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发表于 7-6-2008 01:47:49
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Sandbanks@Moreton Bay
Moreton Bay is filled with sandbanks.Between Tangalooma and Skirmish Point on Bribie Island are the MiddleBanks, Central Banks and Western Banks. From north of Moreton Islandtowards Caloundra are the Yulle Road, Spitfire Bank, and the SalamanderBank, amongst others.
Amity Banks are found just west of Amity Point, while the MoretonBanks lie to the west of the southern tip of Moreton Island. Thesebanks can be hazard for marine navigation because they are constantlychanging due to tidal currents.
Sandbanks in Moreton Bay
The Middle Banks area close to Moreton Island has been used in the past as a source of sand for large projects such as the nearby Brisbane Airport and port facilities. Past dredging has removed 18 Mn3 and the removal of another 40 Mn3 is planned[9]. Future sand extraction is expected to aid a major shipping channel straightening project.
To ensure the shipping channel remains open, several areas of thebay have been allocated for dredged material dumping sites. These siteshave been selected to provide beach nourishment, aiding the naturallong shore transport of sand along ocean beaches. |
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