(3)Changing line of embankment. - that the line of any public embankment should be changed or lengthened, or that any public embankment should be renewed, or that a new embankment should be constructed instead of any public embankment, or that any embankment should be constructed for the protection of any lands or for the improvement of any water-course, or that a sluice in any public embankment should be made;
