For the priests who bore the ark stood in the midst of the Jordan, until everything was finished that Yahweh commanded Joshua to speak to the people, according to all that Moses commanded Joshua: and the people hurried and passed over.
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.