Work to redirect Waitaki flow near bridge complete

A $150,000 project to divert the Waitaki River away from the north side of the State Highway 1 Waitaki Bridge has been completed by the New Zealand Transport Agency (NZTA).

NZTA started work last month to stop a major river channel eroding the river bank just upstream of the northern end of the bridge.

Four rock groynes were built to direct the river flow away from the north bank.

NZTA acting Otago-Southland state highways manager Ian Duncan said the work, was now complete.

"Completing this work addresses the issue of continued erosion of this river bank that was threatening the northern bridge abutment, making it more vulnerable to flooding.

Initial monitoring of the groynes show they are working as planned and pushing the river current away from the northern side of the bridge and out to the middle of the river," he said.


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