“Early Warning System” Post date April 17, 2018 Share this:Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window)Click to share on Pinterest (Opens in new window)Click to share on Reddit (Opens in new window)MoreClick to share on LinkedIn (Opens in new window)Click to share on Tumblr (Opens in new window) Related Tags circle, danger, Early Warning System, EWS, look down, manhole, manhole cover, rust, sewer, shapes, squares, storm, storm drain, storm sewer, texture ← “Whispies” → “Hanging Around the Arcade”