Gawler Bypass Road South Australia | |
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General information | |
Type | Freeway |
Length | 7 km (4.3 mi) |
Opened | 1980s |
Route number(s) |
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Former route number |
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Major junctions | |
North end | ![]() |
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South end | ![]() |
Location(s) | |
Major suburbs | Evanston, Gawler West, Willaston |
Highway system | |
Gawler Bypass Road is a major north-south route in the outer northern suburbs of the city of Adelaide, South Australia. It had the national designation of National Highway A20 north of the Northern Expressway, while south of this intersection it had the state designation of A52. [1] [ full citation needed ] From late 2016, the entire length was designated A20, corresponding to the Northern Expressway being designated M2 (instead of M20). [2]
Adelaide is the capital city of the state of South Australia, and the fifth-most populous city of Australia. In June 2017, Adelaide had an estimated resident population of 1,333,927. Adelaide is home to more than 75 percent of the South Australian population, making it the most centralised population of any state in Australia.
South Australia is a state in the southern central part of Australia. It covers some of the most arid parts of the country. With a total land area of 983,482 square kilometres (379,725 sq mi), it is the fourth-largest of Australia's states and territories by area, and fifth largest by population. It has a total of 1.7 million people, and its population is the second most highly centralised in Australia, after Western Australia, with more than 77 percent of South Australians living in the capital, Adelaide, or its environs. Other population centres in the state are relatively small; Mount Gambier, the second largest centre, has a population of 28,684.
The Northern Expressway, also known as the Fatchen Northern Expressway, is a 23 kilometre long controlled-access highway in Adelaide, South Australia. It travels from Gawler to Port Wakefield Road. The road has been built to four-lane standard and provides a faster route between Adelaide and Gawler, whilst reducing the amount of traffic on Main North Road, which passes through the heart of the northern suburbs and is interspersed with frequent traffic lights. It also allows freight vehicles to avoid residential areas and go straight to Port Wakefield Road and onto the Port River Expressway (A9) to reach the harbour at Port Adelaide.
It is a freeway standard route connecting Main North Road to the Sturt Highway, bypassing Gawler. Major exits include Angle Vale Road, Two Wells Road, Northern Expressway, Mallala Road and Horrocks Highway (formerly Main North Road). Each of these exits also have minor roads leading into Gawler.
Main North Road is the major north-south arterial route through the suburbs north of the Adelaide City Centre in the city of Adelaide, South Australia. It continues north through the settled areas of South Australia and is a total of 307 kilometres (191 mi) long, from North Adelaide to 21 kilometres (13 mi) out of Port Augusta. It follows the route established in the early years of the colony by explorer John Horrocks and was a major route for farmers and graziers to reach the capital, passing through rich farmland and the Clare Valley wine region. In 2011, the section of road between Gawler to Wilmington was renamed Horrocks Highway.
The Sturt Highway is an Australian national highway in New South Wales, Victoria, and South Australia. The Sturt Highway is an important road link for the transport of passengers and freight between Sydney and Adelaide and the regions situated adjacent to the route.
Gawler is the oldest country town on the Australian mainland in the state of South Australia, and is named after the second Governor of the colony of South Australia, George Gawler. It is about 40–44 km (25–27 mi) north of the centre of the state capital, Adelaide, and is close to the major wine producing district of the Barossa Valley. Topographically, Gawler lies at the confluence of two tributaries of the Gawler River, the North and South Para rivers, where they emerge from a range of low hills.
The route was built in 1963 in an attempt to redirect traffic on the national highway out of Gawler town centre and has been upgraded and realigned several times since then.
The first Gawler bypass was planned in the 1950s [3] and built as a single two-lane carriageway around the town in 1963 with at-grade intersections and carried 3000 vehicles per day. [4] It ended at a tee-junction at the southern end, and followed an alignment that included what is now the southbound on-ramp and Brereton Road, Jack Cooper Drive over the Winckel Bridge, [5] and Paternoster Drive to the railway bridge.
The next advance developed the road to dual carriageway with grade-separated intersections at the southern end in the 1980s and new bridges over the Gawler River. When it was approved, the 1963 bypass was carrying 7000 vehicles per day, and 300 collisions had been recorded between 1977 and 1982. [4]
The Gawler River is a river located in the Adelaide Plains district of the Mid North region in the Australian state of South Australia.
Improvements to the Sturt Highway have included upgrades to the northern end of the Gawler Bypass to facilitate smooth flow between them, completed in 2010. [6]
The construction of the Northern Expressway in 2010 resulted in realignment of the northbound carriageway as part of creating a grade-separated intersection with smooth flow between the northern section of the Gawler bypass and both the Northern Expressway and the southern part of the Gawler bypass. As both roads lead broadly south, there is no provision to turn directly from one to the other.
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