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. 

Take a look at the animation of the anticipated construction.

Project update -February 2023

Council met with Karori Residents’ Association where several options were considered for a bus terminus point. We are currently considering the options, with the biggest focus being on the health and safety of road users.

We are developing concept designs and liaising with Metlink to explore suitability for the buses before implementation.

The contract awarding process has been put on hold until we finalise the suitable alternative bus terminus point.


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.

Contact us

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