and improve traffic flow along Mulgoa and Castlereagh Road adjacent to Penrith’s CBD.

M4 Smart Motorway Project

As a part of the M4 Smart Motorway Project, work will be done to realign, widen and extend the M4 ramps at Mulgoa Road as well as ramp meters and ramp control signs installed.

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