Kenepuru corridor project updates

We're making progress on the Kenepuru corridor projects. Let us know what you think about the concepts for Kenepuru Station access crossing points and Kenepuru/Raiha intersection, and find out about progress on the other initiatives.

Kenepuru Station access, crossing point & shared path

June 2019

We’re planning a shared path for walkers and cyclists, with access from Kenepuru Station and an improved safe crossing point across Kenepuru Drive.

This is important because of growth in this area, including Kenepuru Landing and Summerset retirement village.

The initial concept showed a shared path on the eastern side of Kenepuru Drive, but your feedback, and safety considerations, suggested that the western side would be more suitable.

Based on that, we’ve developed this new concept.

Kenepuru Station crossing  point shared path

Key features

  • 3m wide shared path on the western side of Kenepuru Drive.
  • Crossing point with larger refuge – big enough to fit bicycles, pedestrians or a mobility scooter.

Kenepuru Drive cross section - AA

  

Kenepuru Drive cross section BB

What’s next?

  • Tell us what you think. Fill out the feedback form at the information evening, or below by 28 June 2019.
  • We’ll consider the feedback and commence design, aiming to be finalised by the end of 2019, for construction in early 2020.

Kenepuru/Raiha intersection overview

June 2019

Background

Traffic at this intersection is forecast to increase significantly with the opening of Transmission Gully, the Porirua Adventure Park and Kenepuru Landing.

This is likely to increase delays, and make crashes more common and more severe.

We want an option that balances safety and efficiency while future proofing until at least 2031.

There are a number of stakeholders with potentially conflicting needs – pedestrians, cyclists, public transport, over dimension vehicles and general traffic.

We sought feedback from stakeholders and independent safety assessors and will continue to do so.

Where it’s at

A roundabout was selected as the preferred option and a concept developed.

Kenepuru Drive Raiha intersection map

Key requirements

  • Address the intersection delays, especially for those turning right from Raiha Street
  • Cater for pedestrians and cyclists by keeping through speeds to below 30 km/h, in line with safe system principles
  • Enable u-turns by 12m long single unit trucks
  • Cater for over dimension vehicles and large trucks.

As there are a number of uncertainties, including the impact of Transmission Gully, we believe it would be prudent to install a temporary roundabout before Transmission Gully opens which allows the design to be tested by road users and modified as needed. The temporary roundabout is likely to be in place for at least 12 months before the permanent roundabout is constructed.

What’s next?

  • Tell us what you think about the design concept, and the plan to install a temporary roundabout to allow fine tuning. Fill out the feedback form at the information evening, or below by 28 June 2019.
  •  We’ll consider the feedback and use this to help shape the design of the temporary roundabout.

Tell us what you think

Updates on our other Kenepuru roading projects

Kenepuru/Lower Main Drive

The next phase of this project is to develop an Implementation Plan for this intersection and others in the vicinity, and this is underway.

The Implementation Plan will identify which intersections will be upgraded – and when and how.

This plan should be completed in 2019.

Your feedback has been recorded and will be factored into future planning.


Kenepuru Drive – northern section

We’ve noted your feedback from the last information evening and from our website. Once the other projects are advanced our focus will shift to developing a long term plan with stakeholders on what’s needed on these sections of Kenepuru Drive.


Kenepuru Drive – southern section

As with the northern section, outlined above. We also have an update on the Kenepuru culvert, which is in this section:

  • We’ve done a structural assessment of the loading capacity of the existing culvert and found that the culvert has got full loading capacity.
  • This results in the lifting of restrictions on this route for overweight transport.
  • The previous special bridge conditions relating to overweight permits – not allowing a vehicle to go across the culvert in Kenepuru Drive north of Ambulance Drive, AND that Kenepuru Drive can only be entered from the correct end, no longer apply.
  • Overweight vehicles can now enter Kenepuru Drive from both ends, and vehicles intending to cross the Kenepuru culvert are subject to the standard conditions of the overweight permit only, not special bridge conditions as applied in the past.

TG interchange with Kenepuru Drive

Preparation work continues adjacent to Kenepuru Drive for the bridge across the railway line. Once this is complete work will begin on filling the embankment between the bridge and Kenepuru Drive to make it level to the existing road, to prepare for the roundabout construction. The work that follows that may have some impact on Kenepuru Drive with temporary traffic management in place.

This is likely to be in early spring.