A plan to put an end to the loss of 10m a year at Noosa Spit, help protect Noosa Woods and rebuild Dog Beach will go before Sunshine Coast council.
It has been prepared by Professor Rodger Tomlinson of Griffith University and has been peer reviewed.
The proposed staged plan involves diversion of the current channel using a combination of semi-submerged, sand- filled fabric containers known as geocontainers and rock revetments.
Council’s original proposal to construct a rock revetment in front of the lost beach area was abandoned after extensive modelling.
Professor Tomlinson said a do-nothing option would ultimately lead to erosion of the Spit, allowing channel scour and possibly wave attack along the foreshore of Noosa Sound.
He said there was also a possibility of a breakthrough of the ocean at Noosa Woods.
“It is difficult to come up with any other viable alternatives which would meet the diverse design constraints of bank stability, beach amenity and limited environmental impact.
“The recommended use of geocontainers also provides a cost-effective solution with minimal environmental impact”.
A report outlining the recommendation will go to council for endorsement in October.
If endorsed by council, the project will be staged over two to three years to both spread the cost and allow monitoring of the river and impacts of any work.
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