Allington Road culvert replacement

We are replacing the concrete culverts that help carry the Karori Stream under Allington Road, Karori.

About the project

The Karori Stream runs underneath Allington Road through special water channels called culverts. One of the culverts is 100 years old, which has left it vulnerable to earthquakes and needing restrictions on heavy vehicles. The existing culverts act as a bottleneck in the stream and cause upstream flooding of nearby properties.

To improve this, we are proposing a new bridge to replace the two existing culverts.

This work is scheduled to get underway from December 2022 and extend to the second half of 2023.

Take a look at the animation of the anticipated construction.

Project update - November 2022

We have completed the detailed designs and the Road Safety Audits on Designs, and we are currently in the process of selecting a suitable contractor for this construction work. 

Greater Wellington Regional Council, Metlink, and Council officers are exploring further alternatives arrangements for nearby residents.

In September 2022 and October 2022, Council officers had a meeting with Karori Resident Association, where concerns were raised from residents regarding bus diversion routes. We presented alternative bus-turning arrangements, and this will be finalised once we have selected a contractor. 

Impact on traffic and residents

We will be in regular contact with residents throughout this project.

It is intended to stage construction so that two lanes of traffic can pass through the site at peak times. This may be reduced to one lane outside of peak hours.

Some properties immediately adjacent to the culvert site will be affected by the construction staging. Wellington City Council will be contacting these residents directly to discuss their specific circumstances and the steps that are proposed to minimise their disruption.

Construction can be noisy and dusty, and certain construction activities such as driving piles can produce noise and vibration. These sorts of activities are only expected over relatively brief periods of the construction and we will be making every effort to minimise disruption.

Pedestrian access

A confined construction site is not the place for pedestrians, especially if they are children.

Considering this, pedestrians will be rerouted around the site via the footbridge that crosses the Karori Stream to the north of Allington Road and through the Terawhiti Wilf Glover Turf onto Makara Road.

We are conscious about providing a safe access through this route. Additional lighting will be provided along with providing priority to pedestrians when accessing the turf carpark.

Bus users

The bus terminal will need to be temporarily relocated as it extends over the culverts. There are a few key things that you need to know if you use the buses: 

  • Buses coming from Karori shops will follow the existing route of the bus number 33, looping from Karori Road onto Richmond Avenue, and return to Karori Road via Woodhouse Avenue. Some kerbside car parks will be temporarily coned off to increase space for turning buses.
  • If you travel to Karori Terminus, you will have to get off near the intersection of Woodhouse Avenue and South Karori Road.
  • If you travel into town on bus number 2, you will have to get on to the bus at a new temporary stop that is located by Karori Park.
  • All other routes into town will use the existing bus stop at Karori Park which will be temporarily extended.

Stream ecology

The Karori stream is a valuable source of biodiversity in the area. We are working with Iwi, Greater Wellington Regional Council, and ecologists to construct the bridge in a way that maintains the natural ecology of the stream along with its amenity.

Residents drop-in session

We intend to hold follow up residents’ drop-in session in October 2022 to allow residents to speak with the contractor who will be completing the work.

Contact us

If you have any questions about the Allington Road culvert replacement, contact us:

Phone: 04 499 4444