The A. presents the results of various sedimentological investigations carried out before, during and after the construction of the bridge and tunnel between Sweden and Denmark 1995-2000. The mean reason for the large focus on the sediment spill
issue was the potential impact on the marine life, but the marine life also has a significant impact on both the natural sediment transport and on the fate of the spilled sediments. The measurements showed that algae were the main turbidity-creating