South Western Highway
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South Western Highway Western Australia |
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| View north of Harvey | |
| Type | Highway |
| Length | 406 km (252 mi) |
| Route number(s) |
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| Northwest end |
 Albany Highway (State Route 30), Armadale, Perth
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| Southeast end |
 South Coast Highway (National Route 1), Walpole
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| Major settlements | Serpentine, North Dandalup, Pinjarra, Waroona, Yarloop, Harvey, Brunswick Junction, Bunbury, Donnybrook, Bridgetown, Manjimup |
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Highways in Australia National Highway • Freeways in Australia Highways in Western Australia |
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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 Highway 1 network for most of its length. It is about 406 kilometres (252 mi) long.
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.
In January 2016, the Samson Brook bridge, one of the highway bridges near Waroona, was damaged by a bushfire.
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.
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Wikipedia