Hazard Warning: Hazard information may be user-submitted and unverified. Conditions change frequently. Always scout rapids and obstacles yourself.
Rapid OR Class IV

The Sieve

Clackamas - 2. Collawash River to Three Lynx Power Station (OR)

Gauge Conditions
Runnable: 700.0 – 5,000.0 CFS

Photo
The Sieve
Photo courtesy of American Whitewater
Description

The Sieve is preceded by a long rapid with a powerful right line and a technical left line. The left line gets you to the scouting eddy easier as the right line pushes quickly downstream into the congested right side of the Sieve rapid. There are two scouting/portage eddies on the left. The line on the Sieve involves punching a hole through the initial slot on the left and then deciding which of 3 slots to choose to get back to the main part of the river. All 3 slots have their difficulties and pros/cons so scouting from the eddies above the rapid is highly suggested if you aren't familiar with the rapid.

Location
Type
Rapid
Difficulty
Class IV
Mile Marker
6.7 mi
Directions
View Full Run
2. Collawash River to Three Lynx Power Station
Clackamas
III-IV 8.6 mi
Current Conditions
5-Day Forecast
Whitewater data from
American Whitewater