Statistics:
- Length: 140 km (Forrest Hwy: 40 km) (West Pinjarra to Lake Clifton: 30 km)
- Northern
Terminus: Burns Beach Road (SR87) at Currambine in Perth's
northern suburbs
- Southern
Terminus: Forrest Highway (former Old Coast Road and Perth-Bunbury Highway) (NR1) at Lake Clifton
- Suburbs, Towns & Localities along route:Lake Clifton and West Coolup
Route Numbering:
- Current:

General Information:
The Forrest Highway, along with the Kwinana and Mitchell Freeways, are without a doubt one of the most important road systems in the Perth metropolitan area, and the southwestern part of the state.
Running in a north-south direction, the freeways link the north and southern suburbs of Perth together plus the southern city of Mandurah and the state's southwest, but also act as a coastal link between the northern and southern parts of the state. Built in stages from the late 1950s the route has seen enormous changes / extensions and is continuously undergoing expansion to this day.
Unique to the freeway sections is the passenger railway line down the median of the road corridor, which in parts also travels alongside other modes of public transport such as buses.
The route varies from 2 to 3 lanes wide in each direction, with provision in most of the newer sections to have another 1 to 2 lanes to be added when required. Exits along the route are somewhat close together, this is probably due to the large number of suburbs state route 2 services, south of Baldivis, the spacings are longer.
When first planned, the Mitchell Fwy was called the Yanchep Highway, as its envisaged that eventually the route will connect to the town.
History (Forrest Hwy):
- December 2006: Works commence on the Forrest Highway. 1
- 20 September 2009: Opening of Forrest Highway from Lake Clifton to South Yunderup. 2
Forrest Highway (NR1 section):
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Construction Sign:
Construction signage at Lake Clifton on Forrest Hwy (then Old Coast Rd) (NR1). April 2008.
Image © Paul Rands
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Advance Directional Sign:
AD sign, southbound at Lake Clifton, approaching a rest area built on the old highway alignment and also the junction with Forrest Hwy (NR1 / SR2), August 2009.
Image © Paul Rands
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Construction Sign & Contraflow:
Construction signage and contraflow at Lake Clifton on Forrest Hwy (then Old Coast Rd) (NR1). April 2009.
Image © Paul Rands
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Intersection Directional Sign:
ID sign at Lake Clifton, at the junction with Forrest Hwy (NR1 / SR2), August 2009.
Image © Paul Rands
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Old Single Carriageway:
Section of old single carriageway at Lake Clifton, with contraflow from the Forrest Hwy works. April 2009.
Image © Paul Rands
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Advance Directional Sign:
AD sign at Lake Clifton approaching Peppermint Grove Rd, August 2009.
Image © Paul Rands
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Old Single Carriageway:
Section of old single carriageway at Lake Clifton, with contraflow from the Forrest Hwy works. April 2009. Note new southbound carriageway to the right of shot.
Image © Paul Rands
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Peppermint Grove Road Intersection:
Southbound at Lake Clifton at Peppermint Grove Rd junction, August 2009.
Image © Paul Rands
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Traffic Switch:
Traffic switch over to new carriageway whilst the original route is being upgraded. Lake Clifton, April 2009.
Image © Paul Rands
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Advance Directional Sign:
AD sign at Lake Clifton approaching Peppermint Grove Rd, April 2009.
Image © Paul Rands
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Peppermint Grove Road Intersection:
Northbound at Lake Clifton on the future southbound carriageway at Peppermint Grove Rd junction, April 2009.
Image © Paul Rands
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Southbound Carriageway:
Driving north on the southbound carriageway at Lake Clifton, between Peppermint Grove Rd and Old Coast Rd (NR1). April 2009.
Image © Paul Rands
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Northbound Carriageway Reconstruction:
Works on upgrading the northbound carriageway at Lake Clifton, April 2009.
Image © Paul Rands
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Approaching Old Coast Road Intersection:
Northbound on the southbound carriageway at Lake Clifton, approaching Old Coast Road (NR1), April 2009.
Image © Paul Rands
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Approaching Old Coast Road Intersection:
Northbound on the southbound carriageway at Lake Clifton, approaching Old Coast Road (NR1), April 2009.
