Coastal engineer with Crown Lands, Andy Hartley talks Cr Garry Innes and Member for Coffs Harbour Andrew Fraser through the preferred North Wall design at the Cavanbah Centre.
Coastal engineer with Crown Lands, Andy Hartley talks Cr Garry Innes and Member for Coffs Harbour Andrew Fraser through the preferred North Wall design at the Cavanbah Centre. Gemima Harvey

Finalising the North Wall design

THE upgrade of the Coffs Harbour north wall has seen a $2.5 million construction tender awarded to local firm FM Glenn, which will soon start to manufacture 1200 concrete blocks, known as hanbars for the upgrade.

Here is what the NSW Department of Primary Industries Land and Natural Resources envisages the wall will look like by the end of next year.

After extensive consultation with harbour user groups, the department this week shared artist impressions of its preferred option with the public saying 'finer details are still being worked through before the design is finalised.'

The preferred North Wall design on display at the Cavanbah Centre. 29 JUNE 2015 Photo Gemima Harvey/Coffs Coast Advocate
The preferred North Wall design on display at the Cavanbah Centre. 29 JUNE 2015 Photo Gemima Harvey/Coffs Coast Advocate Gemima Harvey

Importantly the design has allayed concerns a design similar to the upgraded eastern breakwater would be replicated on the northern side of the harbour, impacting views of the coastline to the north.

A spokesman for the department said there are three stages to the wall upgrade with the total project to take one year.

Firstly, the marina boardwalk will be extended to Mutton Bird Island, ensuring constant pedestrian access to Mutton Bird while the break wall is upgraded.

Stage two includes widening the break wall and building a new path to bolster pedestrian safety, with a rock height of 0.8 metres above the path.

The final stage, which covers the last third of the breakwater toward Mutton Bird Island, will see the construction of a 10 metre rock berm at water level, with concrete hanbars added to a maximum height of 1.5 metres.

The preferred North Wall design on display at the Cavanbah Centre. 29 JUNE 2015 Photo Gemima Harvey/Coffs Coast Advocate
The preferred North Wall design on display at the Cavanbah Centre. 29 JUNE 2015 Photo Gemima Harvey/Coffs Coast Advocate Gemima Harvey

Importantly, the hanbars will be positioned to have a gap in the middle, so children can still see through and appreciate the view, the spokesman said.

"The new wall will increase the level of protection to people, property and boats at the Coffs Harbour marina by preventing waves overtopping the breakwater," Minister for Lands and Water Niall Blair said.

"The manufacture of the hanbars will take up to six months and cost $2.5 million."

Member for Coffs Harbour Andrew Fraser said the design was being finalised with works on the breakwater set to start early next year.

"More than 100,000 people use the northern breakwater to access Muttonbird Island every year and the works are part of the NSW Government's significant investment in regional coastal infrastructure."

Work is also under way to replace the Coffs Harbour Low Level Wharf as part of a $1-million project.

A contract has been awarded to Smithbridge Australia to replace the existing wharf which is more than 30-years old.

Big seas over the northern breakwall at Coffs harbour marina Photo: Trevor Veale / The Coffs Coast Advocate
Big seas over the northern breakwall at Coffs harbour marina Photo: Trevor Veale / The Coffs Coast Advocate Trevor Veale

These works will support and benefit the local commercial fishing industry and the new wharf is expected to be completed by the end of September.



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