ADOPTED 1959, REVISED 1998
Lee Belknap, Safety Chairman
Charlie Walbridge, Safety Vice Chairman
Mac Thornton, Legal Advisor
Rich Bowers, Executive Director
This code has been prepared using the best available information and has been reviewed by a broad cross section of white-water experts. The code, however, is only a collection of guidelines; attempts to minimize risks should be flexible, not constrained by a rigid set of rules. Varying conditions and group goals may combine with unpredictable circumstances to require alternate procedures. This code is not intended to serve as a standard of care for commercial outfitters or guides.
I. PERSONAL PREPAREDNESS AND RESPONSIBILITY
Be a competent swimmer, with the ability to handle yourself under water.
a. | High water. The river’s speed and power increase tremendously as the flow increases, raising the difficulty of most rapids. Rescue becomes progressively harder as the water rises, adding to the danger. Floating debris and strainers make even an easy rapid quite hazardous. It is often misleading to judge the river level at the put in, since a small rise in a wide, shallow place will be multiplied many times where the river narrows. Use reliable gauge information whenever possible, and be aware that sun on snowpack, hard rain, and upstream dam releases may greatly increase the flow. |
b. | Cold. Cold drains your strength and robs you of the ability to make sound decisions on matters affecting your survival. Cold-water immersion, because of the initial shock and the rapid heat loss which follows, is especially dangerous. Dress appropriately for bad weather or sudden immersion in the water. When the water temperature is less than 50°F, a wet suit or dry suit is essential for protection if you swim. Next best is wool or pile clothing under a waterproof shell. In this case, you should also carry waterproof matches and a change of clothing in a waterproof bag. If, after prolonged exposure, a person experiences uncontrollable shaking, loss of coordination, or difficulty speaking, he or she is hypothermic and needs your assistance. |
c. | Strainers. Brush, fallen trees, bridge pilings, undercut rocks, or anything else that allows river current to sweep through can pin boats and boaters against the obstacle. Water pressure on anything trapped this way can be overwhelming. Rescue is often extremely difficult. Pinning may occur in fast current, with little or no white water to warn of the danger. |
d. | Dams, weirs, ledges, reversals, holes, and hydraulics. When water drops over a obstacle, it curls back on itself, forming a strong upstream current that may be capable of holding a boat or swimmer. Some holes make for excellent sport; others are proven killers. Paddlers who cannot recognize the difference should avoid all but the smallest holes. Hydraulics around man-made dams must be treated with utmost respect regardless of their height or the level of the river. Despite their seemingly benign appearance, they can create an almost escape-proof trap. The swimmer’s only exit from the “drowning machine” is to dive below the surface when the downstream current is flowing beneath the reversal. |
e. | Broaching. When a boat is pushed sideways against a rock by strong current, it may collapse and wrap. This is especially dangerous to kayak and decked canoe paddlers; these boats will collapse, and the combination of indestructible hulls and tight outfitting may create a deadly trap. Even without entrapment, releasing pinned boats can be extremely time-consuming and dangerous. To avoid pinning, throw your weight downstream towards the rock. This allows the current to slide harmlessly underneath the hull. |
a. | Develop the paddling skills and teamwork required to match the river you plan to boat. Most good paddlers develop skills gradually, and attempts to advance too quickly will compromise your safety and enjoyment. |
b. | Be in good physical and mental condition, consistent with the difficulties that may be expected. Make adjustments for loss of skills due to age, health, fitness. Any health limitations must be explained to your fellow paddlers prior to starting the trip. |
a. | The decision to participate on any trip. This includes an evaluation of the expected difficulty of the rapids under the conditions existing at the time of the put-in. |
b. | The selection of appropriate equipment, including a boat design suited to their skills and the appropriate rescue and survival gear. |
c. | The decision to scout any rapid, and to run or portage according to their best judgment. |
Other members of the group may offer advice, but paddlers should resist pressure from anyone to paddle beyond their skills. It is also their responsibility to decide whether to pass up any walk-out or take-out opportunity. | |
d. | All trip participants should consistently evaluate their own and their group’s safety, voicing their concerns when appropriate and following what they believe to be the best course of action. Paddlers are encouraged to speak with anyone whose actions on the water are dangerous, whether they are a part of your group or not. |
