Christchurch Southern Motorway

Christchurch Southern Motorway
Christchurch Southern Motorway
Route information
Length	20 km (12 mi)
Existed	4 May 1981–present
Major junctions
East end	Brougham Street at Addington
West end	Weedons Ross Road at Rolleston
Location
Country	New Zealand
Major cities	Christchurch
Highway system
	New Zealand state highways; Motorways and expressways; List;

The Christchurch Southern Motorway is the main southern route into and out of Christchurch, New Zealand. The motorway forms part of State Highway 1 (SH 1) and State Highway 76 (SH 76).

The motorway, which heads in a generally south-west direction, is approximately 20 km (12 mi) in length. It links the inner-city suburb of Addington, where it starts at the western end of Brougham Street, to just north-east of the satellite centre of Rolleston in the Selwyn District.

Route

The Christchurch Southern Motorway begins in the suburb of Addington at the western end of Brougham Street (at the Collins Street intersection), which is a busy multi-lane road linking to the port at Lyttelton, just south of the Christchurch Central Business District (CBD) on SH 76.

The motorway continues south-west, crossing Barrington Street (where there is an interchange) and Lincoln Road and passing to the south of Middleton. There is an interchange at Curletts Road, then skirts to the south of Wigram, passing under Aidanfield Drive and Awatea Road.

After the Halswell Junction Road interchange it runs to the south of Hornby and Isllington, and north of Prebbleton, to an interchange at Shands Road. From there, it continues south-west and joins Main South Road/SH 1 south of Templeton, and continues to an interchange at Weedons Road, ending just north of Rolleston. SH 1 continues south towards Ashburton as a regular two-lane highway.

History

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. The first section of the motorway, a short two-lane arterial, opened in 1981, linking Brougham Street with Curletts Road.^[1] Further motorway work was subsequently deferred due to a lack of funding.^[2]

In 2012 a project was completed duplicating the existing motorway section, including a new flyover to link the motorway directly to Brougham Street.^[3] At the same time, the motorway was extended from Curletts Road, where a new full interchange was built, to a new terminating roundabout at Halswell Junction Road, a total length of approximately 7.5 km from Brougham Street. A cycleway was built along the length of the motorway on both sides.^[3] North of Springs Road, Halswell Junction Road was upgraded to form a two-lane undivided link from the motorway to SH 1 at Templeton.

In 2020, the motorway was extended approximately 12.5 km to the south-west as far as Rolleston. A 7.5 km extension of the motorway was constructed to Robinsons Road south of Templeton where it joined SH 1, which was upgraded as far as Rolleston. The new extension includes a half interchange at Halswell Junction Road to replace the roundabout, a full diamond interchange at Shands Road, and a grade separated 'Y-junction' interchange south-west of Isllington where the extension joins the existing SH 1.^[4]

The existing SH 1 along Main South Road was duplicated and upgraded to motorway standard as far as Weedons Road, where a folded diamond interchange was built. This included removing direct access to the highway from private property through provision of two new local access roads.^[5]

Future projects

Two projects have been funded adjacent to each end of the motorway as part of the New Zealand Upgrade Programme. At the northern end, $40 million will be spent on SH 76 (Brougham Street) to prioritise north-south public transport routes, create safer, dedicated walking and cycling access, and ensuring better east-west traffic flow and capacity. At the southern end, $60 million will be spent on a new two-lane overbridge to cross SH 1 from Rolleston Drive to Hoskyns Road, and to upgrade four intersections along SH 1 between Burnham and Rolleston to better manage the forecast future growth in traffic volumes along this section of the highway.^[6] These projects are scheduled to begin in 2022 for completion in 2025/26. Details of the interventions are not yet available.

