The children of Israel did so as Joshua commanded, and took up twelve stones out of the midst of the Jordan, as Yahweh spoke to Joshua, according to the number of the tribes of the children of Israel; and they carried them over with them to the place where they lodged, and laid them down there.
Also, the fact of Joshua's commandment to the twelve to go back to where the priests stood and bring the stones shows that the people were still passing over, for, when they were "clean passed over" the priests left their position in the midst of Jordan.