FOAMING AT THE MOUTH OF THE RIVER May 6, 2009 This watery vignette took shape yesterday just below the Hubbard Avenue bridge in Middletown, opposite the Shadow Lake dam, at the headwaters of the Navesink River. Anybody know what the white foam is? Email this story Posted on May 6, 2009 at 9:01 am, filed under MIDDLETOWN, Rivers & streams. Bookmark the permalink. Follow any comments here with the RSS feed for this post. Trackbacks are closed, but you can post a comment. Email this story.