II. BOAT AND EQUIPMENT PREPAREDNESS
a. | Spray covers that won’t release reliably or which release prematurely. |
b. | Boat outfitting too tight to allow a fast exit, especially in low-volume kayaks or decked canoes. This includes low-hung thwarts in canoes lacking adequate clearance for your feet and kayak footbraces which fail or allow your feet to become wedged under them. |
c. | Inadequately supported decks that collapse on a paddler’s legs when a decked boat is pinned by water pressure. Inadequate clearance with the deck because of your size or build. |
d. | Loose ropes that cause entanglement. Beware of any length of loose line attached to a white-water boat. All items must be tied tightly and excess line eliminated; painters, throw lines, and safety-rope systems must be completely and effectively stored. Do not knot the end of a rope, as it can get caught in cracks between rocks. |
a. | Kayaks and covered canoes should have grab loops of one-quarter-inch-plus rope or equivalent webbing sized to admit a normal-sized hand. Stern painters are permissible if properly secured. |
b. | Open canoes should have securely anchored bow and stern painters consisting of eight to ten feet of one-quarter-inch-plus line. These must be secured in such a way that they are readily accessible, but cannot come loose accidentally. Grab loops are acceptable but are more difficult to reach after an upset. |
c. | Rafts and dories may have taut perimeter lines threaded through the loops provided. Footholds should be designed so that a paddler’s feet cannot be forced through them, causing entrapment. Flip lines should be carefully and reliably stowed. |
III. GROUP PREPAREDNESS AND RESPONSIBILITY
a. | A point paddler sets the pace. When in front, do not get in over your head. Never run drops when you cannot see a clear route to the bottom or, for advanced paddlers, a sure route to the next eddy. When in doubt, stop and scout. |
b. | Keep track of all group members. Each boat keeps the one behind it in sight, stopping if necessary. Know how many people are in your group, and take head counts regularly. No one should paddle ahead or walk out without first informing the group. Paddlers requiring additional support should stay at the center of a group and not allow themselves to lag behind in the more difficult rapids. If the group is large and contains a wide range of abilities, a “sweep boat’’ may be designated to bring up the rear. |
c. | Courtesy. On heavily used rivers, do not cut in front of a boater running a drop. Always look upstream before leaving eddies to run or play. Never enter a crowded drop or eddy when no room for you exists. Passing other groups in a rapid may be hazardous: it’s often safer to wait upstream until the group ahead has passed. |
a. | An “instructional trip’’ is characterized by a clear teacher–pupil relationship, where the primary purpose of the trip is to teach boating skills, and which is conducted for a fee. |
b. | A “commercially guided trip’’ is characterized by a licensed, professional guide conducting trips for a fee. |
IV. GUIDELINES FOR RIVER RESCUE
a. | When swimming in shallow or obstructed rapids, lie on your back with feet held high and pointed downstream. Do not attempt to stand in fast-moving water; if your foot wedges on the bottom, fast water will push you under and keep you there. Get to slow or very shallow water before attempting to stand or walk. Look ahead! Avoid possible pinning situations, including undercut rocks, strainers, downed trees, holes, and other dangers, by swimming away from them. |
b. | If the rapids are deep and powerful, roll over onto your stomach and swim aggressively for shore. Watch for eddies and slackwater, and use them to get out of the current. Strong swimmers can effect a powerful upstream ferry and get to shore fast. If the shores are obstructed with strainers or undercut rocks, however, it is safer to “ride the rapid out’’ until a safer escape can be found. |
V. UNIVERSAL RIVER SIGNALS
These signals may be substituted with an alternate set of signals agreed upon by the group.
Stop: Potential hazard ahead. Wait for “all clear” signal before proceeding, or scout ahead. Form a horizontal bar with your outstretched arms. Those seeing the signal should pass it back to others in the party.
Help: Emergency. Assist the signaler as quickly as possible. Give three long blasts on a police whistle while waving a paddle, helmet or life vest over your head. If a whistle is not available, use the visual signal alone. A whistle is best carried on a lanyard attached to your life vest.
All clear: Come ahead. In the absence of other directions, proceed down the center. Form a vertical bar with your paddle or one arm held high above your head. Paddle blade should be turned flat for maximum visibility. To signal direction or a preferred course through a rapid around obstruction, lower the previously vertical “all clear” by 45 degrees toward the side of the river with the preferred route. Never point toward the obstacle you wish to avoid.
I’m OK: I’m not hurt. While holding an elbow outward toward your side, repeatedly pat the top of your head.
