A long sand spit is formed between the sea and the left bank of the river. Due to the river discharge and the net sediment transport at sea, the position of the mouth of the river shifts in the right direction with time. 2 two situations have been sketched the present situation and the situation after a couple of years. Along the coast a net sediment transport is present in the right direction. 2 deals with a situation where a modest river flows out into the sea. 1 reflects just a sandy coast with a net alongshore sediment transport.įig. 1 and 2 show two examples of pure natural stretches of sandy coasts. 3.3 Construct port/jetties and estimate afterwards the rate of sediment transportįigs.3.2 Rate of yearly sediment transport along the coast.3 ‘Problems’ with respect to the application of sand by-pass systems.
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