page_title: Christchurch Southern Motorway
section_title: History
hierarchical_section_title: Christchurch Southern Motorway / History
caption_attribution_description: English: View of construction of the Lincoln Road bridge duplication on the Christchurch Southern Motorway. The 1981 two-lane bridge is to the left.
context_page_description: The Christchurch Southern Motorway is a motorway to the south-west of Christchurch, New Zealand linking the inner-city suburb of Addington to the southern suburb of Hornby. The motorway, which is approximately 7.5 km long and is four-lane divided, forms part of State Highway 76.
context_section_description: Plans for a motorway network in Christchurch were first revealed in 1962, with the release of the Christchurch Master Transportation Plan. The Christchurch Southern Motorway, which formed a critical component of this plan, was proposed to run from Templeton to an interchange with the Christchurch Northern Motorway at Waltham, just south of the CBD. These plans were scaled back in 1975 so that the Southern Motorway would terminate into the western end of Brougham Street. The first section of the motorway, a short two-lane arterial, opened in 1981, linking Brougham Street with Curletts Road. Further motorway work was subsequently deferred due to slowing population and economic growth and a lack of funding.
  Beginning in March 2010, the section between the Lincoln Road overbridge and Curletts Road was duplicated, and a new flyover was built linking the motorway directly to Brougham Street, creating a grade-separated junction with Barrington Street. The motorway was also extended from Curletts Road, where a new full interchange was built, to a new terminating roundabout at Halswell Junction Road, near the (upgraded) Springs Rd roundabout. A cycleway was built along the length of the motorway on both sides. The duplication and extension were officially opened on 14 December 2012. North of Springs Road, Halswell Junction Road was upgraded to form a two-lane undivided link from the motorway to State Highway 1 at Islington. This includes replacing the roundabout at Shands Road with traffic lights.
  Despite being affected by the 2010 and 2011 Canterbury earthquakes while under construction, the earthquakes caused no direct damage, although the alignment had to be resurveyed after each earthquake.
caption: Duplication of the Lincoln Road overbridge on the Christchurch Southern Motorway, December 2011. The existing 1981 two-lane bridge is to the left.
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