Save Ocean Beach

The natural and physical resources of Ocean beach and its adjacent City Dunedin are under threat and you can help!

There has been some erosion of the dune face at various points along the beach due to recent swell activity, mostly in the area located between The Esplanade, St Clair and the Moana Rua Road, St Kilda. Contractors have been instructed to remove overhanging sections of dune in areas where the face has been eroded to prevent clay capping material from falling onto the beach. Due to a lowering of sand levels, the stairway from the gravel track between the St Clair seawall and the tennis courts has been closed and the lower sections removed. This section of track may also be at risk of erosion during a predicted storm event and therefore will be closely monitored and repair works arranged where necessary.

A report outlining the Project Team's preferred management options for the long term coastal protection of Ocean Beach and requesting approval to publicly consult on these options is being presented to the Community Development Committee on 7th September.

The public will be asked to have their say as the Dunedin City Council considers plans to combat erosion at Middle Beach that could lead to a "managed retreat" from the area.

Councillors at yesterday's council community development committee agreed to consult the public on a draft Ocean Beach management plan prepared by consultant Tonkin and Taylor.

The draft plan covered an area stretching 4km from St Clair to Lawyers Head and includes Middle Beach, where serious erosion occurred following severe storms in 2007.

The report recommended continuing the council's holding pattern of monitoring and sand replenishment work - put in place following the 2007 storms - in the meantime.

However, the report also canvassed 13 longer-term options and recommended a managed retreat from Middle Beach and Kettle Park, or construction of an inland buried backstop wall to protect the area, over the next 10 to 50 years.

Initial estimates showed the work could cost between $8 million and $19 million, including a clean-up of the old landfill underneath Kettle Park at risk of being further exposed by continued erosion.

Council community and recreation services manager Mick Reece said he hoped consultation could be completed by the end of this year, with recommendations that followed considered as part of next year's long-term plan hearings.

Detailed information gathered by the council's Ocean Beach project team would also be made public through the council's website to aid the consultation process, he said.

chris.morris@odt.co.nz

CLICK PHOTO TO ENLARGE
A digger works on top of the sand dunes at Middle Beach. Photo by Stephen Jaquiery.
A digger works on top of the sand dunes at Middle Beach. Photo by Stephen Jaquiery.
Coastal erosion could force Dunedin's Kettle Park and nearby dunes to be abandoned to the sea, but only after millions of dollars are spent clearing potentially toxic industrial waste from an old landfill lying underneath.

The idea of a "managed retreat" from Middle Beach and Kettle Park is one of two recommendations to come from consultants Tonkin and Taylor, as the Dunedin City Council considers how to respond to coastal erosion threatening the area.

The suggestions came even as council staff yesterday warned of further erosion likely in the area over the next few days, with large swells having stripped sand from the beach and dunes between St Clair and St Kilda in recent days.

The Tonkin and Taylor report, made public yesterday, recommended a managed retreat or construction of an inland buried backstop wall to protect critical areas along the coast, over the next 10 to 50 years.

Initial estimates showed the work could cost between $8 million and $19 million, with any retreat including a clean-up of the old landfill underneath Kettle Park.

Members of the public were warned late last year to stay clear of the area's dunes after traces of arsenic, asbestos and other industrial chemicals from the landfill were detected.

The Tonkin and Taylor report was commissioned last year as part of council planning for the Ocean Beach Domain, which began in 2007 after severe storms caused significant erosion in the area.

The domain stretches about 4km from St Clair to Lawyers Head and includes Middle Beach, where the most serious erosion problems have occurred.

The report presented a draft management plan to be considered by councillors at next week's community development committee meeting, before being released for public consultation.

Dunedin Mayor Dave Cull declined to comment yesterday, saying he was yet to read the finished report.

Council Ocean Beach project team chairman Cr Colin Weatherall said consultation was still required before any decisions were made, which was likely to be several years away.

He would not discuss his personal views when asked about the recommendations or whether he considered the costs affordable.

"Certainly, at the moment, cost is a very large driver in council's budget numbers ... I don't have an opinion on the dollars. I'd rather see what the solution is first and then how we fund it secondly.

"We've got to come up with a practical solution long term that's good for Dunedin city and the community. Therefore, we need to listen to the community and what they want to do."

The report warned erosion had already exposed industrial waste from the landfill, and expected sea-level rise - bringing waves with greater energy - increased the risk of further erosion over the rest of this century.