![]() ![]() the flood tide sand shoals threaten to block the ebb tide dominant channel along the northern/eastern side of the entrance area and/or.the throat of the channel (near the southern tip of the sand spit) at The Entrance reduces to an estimated width of less than 15m measured at mid tide level.enhancing navigation within the channel.ĭredging is only undertaken when one or more of the following triggers are reached:.providing sand nourishment aiding in erosion and coastal protection of the North Entrance and Entrance beaches.reducing flood risks to life and property in low-lying areas around the Tuggerah Lakes estuary.preserving the existing ecological values of the Tuggerah Lakes estuary.maintaining an exchange of water between the Tuggerah Lakes estuary and the ocean. ![]() Council has dredged The Entrance channel when needed since 1993. ![]()
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