Image © Paul Rands
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Old Coast Road Intersection:
Northbound on the southbound carriageway at Lake Clifton, at the junction with Old Coast Road (NR1), April 2009.
Image © Paul Rands
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Old coast Road:
Northbound on Old Coast Rd (NR1) at Lake Clifton, with new traffic arrangements, April 2009.
Image © Paul Rands
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Speed Limit Change Sign:
Speed limit change sign indicating the drop in speed limit from 110 km/h to 100 km/h at Lake Clifton, and also the end of the connection works to Forrest Highway. April 2009.
Image © Paul Rands
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Construction Sign & Contraflow:
Construction signage and contraflow at Lake Clifton on Forrest Hwy (then Old Coast Rd) (NR1). August 2009.
Image © Paul Rands
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Advance Directional Sign:
AD sign at Lake Clifton approaching Peppermint Grove Rd, August 2009.
Image © Paul Rands
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Peppermint Grove Road Intersection:
Northbound at Lake Clifton at Peppermint Grove Rd junction, August 2009.
Image © Paul Rands
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Intersection Directional Sign:
ID sign facing Peppermint Grove Road at Lake Clifton, August 2009.
Image © Paul Rands
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NR1 Trailblazers:
National Route 1 trailblazers and car U-turn bay at Lake Clifton, August 2009.
Image © Paul Rands
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Distance Sign:
Dual route RD sign at Lake Clifton, August 2009.
Image © Paul Rands
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Advance Directional Sign:
AD sign at Lake Clifton, approaching Old Coast Rd (NR1), August 2009.
Image © Paul Rands
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Old Coast Road Intersection:
Northbound at the Old Coast Rd (NR1) junction at Lake Clifton, August 2009.
Image © Paul Rands
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Dorsett Road:
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Construction Sign:
Works sign at Lake Clifton, travelling on Dorsett Road, September 2008.
Image © Paul Rands |
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Old Bunbury Rd / Dorsett Road / Forrest Highway Construction Site:
Intersection of Forrest Hwy, Old Bunbury Rd and Dorsett Rd under construction, September 2008.
Image © Paul Rands |
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Old Bunbury Rd / Dorsett Road / Forrest Highway Construction Site:
Intersection of Forrest Hwy, Old Bunbury Rd and Dorsett Rd under construction, September 2008. Image © Paul Rands |
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Works Depot:
Forrest Hwy southern works depot, Dorsett Rd at Lake Clifton, April 2009.
Image © Paul Rands |
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Dorsett Road / Forrest Highway Construction Site:
Intersection of Forrest Hwy and Dorsett Rd under construction, September 2008. Image © Paul Rands |
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Dorsett Road / Forrest Highway Construction Site:
Intersection of Forrest Hwy and Dorsett Rd under construction, September 2008. Looking northeast. Image © Paul Rands |
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Dorsett Road / Forrest Highway Construction Site:
Intersection of Forrest Hwy and Dorsett Rd under construction, September 2008. Image © Paul Rands |
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Dorsett Road / Forrest Highway Construction Site:
Intersection of Forrest Hwy and Dorsett Rd under construction, September 2008. Image © Paul Rands |
Old Bunbury Road:
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Construction Sign:
Sign detailing the works for the Perth-Bunbury Highway. Old Bunbury Road at Lake Clifton, September 2008.
Image © Paul Rands |
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Temporary Traffic Signals:
Old Bunbury Rd at the Forrest Hwy works zone. The traffic signals are designed to control flow between regular traffic and construction machinery. September 2008.
Image © Paul Rands |
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Approaching Dorsett Road:
Corner of Old Bunbury Road and Dorsett Road at Lake Clifton, April 2009.
Image © Paul Rands |
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Forrest Hwy Construction:
Looking at bridge work for Forrest Hwy. Looking northeast from Old Bunbury Rd. April 2009.
Image © Paul Rands |
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Northbound At Lake Clifton:
Forrest Hwy northbound from Old Bunbury Rd, April 2009.
Image © Paul Rands |
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Southbound At Lake Clifton:
Forrest Hwy southbound from Old Bunbury Rd, April 2009. Image © Paul Rands |
1 Southern Gateway Alliance Fact Sheet - Project Facts 01
2 Southern Gateway Alliance Media Release - Kwinana Freeway Extension and Forrest Highway Opening Celebration
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