South Western Highway
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| South Western Highway | |
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| Length | 406 km (252 mi) |
| Direction | Northwest-Southeast |
| From |  Albany Highway, Armadale, Perth |
| via | Serpentine, North Dandalup, Pinjarra, Waroona, Yarloop, Harvey, Brunswick Junction, Bunbury, Donnybrook, Bridgetown, Manjimup |
| To | South Coast Highway, Walpole, Western Australia |
| Allocation | Armadale - Bunbury Bunbury - South Coast Highway |
| Major junctions | Thomas Road, Pinjarra Road, Uduc Road, Coalfields Road, Robertson Drive, Brockman Highway, Muirs Highway, Vasse Highway
for full list see |
South Western Highway is a highway in the South West region of Western Australia connecting Perth's southeast with Walpole. It is a part of the National Highway 1 network for most of its length. It is about 406 kilometres (252 mi) long.
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[edit] Description
[edit] Perth to Bunbury
From Perth, the highway, signed as State Route 20, starts from the Albany Highway junction in Armadale, 28 km from Perth, and follows a north-south route 20–30 km inland from the coast, passing through several agricultural and timber towns that sprang up in the 1890s when the nearby railway came through, such as Pinjarra, Waroona, Yarloop and Harvey.
Just past Brunswick Junction, the highway heads southwest towards Western Australia's third-largest city, Bunbury. The typical scenery on this part of the highway includes small dairy farms and orchards, jarrah and marri remnant forests and pine plantations.
Until the 1980s, the Armadale-Bunbury section was part of National Highway 1, but following the upgrading of Old Coast Road and construction of the Mandurah bypass, Highway 1 now follows the coastal route via Kwinana Freeway and Old Coast Road to Bunbury passing through the resort town of Mandurah.
[edit] In Bunbury
The highway does not actually enter Bunbury - it stops at the industrial suburb of Picton, following Robertson Drive (Bunbury's ring road) for 1 km south before turning southeast past Bunbury Airport towards Boyanup. The highway actually used to follow what is now Boyanup-Picton Road from Picton via Dardanup, but changed to the present shorter route in the 1980s.
[edit] Bunbury to Walpole
From Bunbury, the highway goes through Boyanup and on to Donnybrook, the heart of WA's apple country. From then on the highway passes through thick forests featuring many native trees like jarrah, marri and karri. The region was settled much later than other parts of south western WA, under a soldier resettlement scheme in the 1920s. Typical scenery is farmland interspersed with forests and small timber towns.
The highway then goes through Bridgetown (where it meets the Brockman Highway from Augusta and Nannup), Manjimup and finally to Walpole. This part of the highway, especially from Manjimup, is sparsely populated and very thickly forested, with abundant wildlife and wildflowers as well as many old growth trees, especially the giant karri.
From Walpole, the Highway 1 continues as South Coast Highway to Albany.
[edit] Major towns
- Armadale
- Byford
- Pinjarra
- Waroona
- Yarloop
- Harvey
- Brunswick Junction
- Bunbury
- Boyanup
- Donnybrook
- Bridgetown
- Manjimup
- Walpole
[edit] Major intersections
[edit] Armadale to Picton
- Interchange, Armadale and Bedfordale
Armadale Road to Jandakot and Spearwood
Albany Highway to Perth via Gosnells, Cannington and Victoria Park- Albany Highway to Williams, Kojonup and Albany
(at Byford) Thomas Road to Kwinana and Rockingham
(at Mundijong)Watkins Road (Goes onto Mundijong Road) to Baldivis and Jarrahdale Road to Jarrahdale- (at North Dandalup)
- Del Park Road to Dwellingup
- Lakes Road to Mandurah
- (at Pinjarra):
- Pinjarra-Williams Road to Dwellingup and Boddington
- Pinjarra Road to Mandurah
- Old Bunbury Road to Old Coast Road Lake Clifton
- (at Harvey) Uduc Road to Old Coast Road Myalup
- (at Brunswick Jn) to Kemerton Industrial Park
Coalfields Road to Collie and Darkan- (at Picton) Boyanup-Picton Road to Dardanup
Robertson Drive to Bunbury and (via Bussell Highway) Busselton and Margaret River
[edit] Picton to Walpole
- (at Boyanup) to Stratham
- (at Donnybrook) Goodwood Road to Capel
- (at Bridgetown) Bridgetown Boyup Brook Road to Boyup Brook
- (at Bridgetown) Brockman Highway to Nannup and Augusta
(at Manjimup) Muirs Highway to Mount Barker- (15 km south of Manjimup) Vasse Highway to Pemberton
- (at Shannon) Middleton Road to Northcliffe
[edit] Speed Limit On Sections of the South Western Highway
[edit] From 12km east of Walpole to Armadale
- 12 km of Walpole to Middleton Road 90 km/h
- Middleton Road to Manjimup 110 km/h
- Manjimup Town Site 50 km/h
- Manjimup to Bridgetown 110 km/h
- Bridgetown Site 50 km/h
- Bridgetown to Ballingup 110 km/h
- Ballingup Town Site 50 km/h
- Ballingup to Donnybrook 100 km/h (also 90 km/h for vehicles over 22.4 tonnes)
- Donnybrook Town Site 50 km/h
- Donnybrook to Boyanup 110 km/h
- Boyanup Town Site 50 km/h
- Boyanup to Bunbury Ring Road 110 km/h
- Bunbury Ring Road 90 km/h
- Bunbury Ring Road to Vittoria Road 60 km/h
- Vittoria Road to Picton Railway Yard Crossing 70 km/h
- Picton Railway yard to around Waterloo 100 km/h
- Around Waterloo 90 km/h
- Waterloo to Coalfields Highway 100 km/h
- Coalfields Highway to Brunswick 110 km/h
- Brunswick Junction Town Site 50 km/h
- Brunswick Junction to Benger 110 km/h
- Benger Site 90 km/h
- Benger to Wokalup 110 km/h
- Wokalup Town Site 50 km/h
- Wokalup to Harvey 110 km/h
- Harvey Town Site 60 km/h
- Harvey to Yarloop 110 km/h
- Yarloop Town Site 50 km/h
- Yarloop to Waroona 110 km/h
- Waroona Town Site 50 km/h
- Waroona to Coolup 110 km/h
- Coolup Town Site 90 km/h
- Coolup to 1 km South of Greenlands Road 110 km/h
- 1 km South of Greenlands Road to Greenlands Road 90 km/h
- Greenlands Road to Mackay Street 70 km/h
- Mackay Street to Pinjarra - Williams Road 50 km/h
- Pinjarra - Williams Road to 1 km South of Alcoa Road 70 km/h
- 1 km South of Alcoa Road to Alcoa Road 90 km/h
- Alcoa Road to North Dandalup 110 km/h
- North Dandalup Town Site 50 km/h
- North Dandalup to Serpentine 110 km/h
- Serpentine Town Site 50 km/h
- Serpentine to Jarrahdale Road 110 km/h
- Jarrahdale Road to Pruden Road 90 km/h
- Pruden Road to Cardup 110 km/h
- Cardup to Caltex Byford 90 km/h
- Caltex Byford to Larsen Road 60 km/h
- Larsen Road to Darling Downs 70 km/h
- Darling Downs to Moore Street 90 km/h
- Moore Street to Hobbs Drive 70 km/h
- Hobbs Drive to Armadale Road/Albany Highway Intersection 60 km/h
[edit] See also
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