The Highway
NPBH is under construction as a single project and will extend the dual carriageway 70.5 kilometres from Kwinana Freeway at Safety Bay Road in Baldivis, around the eastern side of the Peel Inlet and Harvey Estuary to join the existing dual carriageway on Old Coast Road at Lake Clifton.
The NPBH will be constructed to freeway standard from Safety Bay Road to South Yunderup a distance of some 32 kilometres. The remainder of the route, 38 kilometres, will initially be built as a rural highway, with the ability to upgrade it in the future as traffic demands increase.
The road will be a continuous dual carriageway with two lanes in each direction.
Five grade-separated interchanges will be constructed at Safety Bay Road, Karnup Road, Paganoni Road, Lakes Road and Pinjarra Road. With the exception of the Pinjarra Road interchange, these will be constructed as diamond interchanges allowing for movements in all directions. The Pinjarra Road interchange will be constructed as a Parclo where all the on and off ramps will be provided on the northern side due to the proximity of the Murray River.
Nine intersections will be constructed and will have the capacity to be upgraded to interchanges in the future. They will be located at Beacham Road, Greenlands Road, Paull Road, Mills Road, Herron Point Road, Old Bunbury Road, Dorsett Road, Old Coast Road and Peppermint Grove Road.
View Project Map (PDF 1620KB)
Design Standards:
|
Safety Bay Road to South Yunderup |
South Yunderup to Old Coast Road |
Traffic lanes |
2 x 2 each 3.5m |
2 x 2 each 3.5m |
Emergency stopping lane / outside shoulder |
3.0m (sealed) |
3.0m sealed |
Median shoulder |
1.5m (sealed) |
1.5m sealed |
Seal width |
11.5m |
11.5m |
Central median |
23.5m to 27.6m wide |
22m to 33m wide |
Design Speed |
110km/h |
110km/h |
Road surface |
Asphalt |
Chip seal |
Local Roads
A number of service roads will be constructed to maintain access to properties whose access has been directly affected by the new development.
Integrating the New Perth Bunbury Highway into the road network will have an impact on local traffic and may affect how some residents use existing roads to travel to and from their suburb.
The new highway will cross or affect a number of roads under the control of the local government authorities. In order to ensure that the new highway is both safe and efficient the number and location of side road connections needs to be carefully managed.
This will require some local roads adjacent to the new highway to be modified including:
- upgrading Paganoni Road
- upgrading the intersections of Paganoni Road and Mandurah Road (traffic signals)
- upgrading the intersection of Mandurah Road and Dampier Drive
- constructing a new roundabout at the intersection of Karnup Road and Baldivis Road
- closing a number of local roads where they cross the new highway – includes Serpentine Road, Stock Road, Sheoak Road, Fowler Road, Lakelands Road, Rogers Road, Beacham Road, Parkhills Lane, Caris Park Road, Daley Road, Hill Road, Newman Road, Doman Road and Coronation Road
Traffic signals will not be used on the highway, however, they will be installed at the on and off ramps of the five interchanges to control traffic movements through these major intersections.
Given the size and scale of the project, construction is being managed in three zones – bridges, northern earthworks and southern earthworks. Construction is being undertaken concurrently along the full length of the alignment to ensure project timeframes are met. The key elements of the construction program include bulk earthworks, drainage, pavements, bridges, landscaping and public art.
Click here to view photos of our on-site progress.
Interchanges
Safety Bay Road
- Diamond interchange providing access in all directions
- Provides direct access to Rockingham
- Requires approximately 644,000 tonnes of sand to construct
- The single two span bridge is approximately 67 metres long and 19.5 metres wide (road width)
View Alignment Map (PDF 355KB)
Karnup Road
- Diamond interchange providing access in all directions
- Provides direct access to Baldivis, Karnup, Warnbro, Port Kennedy and Hopeland
- Requires approximately 1 034 000 tonnes of sand to construct
- The single two span bridge is approximately 66 metres long and 16 metres wide (road width)
View Alignment Map (PDF 355KB)
Paganoni Road
- Diamond interchange providing access in all directions
- Provides direct access to Karnup, Secret Harbour, Golden Bay, Singleton and Madora
- Requires approximately 600 000 tonnes of sand to construct
- The single two span bridge is approximately 63 metres long and 13 metres wide (road width)
View Alignment Map (PDF 355KB)
Lakes Road
- Diamond interchange providing access in all directions
- Provides direct access to Mandurah, Madora, San Remo, Silver Sands, Lakelands, Stake Hill, Greenlands, Nambeelup, Barragup and North Dandalup
- Requires approximately 1 193 000 tonnes of sand to construct
- The single two span bridge is approximately 66 metres long and 24 metres wide (road width)
View Alignment Map (PDF 355KB)
Pinjarra Road
- Parclo interchange providing access in all directions
- Provides direct access to Mandurah, Greenfields, Barragup, North and South Yunderup, Ravenwood
- Requires approximately 1 000 000 tonnes of sand to construct
View Alignment Map (PDF 355KB)