Road options laid out

Riverbank Rd in Inch Clutha is one of two roads likely to be experience temporary or permanent closure to normal traffic, as a result of severe South Otago flooding in February. PHOTO: RICHARD DAVISON
Riverbank Rd in Inch Clutha is one of two roads likely to be experience temporary or permanent closure to normal traffic, as a result of severe South Otago flooding in February. PHOTO: RICHARD DAVISON
Two rural South Otago roads seem likely to be permanently altered as a result of severe flooding in February.

Options for restoring Riverbank Rd, adjoining the Clutha River in Inch Clutha, and Burning Plain Rd, adjoining the Pomahaka River in Tuapeka, were presented to the Clutha District Council’s service delivery committee during its meeting last week.

Restoration of both roads is dependent on Otago Regional Council (ORC) works to restore the respective riverbanks, which were partially or wholly washed away during the flooding.

In a report to the meeting, service delivery group manager Jules Witt detailed the costs of various options for the ORC to restore Riverbank Rd.

These ranged from about $10million for a sheet pile retaining wall, to about $200,000 for bank shaping and stabilising plantings.

Mr Witt said pre-existing erosion of the one-way section of road had led to a compromise being reached with neighbouring landowners whereby the road would be permanently closed to any traffic bigger than quad bikes.

This would allow the ORC to implement the lowest-cost repair option.

"A narrow two to three-metre track can be accommodated to allow quad bike and walking access to this area.

"The detour for vehicular traffic is not long."

The council remained in negotiations with landowners adjoining Burning Plain Rd.

Full restoration of the road on its original alignment would not be possible due to prohibitive riverbank restoration costs.

However, the road could be reconstructed on adjoining road reserve within existing budgets if agreement with landowners could be reached.

Mr Witt said the Riverbank Rd works were unlikely to be costly. A final cost assessment was yet to be made for Burning Plain Rd.

The council hoped to complete works by June next year.

richard.davison@odt.co.nz

 

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