Otago: Log trucks days numbered

Wednesday 26 Jun 2019

Days of log trucks may be numbered - A multimillion-dollar project to deepen part of Otago Harbour- and help get log trucks off State Highway 88 - is being considered, Port Otago says.

The company has been investigating a long-term project to remove heavy vehicles heading to and from its Port Chalmers facility via SH88 since early last year.

At present, about 60% of container traffic heading to Port Otago went by rail, but 70% of log traffic - or 100 trucks on average per day - travelled on SH88 to Port Chalmers, Port Otago chief executive Kevin Winders said.

The volume of heavy traffic using the highway has prompted safety concerns for some residents, most recently when a fully-laden log truck trailer tipped over at Maia last month.

Mr Winders said yesterday the solution was not as simple as transferring log trucks' loads to rail partway through their journey.

The economics of doing so still did not stack up when logs came to Dunedin from within about 200km of the city, he said.

Instead, Port Otago wanted to see an expansion of its existing log depot at Fryatt St, opposite Forsyth Barr Stadium.

The depot already catered for 30% of the company's log traffic, which was offloaded from trucks and on to log ships, and the site had capacity for growth. However, the shallow depth of the upper harbour channel at present meant log ships could not leave the depot more than half full.

As a result, Port Otago was considering a project to deepen and widen the upper harbour channel - between Port Chalmers and the city centre - over the next four or five years, he said.

Dredging between Port Chalmers and Taiaroa Head was largely complete, having achieved a depth of 14m, and Port Otago already had consent to deepen the upper harbour channel from 7m to 8.5m.

That dredging work was already under way, but the company was investigating the feasibility of going further, by deepening the upper harbour channel to 10.5m, he said.

The channel would also be widened as part of the project, while the realignment of some problematic bends along the route was already being planned.

The project still needed to be signed off by the Port Otago board, and would then require resource consent - potentially an 18-month process - while dredging would take a further three years, he said.

But once it was completed, fully-laden log ships - as well as other heavier vessels - would be able to navigate the route, removing the need for log trucks to use SH88.

The deeper channel would also benefit Port Otago's major customers, for example by allowing larger - but less frequent - shipments of fuel and fertiliser to be delivered to the city, he said.

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Source: ODT

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