The normal way water flows out of the dam is entirely different from the major way in which water was flowing out of the dam during the specific event. The nor

The normal way water flows out of the dam is entirely different from the major way in which water was flowing out of the dam during the specific event. The normal way water flows out of that dam has nothing whatsoever to do with either the spillway, or the emergency spillway, and was not shown in the series of photos. Semantic means "relating to meaning" and indeed different words have different meanings. Meanings actually matter, it turns out. In this case, the meanings are different enough that you would have to take a two minute or so walk to get from one water outlet (the normal one) to another (either of the two spillways).