VI. INTERNATIONAL SCALE OF RIVER DIFFICULTY
This is the American version of a rating system used to compare river difficulty throughout the world. This system is not exact: rivers do not always fit easily into one category, and regional or individual interpretations may cause misunderstandings. It is no substitute for a guidebook or accurate first-hand descriptions of a run.
Paddlers attempting difficult runs in unfamiliar areas should act cautiously until they get a feel for the way the scale is interpreted locally. River difficulty may change each year due to fluctuations in water level, downed trees, recent floods, geological disturbances, or bad weather. Stay alert for unexpected problems.
As river difficulty increases, the danger to swimming paddlers becomes more severe. As rapids become longer and more continuous, the challenge increases. There is a difference between running an occasional Class IV rapid and dealing with an entire river of this category. Allow an extra margin of safety between skills and river ratings when the water is cold or if the river itself is remote and inaccessible.
Examples of commonly run rapids that fit each of the classifications are presented in the document “International Scale of River Difficulty—Standard Rated Rapids” (online at www.americanwhitewater.org/archive/safety/bnch//mark.htm). Rapids of a difficulty similar to a rapids on this list are rated the same. Rivers are also rated using this scale. A river rating should take into account many factors including the difficulty of individual rapids, remoteness, hazards, etc.
The Six Difficulty Classes:
Class I: Easy. Fast-moving water with riffles and small waves. Few obstructions, all obvious and easily missed with little training. Risk to swimmers is slight; self-rescue is easy.
Class II: Novice. Straightforward rapids with wide, clear channels that are evident without scouting. Occasional maneuvering may be required, but rocks and medium-sized waves are easily missed by trained paddlers. Swimmers are seldom injured, and group assistance, while helpful, is seldom needed. Rapids that are at the upper end of this difficulty range are designated “Class II+.”
Class III: Intermediate. Rapids with moderate, irregular waves that may be difficult to avoid and can swamp an open canoe. Complex maneuvers in fast current and good boat control in tight passages or around ledges are often required; large waves or strainers may be present but are easily avoided. Strong eddies and powerful current effects can be found, particularly on large-volume rivers. Scouting is advisable for inexperienced parties. Injuries while swimming are rare; self-rescue is usually easy, but group assistance may be required to avoid long swims. Rapids that are at the lower or upper end of this difficulty range are designated “Class III–” or “Class III+,” respectively.
Class IV: Advanced. Intense, powerful, but predictable rapids requiring precise boat handling in turbulent water. Depending on the character of the river, it may feature large, unavoidable waves and holes or constricted passages demanding fast maneuvers under pressure. A fast, reliable eddy turn may be needed to initiate maneuvers, scout rapids, or rest. Rapids may require “must’’ moves above dangerous hazards. Scouting may be necessary the first time down. Risk of injury to swimmers is moderate to high, and water conditions may make self-rescue difficult. Group assistance for rescue is often essential but requires practiced skills. A strong Eskimo roll is highly recommended. Rapids that are at the upper end of this difficulty range are designated “Class IV–” or “Class IV+,” respectively.
Class V: Expert. Extremely long, obstructed, or very violent rapids that expose a paddler to added risk. Drops may contain large, unavoidable waves and holes or steep, congested chutes with complex, demanding routes. Rapids may continue for long distances between pools, demanding a high level of fitness. What eddies exist may be small, turbulent, or difficult to reach. At the high end of the scale, several of these factors may be combined. Scouting is recommended but may be difficult. Swims are dangerous, and rescue is often difficult even for experts. A very reliable Eskimo roll, proper equipment, extensive experience, and practiced rescue skills are essential. Because of the large range of difficulty that exists beyond Class IV, Class 5 is an open-ended, multiple-level scale designated by 5.0, 5.1, 5.2, etc. Each of these levels is an order of magnitude more difficult than the last. Example: increasing difficulty from Class 5.0 to Class 5.1 is a similar order of magnitude as increasing from Class IV to Class 5.0.
Class VI: Extreme and exploratory. These runs have almost never been attempted and often exemplify extremes of difficulty, unpredictability, and danger. The consequences of errors are very severe, and rescue may be impossible. For teams of experts only, at favorable water levels, after close personal inspection and taking all precautions. After a Class VI rapids has been run many times, its rating may be changed to an appropriate Class 5.x rating.
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