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

Boulder Rapid

Sandy - 3. Marmot Dam site to Revenue Bridge (OR)

Gauge Conditions
Runnable: 400.0 – 5,000.0 CFS
Photo
Boulder Rapid
Photo courtesy of American Whitewater
Description

This rapid is full of undercuts and sieves, and the slots on the right collect wood. It is a tricky scout and can be run both left and right depending on flows, wood, and your skills. Most people run it in the channel immediately left of the giant Boulder. A recent change to this rapid occurred with the November 2022 high flow event of 25,000cfs and a new boulder completely blocks the left line. This makes this challenging rapid harder and more dangerous.

Location
Type
Rapid
Difficulty
Class V-
Mile Marker
4.2 mi
Directions
View Full Run
3. Marmot Dam site to Revenue Bridge
Sandy
III-IV 6.2 mi
Current Conditions
5-Day Forecast
Whitewater data from
American Whitewater