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| SETTING UP THE MANTA RAY ANCHORS |
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AncorLoc New Zealand kindly supplied 20 Manta Ray AncorLocs free of charge to anchor/hold the reef in position on the seabed prior to pumping with sand. Lattitude Surveying helped establish the exact position on the seabed for each ancorloc. Bay Underwater Services did the installation...
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The bags were shipped from Soil Filters, the manufacturer in Brisbane, to Tauranga by Tasman Orient. Mainfreight at the Mount then stepped in and devanned the three shipments and stored all 24 bags till we were ready for them...
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MAKING THE WEBBING LATTICE |
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Unique Covers and Tarpaulins took on the task of sewing together 2 kilometres of webbing into an intricate lattice structure designed to hold the reef together...
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STRETCHING OUT THE WEBBING |
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The webbing lattice was stretched out in a local park and fixed to pegs in the ground, positioned to be the same as the ancorlocs already installed in the seabed at the reef site. The bags would eventually be attached to the webbing lattice...
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The geomat rolls had to be sewn togther into a 30 mtere square area to go under the bags tand stop sand working its way out from under the front section of the reef where both halves join...
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ATTACHING THE BAGS FOR FIRST HALF |
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Volunteers helped to unroll the 12 bags (weighing between 300kg and 2000kg) and attach them to the webbing lattice...
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MacLeod Cranes lifted and folded the 10 tonne reef into a 20m by 8m pile, then carefully placed it on the waiting barge supplied by the Port of Tauranga...
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On the 4th November 2005 the first half of the reef, the lefthander, finally went in the water with out a hitch...
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100 metres of 9 inch pipe with floats had to be assembled on the beach at Pilot Bay. Bay Underwater Services spud-legged barge also had to be setup up the large suction pump and join the delivery pipe to it ready to pump 100 cubic metres of sand per hour into the bags...
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The Warman suction pump, obtained from Herron Construction, sucks over 100 cubic metres of sand per hour off the seabed ande pumps it into the reef bags 100 metres away. The massive pump is needed to inflate and fill the bags, the biggest bag containing over 700 cubic metres of sand...
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ATTACHING BAGS FOR SECOND HALF |
FILLING THE FIRST HALF - 3RD MARCH 2006 |
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