Exit list

Territorial authority	Location	km	Destination	Notes
Christchurch City	Addington	8	SH 76 east (Brougham Street) – City Centre, Lyttelton	Christchurch Southern Motorway begins
	Addington	8	Barrington Street – Addington, Barrington, Cashmere
	Middleton	11	SH 73 (Curletts Road) – Upper Riccarton, Airport, West Coast SH 75 (Curletts Road) – Halswell, Akaroa
	Hornby South	15	Halswell Junction Road	Eastbound entrance and westbound exit
Selwyn District	Prebbleton		Shands Road – Hornby, Airport
	Templeton		SH 1 north (Main South Road) – Templeton, Picton	Westbound entrance and eastbound exit
	Templeton		Berketts Road	Southbound exit and entrance
	Rolleston		Weedons Road – Rolleston, West Melton, Lincoln
	Rolleston		SH 1 south (Main South Road) – Timaru	Christchurch Southern Motorway ends
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

References

^ "Theme II : Infrastructure : Chapter 3 : Transport" (PDF). Resources.ccc.govt.nz. Archived from the original (PDF) on 3 March 2016. Retrieved 18 August 2015.
^ Christchurch City Centre, 40 years of Change, Traffic, Planning 1959–1999 (2000)
^ ^a ^b "Christchurch Southern Motorway stage 1 information flyer" (PDF). New Zealand Transport Agency. February 2010. Archived from the original (PDF) on 12 June 2012. Retrieved 14 July 2011.
^ "Christchurch Southern Corridor; NZ Transport Agency". Nzta.govt.nz. August 2015.
^ "Key Features : Map" (PDF). Nzta.govt.nz. Retrieved 18 August 2015.
^ "Canterbury package | Waka Kotahi NZ Transport Agency".

External links

Christchurch Southern Corridor (NZ Transport Agency)

[1] "Theme II : Infrastructure : Chapter 3 : Transport" (PDF). Resources.ccc.govt.nz. Archived from the original (PDF) on 3 March 2016. Retrieved 18 August 2015.

[2] Christchurch City Centre, 40 years of Change, Traffic, Planning 1959–1999 (2000)

[CSM1info-3] "Christchurch Southern Motorway stage 1 information flyer" (PDF). New Zealand Transport Agency. February 2010. Archived from the original (PDF) on 12 June 2012. Retrieved 14 July 2011.

[4] "Christchurch Southern Corridor; NZ Transport Agency". Nzta.govt.nz. August 2015.

[5] "Key Features : Map" (PDF). Nzta.govt.nz. Retrieved 18 August 2015.

[6] "Canterbury package | Waka Kotahi NZ Transport Agency".

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v t e New Zealand state highways
List of New Zealand state highways List of motorways and expressways in New Zealand
National	SH 1 (incl. SH 1B, SH 1C) SH 2 SH 3 (incl. SH 3A) SH 4 SH 5 SH 6 (incl. SH 6A) SH 7 (incl. SH 7A) SH 8 (incl. SH 8A, SH 8B)
North Island	SH 10 SH 11 SH 12 SH 14 SH 15 SH 16 SH 18 SH 20 (incl. SH 20A, SH 20B) SH 21 SH 22 SH 23 SH 24 SH 25 (incl. SH 25A) SH 26 SH 27 SH 28 SH 29 (incl. SH 29A) SH 30 (incl. SH 30A) SH 31 SH 32 SH 33 SH 34 SH 35 SH 36 SH 37 SH 38 SH 39 SH 41 SH 43 SH 44 SH 45 SH 46 SH 47 SH 48 SH 49 SH 50 SH 51 SH 53 SH 54 SH 56 SH 57 SH 58 SH 59
South Island	SH 60 SH 62 SH 63 SH 65 SH 67 (incl. SH 67A) SH 69 SH 71 SH 73 SH 74 (incl. SH 74A) SH 75 SH 76 SH 77 SH 78 SH 79 SH 80 SH 82 SH 83 SH 84 SH 85 SH 86 SH 87 SH 88 SH 90 SH 93 SH 94 SH 95 SH 96 SH 97 SH 98 SH 99
Former state highways	SH 1A SH 1F SH 2A SH 2B SH 15 SH 15A SH 17 SH 36 SH 40 SH 47A SH 49A SH 50A SH 52 SH 57A SH 61 SH 70 SH 72 SH 73A SH 89 SH 91 SH 92
Touring routes	Twin Coast Discovery Highway Thermal Explorer Highway Pacific Coast Highway Classic New Zealand Wine Trail Alpine Pacific Triangle Great Alpine Highway Foothills Scenic Route Inland Scenic Route Central Otago Touring Route Southern Scenic Route