(Photo by Site Engineer, Oliver Brooks) Night works continue with the heavy lifting taking place when the wind is low and State Highway 20B is closed to through traffic. The image above is a 450-tonne crane lifting a large piece of storm water infrastructure into place.

State Highway 20B Early Improvements Update

16 October 2020

Kia ora koutou,

State Highway 20B Project Updates keep you up-to-date with project progress and upcoming physical works on State Highway 20B (SH20B).

Night time paving works are ongoing and we are now working between Orrs Road and Campana Road.

With the progress of paving you will notice new line marks between Pukaki Creek Bridge and Orrs Road. This will then be followed up with the installation of temporary steel barriers on the east bound carriageway.

Waka Kotahi is proposing a safer speed limit of 60km/h replacing the current 100km/h zone in SH20B

PUBLIC CONSULTATION: We want to hear your views on speed limit review and a new bylaw on bus/T3 lanes

Public consultation is now open to hear from you on a new speed limit and a bylaw on bus/T3 lanes along SH20B.

The consultation includes our proposal on

• proposed speed limit change from the current 100km/h to 60km/h between Orrs Road and Manukau Memorial Gardens and
• a new bylaw on the dedicated bus and Transit 3 (T3) lanes.

The public consultation ends on 8 November. You can provide your feedback by either:

• completing our online survey
• downloading and completing the consultation form.

Please check out updated information on 20Connect from next Monday 12 October and have your say.

Project progress

Activities next week (18 - 25 October)

Please note that these works are weather dependent and may be delayed.

During the day (from 7am to 6pm)

Zone 1 (from Pukaki Creek Bridge to East of Campana Road)

• The second layer of asphalt laid for road widening
• Pavement laid at the Aviation Security area
• Installation of kerb, channel and barrier (concrete and temporary steel) between Pukaki Creek Bridge and the Campana Road intersection
• Preparing subgrade from Orrs Road to Waokauri Creek Bridge
• Stock fencing will continue to be installed by Campana Road
• Widening works at the Campana Road intersection will start
• Stormwater drainage continues between Pukaki Creek Bridge and the Aviation Security gate.

Waokauri Bridge

• Night works to backfill the central pier and removing the existing concrete walkway 

Zone 2 (from East of Campana Road to the SH20 Interchange)

• Completion of drainage line installation throughout Zone 2
• Demolition of former gantry foundations continues
• Placing of subgrade improvement layer and completing box cuts
• Installation of subsoil drainage continues

Utilities (throughout the site)

• The new power transformer at Orrs Road is live after a successful shut-down on Saturday 10 Oct.
• The section between Orrs Road and Campana Road has changed over from old to new power network.
• Vector has provided a temporary power generator for a number of customers during the shut-down.
• The common service trenching crew continues working in the area close to SH20 on-ramp and has successfully crossed a large number of existing services with no damage.
• Planning to lay service ducts from Pukaki Creek Bridge to Orrs Road on the north side of SH20B from next week.

At night (all zones from 9pm to 5am, Sunday to Thursday)

There will be no through traffic from the SH20 Interchange to the Tom Pearce Drive roundabout. Please follow the posted detour signs on SH20B.

People on foot, bikes and residents will still have access.

The road will be under either stop/go or full road closure traffic management

• Trenching works for drainage in the verge are ongoing.
• The main focus of nightshift is continuing with asphalt pavement replacement along the existing carriageway.

Safety

SH20B has introduced the following safety measures to protect all road and shared path users including two temporary signalised road crossings for people on foot and on bikes:

• All traffic must turn left both into and out of properties and side roads. Manukau Memorial Gardens is exempt from left-turn movements
• Vehicles turning into driveways and side roads on the southern side must watch for bikes and foot traffic on the temporary shared cycle and walking path
• Night time detours will likely be in place from Sunday to Thursday between 9pm and 5am.  Please follow the posted detour routes
• The speed limit for SH20B is 50kph from Manukau Memorial Gardens to Tom Pearce Drive, except at crossing points and coned paving areas where the speed will briefly drop to 30kph. Please drive safely and allow extra time for your journey.

Looking Ahead

An ongoing comprehensive programme of night works is in place to enable trenching for utility services and ducting at multiple locations across SH20B. Posted detours will be in place. We apologise for any inconvenience and thank you for your patience.

Please drive safely and allow extra time for your journey.

BUS ROUTE 380

Due to the road works on SH20B, please expect delays and allow extra time for your journey for those using Bus Route 380. Thank you for your understanding.

Contact us

Please call us at 0800 796 796 or email sh20B@nzta.govt.nz if you have any questions about the SH20B Early Improvements project.

Project overview

Waka Kotahi NZ Transport Agency and Auckland International Airport Limited are upgrading State Highway 20B for better and more reliable travel options with a new shared path and additional priority lanes between Pukaki Creek Bridge and State Highway 20.

This project will integrate with improved transport facilities within the airport precinct along SH20B and at the upgraded Puhinui Station Interchange.

The project is the first step of the Southwest Gateway programme to provide better public transport, walking and cycling facilities with safer and more efficient freight movements to, from and around Southwest Auckland.

Fulton Hogan undertakes this work on behalf of Waka Kotahi.

Key early improvements on State Highway 20B to be delivered by 2021 include:

• A safe place for people to walk and ride bikes
• Safety improvements including central median barrier protection, improved lighting and a reduced speed
• Improved pavement, drainage and stormwater treatment
• Two improved intersections at Campana Road and Manukau Memorial Gardens.

Waka Kotahi NZ Transport Agency works to create transport solutions for all New Zealanders – from helping new drivers earn their licences, to leading safety campaigns to investing in public transport, state highways and local roads.

For more information on the project, you can also visit our website at www.nzta.govt.nz/projects/southwest-gateway/20connect/