Transmission Gully works - upgrade to SH58 Pāuatahanui interchange
This Friday 12 February, the Transmission Gully project team will be starting work to upgrade State Highway 58 interchange at Pāuatahanui.
The roundabouts will eventually function as an interchange between Transmission Gully and SH58, connecting with motorway on and off ramps, and will be upgraded from one lane in each direction to two lanes in each direction. This will allow for more traffic and better flow between SH58 and the new Transmission Gully motorway.
Work will be completed within six months. Our Transmission Gully and SH58 project teams are working together to manage the combined impact of the interchange works and our SH58 safety improvement works on road users.
Please be aware that the layout will change during construction and take care at all times. The widening of the lanes will initially involve night works under stop-go traffic management, which will be followed by work during the day with a temporary speed limit of 30km/h.
With the Wellington region exceeding population growth projections, particularly in areas outside of the city, traffic volumes on the state highway network have exceeded original expectations. Doing this work now will help avoid congestion on the ramps connecting to the Transmission Gully motorway, and at the roundabouts on SH58.
An average of 20,000 vehicles a day are expected to use the interchange to travel to and from the Hutt Valley when Transmission Gully motorway opens to traffic later this year. Average daily traffic on this section of SH58 (between Pāuatahanui and the Hutt Valley) is currently around 19,000 vehicles - already higher than the 15,000 that was originally forecast back in 2010.
To find out more and to view the proposed new dual lane map and project stages, click here: https://createsend.com/t/t-56F455C08E6F1A042540EF23F30FEDED
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