New Arterial Road - West Kaiapoi

A new arterial road is to be constructed in west Kaiapoi to cater for ongoing development of land around the western side of Kaiapoi and will provide a key link to West Rangiora and Southbrook.

About the Project

A new arterial road is to be constructed in west Kaiapoi to cater for ongoing development of land around the western side of Kaiapoi and will provide a key link to West Rangiora and Southbrook. 

The road will extend from the Ohoka Road off-ramp and will curve around onto Butchers Road before joining back onto Island Road near Mill Road. The purpose of the road is to direct the through traffic away from the new residential area of Silverstream. The road will address safety issues at the intersection at Ohoka Road/Island Road and Cosgrove Road. Improvements will be made at intersections along the new arterial road. The new road will be two lane (one in each direction) and will involve the construction of two new bridges along the alignment.

In the future Island Road between Mill Road and Adderley Terrace will be closed to through traffic and the New Arterial Road will form the main link through to Kaiapoi. While Adderley Terrace will still provide an alternate route through to Kaiapoi, traffic will only be able to use this approaching from the south east, as Island Road will be closed between Adderley Terrace and Mill Road later this year. Once that happens, access to Adderley Terrace from the north will no longer be available. Refer to the map to view the future road layout.

A tender has been awarded to HEB Construction Ltd for the physical works. Work began on site in January 2017. Hours of work are 7.30 am to 6 pm, Monday to Saturday. Some night work will be undertaken to help reduce the impact on road users. Residents will be notified in advance of night work being undertaken.

Traffic Impacts

  • Access to properties will be maintained during the work
  • If any access restrictions are required we will notify you in advance
  • Temporary traffic management will be in place during the work
  • Some aspects of the work may be undertaken as night work to reduce the impact to traffic. Advance notification will be provided.

Project Updates

Project Update as at 26 May 2017

Work completed

HEB Construction are continuing to make very good progress on the New Arterial Road.

The bridging crew arrived on site on Tuesday 9 May and piling has been underway since. There are 14 piles to install at each bridge (7 per abutment). Work started on the bridge over the Silverstream (Kaiapoi River) first and was completed on Monday 22 May.

To date the piling has gone as anticipated, with the exception of three piles which have needed to be driven extra depth to ensure that they meet the required bearing capacity. The crane has subsequently moved and is now installing the piles for the eastern abutment of the new Ohoka Bridge.

The pavement on Butchers Road is nearing completion between the Historic Footbridge / Ford and Hayson Drive. Final rolling and surface preparation is now being carried out. Hayson Drive has been asphalted out to the edge of the New Arterial Road.

At Island Road the new twin 750mm diameter stormwater pipes have been installed along the edge of Island Road and the drain backfilled ready for the road construction over top.  The widening has been started at the Mill Road intersection and work has begun on the installation of a new 900mm diameter stormwater pipe which will extend across Mill Road and out to the Ohoka River.

Bridge piles over Silverstream

Piles for the new bridge over the Silverstream

New road alignment

New alignment along Butchers Road (looking north)

Aerial view of new arterial road

Preparing the foundations for the new Ohoka Stream Bridge

Upcoming work

Over the next fortnight work will continue at the bridges. The remaining piles will be driven for the new Ohoka Bridge and reinforcing will be placed ready for pouring the abutments at the Silverstream Bridge (Kaiapoi River). The hollowcore beams for the new bridges are being pre-cast off site and will be trucked to site at a later date.

The preparation of the section of the New Arterial Road between the Historic Footbridge / Ford and Hayson Drive is to be chip sealed late next week (weather permitting).

Widening work will continue at the Island Road / Ohoka Road intersection and the twin 750mm diameter stormwater pipes will be extended across Island Road to join into the roadside drain. Two lanes of traffic will be maintained while this work is undertaken.

The installation of the new stormwater pipe at Mill Road will be completed.