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Preferred option for SH3 Manawatū Gorge replacement announced

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The NZ Transport Agency has selected a preferred option for a new State Highway 3 route to replace the closed Manawatū Gorge, connecting the Manawatū, Tararua District, Hawke’s Bay and northern Wairarapa regions.

The preferred option selected is Option 3 of the four shortlisted options, which runs from near the Te Apiti carpark western entry of the closed Manawatū Gorge, cross the Ruahine Ranges north of the Gorge, before emerging at Woodville.

NZ Transport Agency Director Regional Relationships Emma Speight says after a thorough investigation and extensive consultation, Option 3 emerged as the safest and most resilient route that best balances the combined needs of the communities, businesses and road users who will utilise it.

“Everybody understands just how important a replacement for the Gorge is. It will re-establish a key strategic transport and freight link that supports the needs of the people and economies of Central New Zealand.” Ms Speight says.

“Alongside this, the Transport Agency has committed to advancing investigations for a Regional Freight Ring Road, including a second road bridge across the Manawatū River, which stakeholders across the region see as a critical package to unlocking regional economic development opportunities.”

The Detailed Business Case process will begin immediately, covering a ten year programme of work, targeted for completion at the same time of the replacement route for the Manawatū Gorge. 

Horizons Regional Council Chairman Bruce Gordon says that progressing a Regional Freight Ring Road in parallel with the Manawatū Gorge replacement route would be a significant step forward for the region.

“It would connect key freight hubs and bring significant improvements to freight and passenger vehicle movements through the Central North Island hub of Manawatū, improving travel times and lowering costs. This better positions the region to attract investment in logistics, manufacturing and processing, which is critical for the region’s future growth and prosperity,” Mr Gordon says. 

The inclusion of a second bridge over the Manawatū River would assist in building the region’s resilience, provide a safer and more effective connection between some of the region’s key industrial areas, and remove heavy trucks from Palmerston North’s city centre.

Palmerston North City Council Mayor Grant Smith says engagement with regional stakeholders to reach a solution that achieves wider strategic objectives for both the region and the country as a whole was important.

“It is important for unlocking future regional economic development that the new State Highway 3 link offers connectivity and alignment to a proposed Regional Freight Ring Road and a new bridge. We are pleased this package of work achieves this,” Mr Smith says.

“It is a great example of central and local government collaboration to optimise public investment in infrastructure for the long term, and reflects the impact of the new Government Policy Statement on Transport, which requires regional economic development considerations to be taken into account.”

Tararua District Mayor Tracey Collis says that this outcome has strong support from a range of local authorities and industry representatives.

“The ongoing instability of the Gorge, which ultimately led to its closure in April 2017, has caused huge disruption for the region. The replacement route has been a matter of priority for the local councils and mayors and its pleasing to have worked so constructively with the Transport Agency to reach a decision that addresses both the immediate issue and the longer term strategic issues for the Tararua District and the wider region,” Ms Collis says.

A detailed business case on the new SH3 route will be finalised over the next few weeks. The project team will then seek resource consents with construction planned to begin in 2020, with the new road completed by 2024.

Download the preferred option for SH3 Manawatū Gorge

Option 3 will have an average incline gradient of 5.8%, with a maximum of 8% (in comparison, the current main alternative route, the Saddle Road, has a maximum gradient of 16%). 

Travel time is estimated to be 13 minutes for general traffic (compared to an average 16.7 minutes that it took to travel the Manawatū Gorge).

For more information visit: www.nzta.govt.nz/sh3-manawatu-gorge(external link)

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