Te Kaupapa Mahi mō te Manawaroa i te Waipuke o te Manga o Te Ararata Te Ararata Creek Flood Resilience Project

To reduce flooding risks in the area, we will:

• replace and widen the Walmsley Road Bridge between Hall Avenue and McKenzie Road to increase waterflow beneath it
• build a debris trap A debris trap stops large rubbish and natural materials from blocking pipes or waterways which can cause flooding. in the creek near the end of Hinau Road to stop large rubbish blocking the creek
• plant native shrubs and grasses along the edge of the creek to help stabilise the banks
• build a permanent maintenance platform and an accessway to the culverts  A stormwater pipe not connected to the main stormwater system. These are normally used under roads or driveways. on Mahunga Drive. This will make it easier for our maintenance teams to keep the culverts clean and free from blockages.

While this project will not completely prevent flooding, investing now will reduce risks by:

• providing more protection against future floods
• better preparing us for heavy rain events.

How the work will affect you

Temporary closure of Walmsley Road

From Saturday 4 October 2025, Walmsley Road will be closed between Hall Avenue and McKenzie Road for up to six months. This will allow us to replace the Walmsley Road Bridge as soon as possible.

We looked at other ways to finish the works without closing that section of the road, such as:

• closing part of the road for up to two years
• building a temporary bridge for traffic.

However, these options would:

• cost more
• cause more disruption
• risk us losing funding.

There will be traffic detours while Walmsley Road between Hall Avenue and McKenzie Road is closed. You will still be able to walk and cycle over a temporary bridge.

Traffic detours

Vehicles travelling on Walmsley Road to the Southwestern Motorway (SH20) northbound on-ramp will be detoured through Mahunga Drive and Rimu Road.

SH20 off and on-ramps will stay open.

Vehicles travelling on Walmsley Road to and from McKenzie Road, Miller Road and Coronation Road will be able to take a detour through:

• Hall Avenue, Elmdon Street and Bader Drive, or
• Kirkbride Road, Massey Drive and Savill Drive.

Traffic management

We will put temporary traffic controls in place on Hall Avenue, Elmdon Street and Bader Drive to keep traffic moving safely. These include:

• traffic lights
• speed bumps
• roundabouts
• no on-road parking
• reduced speeds.

We will remove the detours and traffic controls when we finish construction.

Affected bus services

We will reroute bus services 309 and 309X.

Visit the Auckland Transport (AT) app to check for:

• bus stop closures
• rerouted bus services
• alternative bus stops.

Walmsley Road and Mahunga Drive work sites

• Construction will usually take place between 7.30am and 6pm every Monday to Saturday, and on Sundays for emergency works only.
• During work hours, noise, dust and vibrations might affect neighbouring properties. We will monitor this to make sure they stay within required limits. 
• If we need access to private property, we will contact you beforehand.

Te Ararata Creek Reserve, Black Bridge Reserve and Mahunga Reserve

We will restrict access to sections of these reserves while construction is taking place.

What happens next

• October 2025: Walmsley Road closes
• March 2026: Walmsley Road reopens
• Mid-2026: Construction work ends.

Email bluegreen@aucklandcouncil.govt.nz for more information about this project.