Landslides, floods and other natural events can create hazardous conditions in moments. Always learn as much about the waterway you intend to boat as possible. Low Water - Many Western Oregon reservoirs are currently at very low levels and may remain unfilled throughout the summer. This doesn't mean the reservoirs are unusuable, but there are potential risks of which boaters should be aware. Many of these reservoirs were former forest.
Stumps can destroy outdrives, outboard and boat hulls.
Worse, they can injure or kill a water skier or boater. Gravel bars, shoals and rocks are another potential hazard. As always, it is up to the boater to know what water-borne hazards lay before the bow. Willamette and Rogue system reservoirs are the most heavily used reservoirs facing low water. Tree across river.