New Zealand / Local Democracy Reporting

February flood erosion cost mounts in West Coast

14:47 pm on 25 May 2022

A "lot of potential work" is seen necessary to repair and improve stopbanks on the Whanganui River flats near Hari Hari.

Location one: the area on the Wanganui River north of Hari Hari where stopbank is being repaired and rock lined Photo: Supplied / LDR

The Whanganui River badly damaged rockwalls and eroded farmland during the February flood which also struck Westport.

Already a new protection wall less than 0.5km long has been built after a huge chunk of farmland on the true right bank of the Whanganui was washed away.

The West Coast Regional Council heard at its May meeting that some of the urgent work was approved by the end of April as an emergency procurement, by the previous director of operations Randal Beal.

The emergency procurement is allowed under council's delegations manual due to natural disasters.

A report to the meeting said verbal quotes were to be confirmed and "availability to start" was the selection criteria.

"Rock lining the wall is a capital cost ... of approximately $100,000 to the adjoining landowners.''

Council engineer James Bell had met with affected landowners from the Whanganui rating district who had confirmed the plan to proceed.

The work had been awarded to Arnold Contracting with onsite stockpiles of rock to be used.

Debra Magner told the meeting she had visited the area with regional council staff.

There were two pieces of work to be done, one of which was already under way. The other work would be reliant on rating district approval.

"There's going to be quite a lot of potential work on the Whanganui," Magner said.

Chief executive Heather Mabin said the issue facing the Whanganui rating district linked to a broader issue of how to pay.

From the February flood alone, $326,000 had been spent on emergency works.

"We are very aware that there needs to be a national plan."

Local Democracy Reporting is Public Interest Journalism funded through NZ On Air