Over the past 10 years there have been over 200 crashes causing four deaths and 17 serious injuries on the section of SH58 between State Highway 2 and the Pauatahanui roundabout.
SH58 is a challenging road to drive. The road is narrow with tight, difficult curves and many access points and intersections.
We have investigated ways to improve safety on SH58. This includes rounds of consultation with the community and other stakeholders over recent years. In 2017/18, following further engagement, we significantly expanded the scope of road safety work to achieve greater safety outcomes than our original proposal.
Safety improvements underway
In 2018 the speed limit was lowered from 100km/h to 80km/h. Already we are seeing positive results with a reduction in the speed being travelled by the fastest motorists, while the average speeds across the route have been maintained at just under 80km/h. We have also addressed some of the high-risk curves west of Mt Cecil Rd, by straightening them and installing a median barrier. The remaining safety improvements will proceed in two stages shown in the map below.
Stage 1 safety improvements are expected to start in coming months from Hayward’s Interchange through to Mt Cecil Rd. This work involves widening the road to include an uphill crawler lane, adding sealed shoulders, installing road barriers and curve corrections.
Stage 2 from Mt Cecil Rd through to the Transmission Gully Interchange at Pauatahanui involves widening the road, adding sealed shoulders, installing roadside and median safety barriers, curve corrections, two new roundabouts and improvements to bridges. This work will begin once consents and property acquisition are completed, and funding becomes available. This will occur after Transmission Gully opens.
We initially planned to complete these works in one stage before the Transmission Gully opening, however increasing costs and difficulties in accessing materials during the final stages of Transmission Gully construction have meant we have had to stage the project.
Work on SH58 safety improvements begin at the eastern end of the highway to avoid effects of the Transmission Gully construction activities and manage potential disruption to motorists.
Construction on Stage 1 safety Improvements
Construction on the first stage of the State Highway 58 safety improvements is starting at the Hayward’s interchange end of the highway and will quickly ramp up to cover multiple sites concurrently. There will be traffic management in place as required. This stage of the safety improvements is due to be completed in early 2021.
We’ve listened to feedback from the local community, road users and other stakeholders about safety concerns for the Stage 2 area, including at key intersections, of SH58.
Some concerns relate to the efficiency of the road, such as the time it takes to turn out of driveways and intersections. However, interim improvements are addressing safety concerns associated with speed, overtaking and driver inattention.
SH58 interim safety improvements work plan [PDF, 88 KB]
The interim safety improvements diagram [PDF, 82 KB] shows the type and location of the improvements and more detail of the Flightys/Murphys intersection upgrade.
- to enhance safety of travel on the Wellington state highway network, and specifically SH58
- to maintain journey time reliability between SH2 in the Hutt Valley and Transmission Gully
- to appropriately balance the needs of local and state highway traffic.