I don't know if we had enough rain the other day to do too much damage, or just how much events like this actually effect the out come of the spawn. Just don't underestimate the damage and size of objects that can be moved during these high water events. Most of the time it scours the bottom and will blow out gravel and small rocks. I've seen boulders the size of trash cans and refrigerators rolling down the mountain before
Honestly I'm not sure either way how much of an effect it has on the spawn or population I would be interested to hear from someone with some expertise on the topic though.