The dredged material will come from the proposed expansion of the coal port at Abbot Point, south of Townsville on the Queensland coast.įinal approval came from the Great Barrier Reef Marine Park Authority, and is subject to “strict conditions.” The proposal, while controversial and opposed by environmental groups including Greenpeace, had already been approved by Federal Environment Minister Greg Hunt last month. On the offhand chance that something is either too small to see or visibility conditions are too bad, we make sure to collect all the sediment in bags at the other end of the hose.The Australian federal government has approved a plan to dump 3 million cubic meters of dredge spoil in the Great Barrier Reef Park. While dredging underwater, the divers try to carefully clean down to the concretions and avoid sucking up any artifacts. The hose then sucks up any of the sand in the grids and empties out a few meters away. By using gas-powered pumps to shoot water down a dredge head attached to a large diameter hose, it creates a vacuum in the hose. We instead do a similar process, but with an all-in-one dredge setup suited for diving.
Unlike a “traditional” land site, we cannot simply dig up the dirt and move it to the side with shovels and wheelbarrows. How exactly does LAMP work underwater and get the artifacts for the conservation team?
Every year, our research arm, the Lighthouse Archaeological Maritime Program (LAMP), heads out on the water to either survey for new wrecks, target test potential anomalies from said surveys or locate and excavate archaeological sites underwater.
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