Bar­rier idea floated

Western Suburbs Weekly - - Street Watch - By JON BAS­SETT

ECO Shark Bar­rier in­ven­tor Craig Moss says his struc­ture will cope with storms if Cottes­loe Coun­cil gets plan­ning per­mis­sion to trial the float­ing plas­tic struc­ture at Cottes­loe Beach later this year.

“The only re­sis­tance against the bar­rier is its floats, which have a buoy­ancy of 25kg, so each me­tre of the top of the bar­rier has 50kg of ‘lift­ing’ power, which, in ad­di­tion to the 500kg break­ingstrain clips be­tween each sec­tion of it to the seabed, means a 1.8 tonne break­ing strain at each sec­tion at the bot­tom,” Mr Moss said.

He said the bar­rier’s flex­i­bil­ity would cope with “a lot of move­ment” in rough weather and he found “just one float” had come off a 300m-long Eco Shark Bar­rier be­ing tri­alled at Coogee Beach, when waves 1.5m and higher were hit­ting the struc­ture in a re­cent storm.

At last week’s meet­ing, Cottes­loe coun­cil­lors ac­cepted a $38.66 Depart­ment of Trans­port jetty li­cence for their pro­posed bar­rier and sup­ported a plan­ning ap­pli­ca­tion to the WA Plan­ning Com­mis­sion (WAPC) for a bar­rier to come ashore from Cottes­loe Groyne to near the In­di­ana Restau­rant.

Chief ex­ec­u­tive Mat Hum­frey said the ap­pli­ca­tion would be sent to the WAPC by the start of next week and its as­sess­ment was not ex­pected be “trou­ble­some”.

How­ever, fund­ing for the bar­rier de­pends on whether Cottes­loe qual­i­fies for the State Gov­ern­ment money bud­geted for one shark bar­rier or en­clo­sure each in Perth and the South-West later this year.

A WAPC spokesman said any ap­pli­ca­tion for a Cottes­loe shark bar­rier should ad­dress its af­fect on the seabed and shore and how the beach would be re­stored af­ter any trial. She said a de­ci­sion would be made within 60 days, af­ter WAPC con­sults all “rel­e­vant” gov­ern­ment agen­cies but the coun­cil could choose to advertise the pro­posal for public com­ment.

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