This is what Cox Creek looked like Monday afternoon just below the dam that impounds Waverly Lake. The dam is underneath Salem Avenue, but you can just barely see it from the footbridge on the north side of the street.
I was wondering what caused all that foaming in the creek, but even though I rode my bike all around the lake I could not see any obvious cause.
And I don’t know whether a little foam was a sign of pollution or anything else untoward in the muddy water of this creek, which flows into the Willamette River maybe half a mile downstream. (hh)
If anyone knows the cause of that phenomenon, please use the “reply” function below and let me know.