Photo: ODT filesThere is little evidence groynes retained sand at St Clair Beach, in Dunedin, a consultant says. However, Dunedin city councillor and groynes advocate Jules Radich said historical evidence clearly pointed to the effectiveness of the loosely planked wooden structure. The consultant, commissioned by the council, discussed various techniques such as reshaping dunes, building breakwaters, bringing in sand and creating groynes. ‘‘Groynes were built each time to mitigate the scouring effects of the Esplanade sea wall and each time they were successful,’’ he said. The consultant concluded the broad sediment transport system in Otago was currently in deficit.

Source: Otago Daily Times August 17, 2021 16:33 UTC