On a recent trip to Pool 4, which is currently crawling back into its banks, I identified a number of submerged navigation buoys (cans) that had been overtaken by the rising river waters. These cans (particularly the ones that don’t occasionally bob above the surface) pose significant hazards to navigation. I came close enough to several to capture some nice Side Images with my Humminbird 1197. As you look at these images, note that the can, its chain, and the sonar shadows from both are generally clearly visible. For a few of the cans, the turbulent, bubbly water downstream of the cans, caused by the can bouncing around in fast water near the surface, is also apparent.
Take it easy out there, and don’t wreck your day by glancing off one of these submerged cans.
