Christchurch Southern Motorway

Christchurch Southern Motorway
Route information
Maintained by NZ Transport Agency
Length:	7.5 km (4.7 mi)
Existed:	4 May 1981 – present
Major junctions
East end:	Brougham Street at Addington
To:	Halswell Junction Road at Hornby
Location
Major cities:	Addington, Wigram, Hornby

Highway system
New Zealand state highways Motorways and expressways List Unused

The Christchurch Southern Motorway is a motorway to the south-west of Christchurch, New Zealand linking the inner-city suburb of Addington, New Zealand to the southern Christchurch suburb of Hornby, New Zealand. The motorway is approximately 7.5 km long and is four-lane divided. The motorway forms part of State Highway 76.

Route

The Christchurch Southern Motorway begins in the suburb of Addington at the western end of Brougham Street (at the Collins Street intersection), just south of the Christchurch CBD. It heads 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 the motorway heads through Wigram, passing under Aidanfield Drive and Awatea Road. The motorway ends at Halswell Junction Road to the south of Hornby.

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. 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.^[1] Further motorway work was subsequently deferred due to slowing population and economic growth and a lack of funding.^[2]

Duplication of the Lincoln Road overbridge on the Christchurch Southern Motorway, December 2011. The existing 1981 two-lane bridge is to the left.

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.^[3] 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.^[3] The duplication and extension were officially opened on 14 December 2012.^[4] 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.^[3]

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.

Future

Christchurch Southern Motorway Stage 2 - A future 7.5 km extension of the motorway, designated as Stage 2, will extend the motorway south-west from the Springs Road junction to meet State Highway 1 at Robinsons Road, north of Rolleston. The proposed extension would include a half interchange at Halswell Junction Road to replace the Stage 1 roundabout, a full diamond interchange at Shands Road, and a grade separated 'Y-junction' interchange at Main South Road (SH 1).^[5] Consent was granted by the Environmental Protection Agency in November 2013 and a contract award in August 2016 for the $195 million motorway extension. Construction commenced in October 2016 and is expected to take three and a half years to complete.^[6]
Main South Road Four-Laning - To give traffic from the motorway a clear run-out, Main South Road would be widened to four lanes divided as far as Weedons Road, where a folded diamond interchange will be built. Main South Road will merge back to a two-lane undivided road at the end of the existing passing lanes south of Weedons Road.^[7]

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 north (Curletts Road) – Upper Riccarton, Airport, West Coast SH 75 south (Curletts Road) – Halswell, Akaroa
	Hornby South	15	SH 76 north (Hallswell Junction Road) – Rolleston, Timaru Halswell Junction Road (south) – Halswell	Christchurch Southern Motorway ends Three way roundabout
	Hornby South	15		Eastbound exit and westbound entrance (stage 2)
Selwyn District	Prebbleton		Shands Road – Hornby, Springston, Lincoln
	Templeton		SH 1 north (Main South Road) – Hornby, Airport, Belfast	Westbound entrance and eastbound exit
	Templeton		Berketts Road	Southbound exit and entrance
	Rolleston		Weedons Road – Rolleston (east), West Melton
	Rolleston		SH 1 south (Main South Road) – Timaru	Christchurch Southern Motorway ends
1.000 mi = 1.609 km; 1.000 km = 0.621 mi Unopened

References

↑ "Theme II : Infrastructure : Chapter 3 : Transport" (PDF). Resources.ccc.govt.nz. Retrieved 2015-08-18.
↑ Christchurch City Centre, 40 years of Change, Traffic, Planning 1959-1999 (2000)
1 2 3 "Christchurch Southern Motorway stage 1 information flyer" (PDF). New Zealand Transport Agency. February 2010. Retrieved 14 July 2011.
↑ "Media releases | NZ Transport Agency". Nzta.govt.nz. Retrieved 2015-08-18.
↑ "Christchurch Southern Corridor; NZ Transport Agency". Nzta.govt.nz. August 2015.
↑ "$435 million investment in Christchurch’s transport network". Nzta.govt.nz. 10 August 2016. Retrieved 10 August 2016.
↑ "Key Features : Map" (PDF). Nzta.govt.nz. Retrieved 2015-08-18.

External links

Christchurch Southern Corridor (NZ Transport Agency)

List of motorways and expressways in New Zealand
Auckland	Northern Motorway Northwestern Motorway Southern Motorway Southwestern Motorway Upper Harbour Motorway
Wellington	Johnsonville–Porirua Motorway Wellington Urban Motorway Hutt Expressway Kapiti Expressway
Rest of North Island	Waikato Expressway Takitimu Drive Tauranga Eastern Link Hawke's Bay Expressway
South Island	Christchurch Northern Motorway Christchurch Southern Motorway Christchurch-Lyttelton Motorway Dunedin Southern Motorway
Past motorways/expressways	New Plymouth Southern Motorway Wanganui Metropolitan Motorway Dunedin Northern Motorway
Future motorways/expressways	Puhoi to Wellsford Motorway Penlink Second Harbour Crossing Transmission Gully Motorway Western Belfast Bypass
Major infrastructure	Upper Harbour Bridge Northern Busway, Auckland Auckland Harbour Bridge Victoria Park Tunnel and Viaduct Central Motorway Junction Newmarket Viaduct Mangere Bridge Tauranga Harbour Bridge Ngauranga Interchange Terrace Motorway Tunnel Lyttelton Road Tunnel Waterview Tunnel

New Zealand state highways
List of New Zealand state highways List of unused highways in New Zealand List of motorways and expressways in New Zealand
National	SH 1 (incl. SH 1B, SH 1D) SH 2 (incl. SH 2B) 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 (incl. SH 50A) SH 53 SH 54 SH 56 SH 57 SH 58
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 2A SH 15 SH 15A SH 17 SH 36 SH 40 SH 47A SH 49A 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 Southern Scenic Route

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