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Class IV: Advanced (CLR_4)

DGIF baseline 2026-1, the latest. Earlier baselines: timemap.

Name

advanced

Attribute

CLR Rapid Class

Definition

Intense, powerful but predictable rapids requiring precise boat handling in turbulent water; depending on the character of the river, it may include large, unavoidable water waves and holes or constricted passages demanding fast maneuvers under pressure.

Description

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 lower or upper end of this difficulty range are designated 'Class IV-' or 'Class IV+' respectively.

Accepted

2013-10-18

Allowed for

BH120 Rapids