The Augusta Highway is the part of Australia's ring route (Highway 1) located in South Australia between Port Wakefield and Port Augusta. It was named Augusta Highway in 2011, and was formerly known simply as Highway One and also as the Princes Highway, despite not being continuous to the Princes Highway in the southeast of the state.
Sign at the northern end of the Highway
|Length||211 km (131 mi)|
|Route number(s)||A1 (2017-present)|
| National Highway A1|
|South end|| Port Wakefield Road|
Port Wakefield, South Australia
|North end|| Eyre Highway|
Port Augusta, South Australia
|Major settlements||Snowtown, Crystal Brook, Port Pirie, Port Germein|
Following the 2018 South Australian state election, upgrades were announced for both ends of the Augusta Highway. At the northern end, the Joy Baluch AM Bridge across Spencer Gulf at Port Augusta is to be duplicated to improve safety for both local and highway traffic. At the southern end, the intersection with the Copper Coast Highway is to be grade-separated, along with duplicating Port Wakefield Highway through Port Wakefield. The contracts for detailed design and construction of both projects were let in March 2020 to the Port Wakefield to Port Augusta Alliance, a consortium of CPB Contractors, Aurecon and GHD Group. Both are expected to be completed in 2022.
- Google (17 September 2014). "Driving the Augusta Highway" (Map). Google Maps. Google. Retrieved 17 September 2014.
- "Highway One gets a change of name". Plains Producer. 19 August 2011. Retrieved 2 September 2014.
- "Port Wakefield Overpass and Highway Duplication". Department of Planning, Transport and Infrastructure. Retrieved 9 May 2020.
- McCormack, Michael (1 March 2020). "PORT WAKEFIELD AND JOY BALUCH UPGRADES ARE SIGNED, SEALED AND SOON TO BE DELIVERED" (PDF) (Press release). Retrieved 9 May 2020 – via Department of Planning, Transport and Infrastructure.
- A.J.Miazzo (16 December 2013). "Naming of State Rural Roads - Mid North" (PDF). Government of South Australia. Rack Plan 869. Archived from the original (PDF) on 4 September 2014. Retrieved 17 September 2014.
Media related to Augusta Highway at Wikimedia Commons