Yes. The St. Mary River main canal kind of acts as a dam through southern Alberta. It blocks somewhat the natural flows of water back to the river basin. By doing this project, in flood years we're returning water back to the natural river basin that is held up as a result of the St. Mary River main canal as it goes across the land. It kind of impedes the natural drainage flows, and most farmers don't like their land being flooded, especially when there's a crop on it, so the idea is to get that water off the land and fields as quickly as possible. This emergency spillway helps get the water back more quickly to where the water would naturally flow.
On October 3rd, 2022. See this statement in context.