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The classification system is to be used as a guide, as nothing can replace a visual inspection of a rapid.
Hazards such as sweepers, log jams, cold water, and remoteness add to the class of a rapid or grade of a river.
When water is up during runoff, it almost always raises the difficulty by at least one class above the rating.
Paddlers must be aware that paddling conditions can change
greatly from day to day, and in some cases, minute to minute thereby changing its difficulty and rating.
Assume all information is out dated. Check the conditions for yourself. Don't paddle rapids beyond your ability. If in doubt, portage.
It is your responsibility to match your ability to the river you intend to run. If in doubt, don't go. River difficulty is rated using the six part International River Classification System.
A "1" being the easiest and "6" being the most difficult.
A "Grade" is given to a river as a whole , while a "Class" is given to a specific rapid. |
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- Class 1
- Moving water with a few small riffles, small regular waves, safe route through an obvious passage, and no obstructions. Little to no maneuvering required. Suitable for open canoes and kayaks.
- Class 2
- Rapids with waves up to 1 meter (3) with occasional rocks, sweepers, boulders, or artificial obstructions. Clear and wide passages. Some technical maneuvering required. Suitable for open canoes and kayaks. Extra floatation in canoes an asset.
- Class 3
- Numerous rapids with high and /or irregular waves capable of swamping an open canoe. Rocks, holes, boulders, logs, or artificial obstructions usually present. Narrow passages that often require complex maneuvering. Scouting from shore is recommended. Considered the upper limit for open canoes. Requires frequent bailing. Suitable for advanced paddlers in open canoes and kayaks. Extra floatation or spray covers in canoes an asset.
- Class 4
- Powerful irregular waves, boiling eddies, or long rapids that often require precise maneuvering. Route not obvious. Scouting from shore usually required. Conditions may make rescue difficult. NOT suitable for open canoes. Suitable for expert paddlers in closed boats. Boaters should have a solid Eskimo roll.
- Class 5
- Extremely difficult, long, and very violent rapids, large drops, steep gradient. Highly congested routes which must be scouted from shore. Rescue conditions are difficult and there is significant hazard to life and property. NOT suitable for open canoes. Suitable for expert kayakers only.
- Class 6
- Extraordinarily difficult. Difficulties of class 5 are carried to the extreme in class 6. Very dangerous and extremely high risk to boaters life. Passage should not be attempted.
The DCC does not guarantee the accuracy of the information in this site.
The DCC shall have neither liability nor responsibility to any person or entity with respect to any loss or
damage caused or alleged to be caused directly or indirectly by the information contained in this site.