The River Rating Scale can be used to describe the features of a river applicable for navigation by small craft (canoes, rafts or kayaks).
Parameters:
(1) speed of the water
(2) obstacles (bends, rocks, rapids, waves, holes)
(3) skill level
(4) scouting and planning
Speed of the Water
Obstacles
Skill Level
Scouting and Planning
Class
slow
none or few
none
1
moderate
some
basic
any obstacles easily avoided
2
fast
increased in number and size
moderate, intermediate
routes apparent but some scouting needed
3
large
difficult, advanced
difficult, with scouting necessary
4
very fast
large and complex
very difficult, expert
requires careful planning and scouting in advance
5
unmanageable
extreme
impossible
NA
6
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Specialty: Emergency Medicine, Critical Care
ICD-10: ,
