SH 59 Work on Slipface

Waka Kotahi has advised that further work is to be undertaken on the slipface just noth of the Northern Lookout.

You will have noticed work restarting on the slip face north of Pukerua Bay.

Phase 2 of the coast road slip control project is about to get underway.

Two stop/goes during the daytime this week on the coast road are a taste of things to come.

The work won’t have much impact on traffic at first – just the shoulder closed with the current 50km/h speed restriction continuing on.

The Phase 2 hillside stabilisation and safety project follows the earlier work to stabilise the hillside where a large slip in late August closed the road for several weeks.

This second phase of  work will strengthen the earlier slip control work and will include drilling drains to improve drainage, installing mesh and soil anchors in some areas, and spraying a concrete surface (shotcrete) over others.

  • December stop/go

From 6 December, stop/go traffic control will be in use fulltime day and night until the Christmas/New Year break, then will resume on Monday 9 January through to Friday 27 January.

Only one lane will be open and traffic lights will control the flow of vehicles.

Road users should expect delays.

However, we will be directing through-traffic to use the alternative route of  SH1 Transmission Gully and leave this area of SH59 to the locals as much as possible.

There will be a break from the works over Christmas and New Year when both lanes will be open.

Pedestrians and cyclists can continue using the path beside the seawall throughout the project, though they should be aware there may be times when our traffic controllers ask them to wait.

While the contractors are busy with this hillside stabilisation work, we will take the opportunity to reseal sections of State Highway 59 between Plimmerton roundabout and Pukerua Bay.

The resealing will take approximately 4 days and is planned for early December.

We will send you more information when the resealing dates are confirmed. Regular updates will be sent on progress with the Phase 2 hillside stabilisation project.

FYI – please see the media release below on the Pukerua Bay slip site for you to share. Please contact us with any queries.

Ngā mihi,

Kerry du-Pont, Anita De Klerk & Lynsey Morgan / Customer Communications and Engagement Team
Wellington Transport Alliance

E; / M 027 227 9841 / w

E  / M 027 202 1670 / w

21 November 2022 9:20 am | Waka Kotahi NZ Transport Agency

The work site

More work is planned to stabilise a slip face on State Highway 59, Pukerua Bay, on the Kāpiti Coast.

The section of highway was closed for around four weeks in late August and early September for slip clearing and stabilisation work.

Mark Owen, Regional Manager Wellington/Top of the South, says phase two of repair works at the site begins this week.

“It will strengthen the earlier slip control work and includes drilling drains, installing mesh and soil anchors in some areas, and spraying a concrete surface (shotcrete) over others.”

“We know regular users of the road and local residents have noticed the effect the weather has had on the earlier repairs. It was always our intention to do more work at this site. Keeping this vital transport link maintained and resilient is a priority”, Mr Owen says.

Contractors will get the work underway this week from Monday, 21 November. There will be stop/go traffic control in place for two days while concrete barriers are placed on the road shoulder to protect the work site. This should not have a major effect on traffic flows as vehicles will be able to move freely while work is done behind the barriers

The main works will begin on 6 December under fulltime stop/go traffic management. Mark Owen says this will affect road users more.

“Only one lane will be open, and traffic lights will control vehicle access. It means there will be delays on this part of State Highway 59. We recommend drivers detour via State Highway 1, Transmission Gully, while this project is underway.”

Works schedule:

  • 21 November to 6 December
    • Stop/go traffic control for 2 days to install shoulder closure
    • Then 50km/h speed limit with road shoulder closed
    • Slip stabilisation works
  • 6 December – 20 December
    • One laned open and stop/go traffic control will be in use full time, day and night
    • Slip stabilisation works
  • 9 January – 27 January
    • One laned open and stop/go traffic control will be in use full time, day and night
    • Slip stabilisation Works

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