There would need to be a test of reasonable likelihood of use for travel and transportation or exercise of indigenous rights. If it's a minor ditch or crevice that fills with water temporarily, that would not, in my opinion, fall under that definition. This is not the canoe test. It's not as restrictive as it was under the MPA. It's in the middle, but with some clear guidance to industry and to municipalities.
On May 3rd, 2018. See this statement in context.