The afflux in Example 9.3 is of some concern since the bridge is to be constructed in a town centre that is already subjected to periodic flooding. A contraction ratio of about 0.11 is easily...

The afflux in Example 9.3 is of some concern since the bridge is to be constructed in a town centre that is already subjected to periodic flooding. A contraction ratio of about 0.11 is easily possible, and a more efficient pier shape could be used. Repeat the calculations to see what reduction in afflux can be achieved.