Potential Hazards
In order to have a safe trip, the boater must be aware of the various types of hazards that he or she may encounter while on a stream. The following hazards are not particular to any stream, but are those which are most commonly found.
LOWHEAD DAMS AND WATERFALLS: Know the location of all lowhead dams and waterfalls on the river that you plan to boat. Under no circumstances should you attempt to boat over a dam. Small dams can look harmless, particularly in swollen streams, but they are very dangerous because of the turbulence or hydraulic which may form at the base of the dam. Boats as well as people may become trapped in this hydraulic. Carry your boat around the hazard and launch at a safe distance downstream from all dams. Waterfalls should also be scouted and portaged. If possible, scout a river or stream in advance of any boating trip and plan your trip to avoid any dams or river obstructions.
STRAINERS: River obstructions that allow water to flow through them, but which block or "strain" people and boats, are known as "strainers". They are frequently found in the form of overhanging branches and limbs, log jams and flooded islands. All strainers should be avoided, especially in swift water.
FLOODS AND SWIFT WATER: Paddlers should never boat on streams with water spilling out of the banks. High water causes hazards such as lowhead dams to become even more dangerous. Unseen obstacles such as floating logs or submerged trees may also threaten a boater. Flood levels are monitored throughout the state and river warnings may be issued by the Division of Watercraft. River warnings and flood information are made available to boaters through public TV and radio, or by contacting any Watercraft office.
HYPOTHERMIA is the lowering of the body's core temperature. It is commonly caused by cold water, but may also be hastened by chilling winds and perspiration. When air and water temperatures combined do not exceed 120 degrees Fahrenheit, hypothermia becomes a hazard. Boaters should be prepared for cold air and water by dressing properly, i.e., wetsuits and woolen clothing. Every boater should be aware of the symptoms of hypothermia and be knowledgeable of its treatment.
FOOT ENTRAPMENTS: If your boat capsizes, do not attempt to stand or walk if you are in swift-moving water. A boater may slip and pin a foot between submerged rocks. Once pinned, the force of the current can push the boater's body under the water and hold it there. Always keep your feet up, pointed downstream, and swim to calm water before standing.
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